github.com/marksheahan/packer@v0.10.2-0.20160613200515-1acb2d6645a0/CHANGELOG.md

## (Unreleased)

BACKWARDS INCOMPATIBILITIES:

  * VNC and VRDP-like features in VirtualBox, VMware, and QEMU now configurable
    but bind to 127.0.0.1 by default to improve security. See the relevant
    builder docs for more info.

FEATURES:

  * **New Checksum post-processor**: Create a checksum file from your build artifacts as part of your build. [GH-3492]

IMPROVEMENTS:

  * builder/amazon: Added `disable_stop_instance` option to prevent automatic
    shutdown when the build is complete [GH-3352]
  * builder/amazon: Added `skip_region_validation` option to allow newer or custom AWS regions [GH-3598]
  * builder/azure: Now pre-validates `capture_container_name` and
    `capture_name_prefix` [GH-3537]
  * builder/azure: Support for custom images [GH-3575]
  * builder/google: Added support for `image_family` [GH-3503]
  * builder/null: Can now be used with WinRM [GH-2525]
  * builder/parallels: Now pauses between `boot_command` entries when running
    with `-debug` [GH-3547]
  * builder/qemu: Added `vnc_bind_address` option [GH-3574]
  * builder/virtualbox: Now pauses between `boot_command` entries when running
    with `-debug` [GH-3542]
  * builder/virtualbox: Added `vrdp_bind_address` option [GH-3566]
  * builder/vmware: Now paused between `boot_command` entries when running with
    `-debug` [GH-3542]
  * builder/vmware: Added `vnc_bind_address` option [GH-3565]
  * builder/qemu: Now pauses between `boot_command` entries running with
    `-debug` [GH-3547]
  * post-processor/compress: Added support for bgzf compression [GH-3501]

BUG FIXES:

  * post-processor/shell-local: Do not set execute bit on artifact file [GH-3505]
  * post-processor/vsphere: Fix upload failures with vsphere [GH-3321]
  * provisioner/ansible: Properly set host key checking even when a custom ENV
    is specified [GH-3568]
  * builder/azure: check for empty resource group [GH-3606]
  * builder/azure: fix token validity test [GH-3609]

## 0.10.1 (May 7, 2016)

FEATURES:

  * `azure-arm` builder: Can now build Windows images, and supports additional
    configuration. Please refer to the documentation for details.

IMPROVEMENTS:

  * core: Added support for `ATLAS_CAFILE` and `ATLAS_CAPATH` [GH-3494]
  * builder/azure: Improved build cancellation and cleanup of partially-
    provisioned resources [GH-3461]
  * builder/azure: Improved logging [GH-3461]
  * builder/azure: Added support for US Government and China clouds [GH-3461]
  * builder/azure: Users may now specify an image version [GH-3461]
  * builder/azure: Added device login [GH-3461]
  * builder/docker: Added `privileged` build option [GH-3475]
  * builder/google: Packer now identifies its version to the service [GH-3465]
  * provisioner/shell: Added `remote_folder` and `remote_file` options
    [GH-3462]
  * post-processor/compress: Added support for `bgzf` format and added
    `format` option [GH-3501]

BUG FIXES:

  * core: Fix hang after pressing enter key in `-debug` mode [GH-3346]
  * provisioner/chef: Use custom values for remote validation key path
    [GH-3468]

## 0.10.0 (March 14, 2016)

BACKWARDS INCOMPATIBILITIES:

  * Building Packer now requires go >= 1.5 (>= 1.6 is recommended). If you want
    to continue building with go 1.4 you can remove the `azurearmbuilder` line
    from `command/plugin.go`.

FEATURES:

  * **New `azure-arm` builder**: Build virtual machines in Azure Resource
    Manager

IMPROVEMENTS:

  * builder/google: Added support for `disk_type` [GH-2830]
  * builder/openstack: Added support for retrieving the Administrator password
    when using WinRM if no `winrm_password` is set [GH-3209]
  * provisioner/ansible: Added the `empty_groups` parameter [GH-3232]
  * provisioner/ansible: Added the `user` parameter [GH-3276]
  * provisioner/ansible: Don't use deprecated ssh option with Ansible 2.0
    [GH-3291]
  * provisioner/puppet-masterless: Add `ignore_exit_codes` parameter [GH-3349]

BUG FIXES:

  * builders/parallels: Handle `output_directory` containing `.` and `..`
    [GH-3239]
  * provisioner/ansible: os.Environ() should always be passed to the ansible
    command. [GH-3274]

## 0.9.0 (February 19, 2016)

BACKWARDS INCOMPATIBILITIES:

  * Packer now ships as a single binary, including plugins. If you install
    packer 0.9.0 over a previous packer installation, **you must delete all of
    the packer-* plugin files** or packer will load out-of-date plugins from
    disk.
  * Release binaries are now provided via <https://releases.hashicorp.com>.
  * Packer 0.9.0 is now built with Go 1.6.
  * core: Plugins that implement the Communicator interface must now implement
    a DownloadDir method [GH-2618]
  * builder/amazon: Inline `user_data` for EC2 is now base64 encoded
    automatically [GH-2539]
  * builder/parallels: `parallels_tools_host_path` and `guest_os_distribution`
    have been replaced by `guest_os_type`; use `packer fix` to update your
    templates [GH-2751]

FEATURES:

  * **Chef on Windows**: The chef provisioner now has native support for
    Windows using Powershell and WinRM [GH-1215]
  * **New `vmware-esxi` feature**: Packer can now export images from vCloud or
    vSphere during the build [GH-1921]
  * **New Ansible Provisioner**: `ansible` provisioner supports remote
    provisioning to keep your build image cleaner [GH-1969]
  * **New Amazon Import post-processor**: `amazon-import` allows you to upload an OVA-based VM to Amazon EC2 [GH-2962]
  * **Shell Local post-processor**: `shell-local` allows you to run shell
    commands on the host after a build has completed for custom packaging or
    publishing of your artifacts [GH-2706]
  * **Artifice post-processor**: Override packer artifacts during post-
    processing. This allows you to extract artifacts from a packer builder and
    use them with other post-processors like compress, docker, and Atlas.

IMPROVEMENTS:

  * core: Packer plugins are now compiled into the main binary, reducing file
    size and build times, and making packer easier to install. The overall
    plugin architecture has not changed and third-party plugins can still be
    loaded from disk. Please make sure your plugins are up-to-date! [GH-2854]
  * core: Packer now indicates line numbers for template parse errors [GH-2742]
  * core: Scripts are executed via `/usr/bin/env bash` instead of `/bin/bash`
    for broader compatibility. [GH-2913]
  * core: `target_path` for builder downloads can now be specified. [GH-2600]
  * core: WinRM communicator now supports HTTPS protocol [GH-3061]
  * core: Template syntax errors now show line, column, offset [GH-3180]
  * core: SSH communicator now supports downloading directories [GH-2618]
  * builder/amazon: Add support for `ebs_optimized` [GH-2806]
  * builder/amazon: You can now specify `0` for `spot_price` to switch to on
    demand instances [GH-2845]
  * builder/amazon: Added `ap-northeast-2` (Seoul) [GH-3056]
  * builder/amazon: packer will try to derive the AZ if only a subnet is
    specified [GH-3037]
  * builder/digitalocean: doubled instance wait timeouts to power off or
    shutdown (now 4 minutes) and to complete a snapshot (now 20 minutes)
    [GH-2939]
  * builder/google: `account_file` can now be provided as a JSON string
    [GH-2811]
  * builder/google: added support for `preemptible` instances [GH-2982]
  * builder/google: added support for static external IPs via `address` option
    [GH-3030]
  * builder/openstack: added retry on WaitForImage 404 [GH-3009]
  * builder/openstack: Can specify `source_image_name` instead of the ID
    [GH-2577]
  * builder/openstack: added support for SSH over IPv6 [GH-3197]
  * builder/parallels: Improve support for Parallels 11 [GH-2662]
  * builder/parallels: Parallels disks are now compacted by default [GH-2731]
  * builder/parallels: Packer will look for Parallels in
    `/Applications/Parallels Desktop.app` if it is not detected automatically
    [GH-2839]
  * builder/qemu: qcow2 images are now compacted by default [GH-2748]
  * builder/qemu: qcow2 images can now be compressed [GH-2748]
  * builder/qemu: Now specifies `virtio-scsi` by default [GH-2422]
  * builder/qemu: Now checks for version-specific options [GH-2376]
  * builder/qemu: Can now bypass disk cache using `iso_skip_cache` [GH-3105]
  * builder/qemu: `<wait>` in `boot_command` now accepts an arbitrary duration
    like <wait1m30s> [GH-3129]
  * builder/qemu: Expose `{{ .SSHHostPort }}` in templates [GH-2884]
  * builder/virtualbox: Added VRDP for debugging [GH-3188]
  * builder/vmware-esxi: Added private key auth for remote builds via
    `remote_private_key_file` [GH-2912]
  * post-processor/atlas: Added support for compile ID. [GH-2775]
  * post-processor/docker-import: Can now import Artifice artifacts [GH-2718]
  * provisioner/chef: Added `encrypted_data_bag_secret_path` option [GH-2653]
  * provisioner/puppet: Added the `extra_arguments` parameter [GH-2635]
  * provisioner/salt: Added `no_exit_on_failure`, `log_level`, and improvements
    to salt command invocation [GH-2660]

BUG FIXES:

  * core: Random number generator is now seeded. [GH-2640]
  * core: Packer should now have a lot less race conditions [GH-2824]
  * builder/amazon: The `no_device` option for block device mappings is now handled correctly [GH-2398]
  * builder/amazon: AMI name validation now matches Amazon's spec [GH-2774]
  * builder/amazon: Use snapshot size when volume size is unspecified [GH-2480]
  * builder/amazon: Pass AccessKey and SecretKey when uploading bundles for
    instance-backed AMIs [GH-2596]
  * builder/parallels: Added interpolation in `prlctl_post` [GH-2828]
  * builder/vmware: `format` option is now read correctly [GH-2892]
  * builder/vmware-esxi: Correct endless loop in destroy validation logic
    [GH-2911]
  * provisioner/shell: No longer leaves temp scripts behind [GH-1536]
  * provisioner/winrm: Now waits for reboot to complete before continuing with provisioning [GH-2568]
  * post-processor/artifice: Fix truncation of files downloaded from Docker. [GH-2793]


## 0.8.6 (Aug 22, 2015)

IMPROVEMENTS:

  * builder/docker: Now supports Download so it can be used with the file
      provisioner to download a file from a container. [GH-2585]
  * builder/docker: Now verifies that the artifact will be used before the build
      starts, unless the `discard` option is specified. This prevent failures
      after the build completes. [GH-2626]
  * post-processor/artifice: Now supports glob-like syntax for filenames [GH-2619]
  * post-processor/vagrant: Like the compress post-processor, vagrant now uses a
      parallel gzip algorithm to compress vagrant boxes. [GH-2590]

BUG FIXES:

  * core: When `iso_url` is a local file and the checksum is invalid, the local
      file will no longer be deleted. [GH-2603]
  * builder/parallels: Fix interpolation in `parallels_tools_guest_path` [GH-2543]

## 0.8.5 (Aug 10, 2015)

FEATURES:

  * **[Beta]** Artifice post-processor: Override packer artifacts during post-
      processing. This allows you to extract artifacts from a packer builder
      and use them with other post-processors like compress, docker, and Atlas.

IMPROVEMENTS:

  * Many docs have been updated and corrected; big thanks to our contributors!
  * builder/openstack: Add debug logging for IP addresses used for SSH [GH-2513]
  * builder/openstack: Add option to use existing SSH keypair [GH-2512]
  * builder/openstack: Add support for Glance metadata [GH-2434]
  * builder/qemu and builder/vmware: Packer's VNC connection no longer asks for
      an exclusive connection [GH-2522]
  * provisioner/salt-masterless: Can now customize salt remote directories [GH-2519]

BUG FIXES:

  * builder/amazon: Improve instance cleanup by storing id sooner [GH-2404]
  * builder/amazon: Only fetch windows password when using WinRM communicator [GH-2538]
  * builder/openstack: Support IPv6 SSH address [GH-2450]
  * builder/openstack: Track new IP address discovered during RackConnect [GH-2514]
  * builder/qemu: Add 100ms delay between VNC key events. [GH-2415]
  * post-processor/atlas: atlas_url configuration option works now [GH-2478]
  * post-processor/compress: Now supports interpolation in output config [GH-2414]
  * provisioner/powershell: Elevated runs now receive environment variables [GH-2378]
  * provisioner/salt-masterless: Clarify error messages when we can't create or
      write to the temp directory [GH-2518]
  * provisioner/salt-masterless: Copy state even if /srv/salt exists already [GH-1699]
  * provisioner/salt-masterless: Make sure /etc/salt exists before writing to it [GH-2520]
  * provisioner/winrm: Connect to the correct port when using NAT with
      VirtualBox / VMware [GH-2399]

Note: 0.8.3 was pulled and 0.8.4 was skipped.

## 0.8.2 (July 17, 2015)

IMPROVEMENTS:

  * builder/docker: Add option to use a Pty [GH-2425]

BUG FIXES:

  * core: Fix crash when `min_packer_version` is specified in a template. [GH-2385]
  * builder/amazon: Fix EC2 devices being included in EBS mappings [GH-2459]
  * builder/googlecompute: Fix default name for GCE images [GH-2400]
  * builder/null: Fix error message with missing ssh_host [GH-2407]
  * builder/virtualbox: Use --portcount on VirtualBox 5.x [GH-2438]
  * provisioner/puppet: Packer now correctly handles a directory for manifest_file [GH-2463]
  * provisioner/winrm: Fix potential crash with WinRM [GH-2416]

## 0.8.1 (July 2, 2015)

IMPROVEMENTS:

  * builder/amazon: When debug mode is enabled, the Windows administrator
      password for Windows instances will be shown [GH-2351]

BUG FIXES:

  * core: `min_packer_version`  field in configs work [GH-2356]
  * core: The `build_name` and `build_type` functions work in provisioners [GH-2367]
  * core: Handle timeout in SSH handshake [GH-2333]
  * command/build: Fix reading configuration from stdin [GH-2366]
  * builder/amazon: Fix issue with sharing AMIs when using `ami_users` [GH-2308]
  * builder/amazon: Fix issue when using multiple Security Groups [GH-2381]
  * builder/amazon: Fix for tag creation when creating new ec2 instance [GH-2317]
  * builder/amazon: Fix issue with creating AMIs with multiple device mappings [GH-2320]
  * builder/amazon: Fix failing AMI snapshot tagging when copying to other
      regions [GH-2316]
  * builder/amazon: Fix setting AMI launch permissions [GH-2348]
  * builder/amazon: Fix spot instance cleanup to remove the correct request [GH-2327]
  * builder/amazon: Fix `bundle_prefix` not interpolating `timestamp` [GH-2352]
  * builder/amazon-instance: Fix issue with creating AMIs without specifying a
      virtualization type [GH-2330]
  * builder/digitalocean: Fix builder using private IP instead of public IP [GH-2339]
  * builder/google: Set default communicator settings properly [GH-2353]
  * builder/vmware-iso: Setting `checksum_type` to `none` for ESX builds
      now works [GH-2323]
  * provisioner/chef: Use knife config file vs command-line params to
      clean up nodes so full set of features can be used [GH-2306]
  * post-processor/compress: Fixed crash in compress post-processor plugin [GH-2311]

## 0.8.0 (June 23, 2015)

BACKWARDS INCOMPATIBILITIES:

  * core: SSH connection will no longer request a PTY by default. This
      can be enabled per builder.
  * builder/digitalocean: no longer supports the v1 API which has been
      deprecated for some time. Most configurations should continue to
      work as long as you use the `api_token` field for auth.
  * builder/digitalocean: `image`, `region`, and `size` are now required.
  * builder/openstack: auth parameters have been changed to better
      reflect OS terminology. Existing environment variables still work.

FEATURES:

  * **WinRM:** You can now connect via WinRM with almost every builder.
      See the docs for more info. [GH-2239]
  * **Windows AWS Support:** Windows AMIs can now be built without any
      external plugins: Packer will start a Windows instance, get the
      admin password, and can use WinRM (above) to connect through. [GH-2240]
  * **Disable SSH:** Set `communicator` to "none" in any builder to disable SSH
      connections. Note that provisioners won't work if this is done. [GH-1591]
  * **SSH Agent Forwarding:** SSH Agent Forwarding will now be enabled
      to allow access to remote servers such as private git repos. [GH-1066]
  * **SSH Bastion Hosts:** You can now specify a bastion host for
      SSH access (works with all builders). [GH-387]
  * **OpenStack v3 Identity:** The OpenStack builder now supports the
      v3 identity API.
  * **Docker builder supports SSH**: The Docker builder now supports containers
      with SSH, just set `communicator` to "ssh" [GH-2244]
  * **File provisioner can download**: The file provisioner can now download
      files out of the build process. [GH-1909]
  * **New config function: `build_name`**: The name of the currently running
      build. [GH-2232]
  * **New config function: `build_type`**: The type of the currently running
      builder. This is useful for provisioners. [GH-2232]
  * **New config function: `template_dir`**: The directory to the template
      being built. This should be used for template-relative paths. [GH-54]
  * **New provisioner: shell-local**: Runs a local shell script. [GH-770]
  * **New provisioner: powershell**: Provision Windows machines
      with PowerShell scripts. [GH-2243]
  * **New provisioner: windows-shell**: Provision Windows machines with
      batch files. [GH-2243]
  * **New provisioner: windows-restart**: Restart a Windows machines and
      wait for it to come back online. [GH-2243]
  * **Compress post-processor supports multiple algorithms:** The compress
      post-processor now supports lz4 compression and compresses gzip in
      parallel for much faster throughput.

IMPROVEMENTS:

  * core: Interrupt handling for SIGTERM signal as well. [GH-1858]
  * core: HTTP downloads support resuming [GH-2106]
  * builder/*: Add `ssh_handshake_attempts` to configure the number of
      handshake attempts done before failure [GH-2237]
  * builder/amazon: Add `force_deregister` option for automatic AMI
      deregistration [GH-2221]
  * builder/amazon: Now applies tags to EBS snapshots [GH-2212]
  * builder/amazon: Clean up orphaned volumes from Source AMIs [GH-1783]
  * builder/amazon: Support custom keypairs [GH-1837]
  * builder/amazon-chroot: Can now resize the root volume of the resulting
      AMI with the `root_volume_size` option [GH-2289]
  * builder/amazon-chroot: Add `mount_options` configuration option for providing
      options to the `mount` command [GH-2296]
  * builder/digitalocean: Save SSH key to pwd if debug mode is on. [GH-1829]
  * builder/digitalocean: User data support [GH-2113]
  * builder/googlecompute: Option to use internal IP for connections. [GH-2152]
  * builder/parallels: Support Parallels Desktop 11 [GH-2199]
  * builder/openstack: Add `rackconnect_wait` for Rackspace customers to wait for
      RackConnect data to appear
  * buidler/openstack: Add `ssh_interface` option for rackconnect for users that
      have prohibitive firewalls
  * builder/openstack: Flavor names can be used as well as refs
  * builder/openstack: Add `availability_zone` [GH-2016]
  * builder/openstack: Machine will be stopped prior to imaging if the
      cluster supports the `startstop` extension. [GH-2223]
  * builder/openstack: Support for user data [GH-2224]
  * builder/qemu: Default accelerator to "tcg" on Windows [GH-2291]
  * builder/virtualbox: Added option: `ssh_skip_nat_mapping` to skip the
      automatic port forward for SSH and to use the guest port directly. [GH-1078]
  * builder/virtualbox: Added SCSI support
  * builder/vmware: Support for additional disks [GH-1382]
  * builder/vmware: Can now customize the template used for adding disks [GH-2254]
  * command/fix: After fixing, the template is validated [GH-2228]
  * command/push: Add `-name` flag for specifying name from CLI [GH-2042]
  * command/push: Push configuration in templates supports variables [GH-1861]
  * post-processor/docker-save: Can be chained [GH-2179]
  * post-processor/docker-tag: Support `force` option [GH-2055]
  * post-processor/docker-tag: Can be chained [GH-2179]
  * post-processor/vsphere: Make more fields optional, support empty
      resource pools. [GH-1868]
  * provisioner/puppet-masterless: `working_directory` option [GH-1831]
  * provisioner/puppet-masterless: `packer_build_name` and
      `packer_build_type` are default facts. [GH-1878]
  * provisioner/puppet-server: `ignore_exit_codes` option added [GH-2280]

BUG FIXES:

  * core: Fix potential panic for post-processor plugin exits [GH-2098]
  * core: `PACKER_CONFIG` may point to a non-existent file [GH-2226]
  * builder/amazon: Allow spaces in AMI names when using `clean_ami_name` [GH-2182]
  * builder/amazon: Remove deprecated ec2-upload-bundle paramger [GH-1931]
  * builder/amazon: Use IAM Profile to upload bundle if provided [GH-1985]
  * builder/amazon: Use correct exit code after SSH authentication failed [GH-2004]
  * builder/amazon: Retry finding created instance for eventual
      consistency. [GH-2129]
  * builder/amazon: If no AZ is specified, use AZ chosen automatically by
      AWS for spot instance. [GH-2017]
  * builder/amazon: Private key file (only available in debug mode)
      is deleted on cleanup. [GH-1801]
  * builder/amazon: AMI copy won't copy to the source region [GH-2123]
  * builder/amazon: Validate AMI doesn't exist with name prior to build [GH-1774]
  * builder/amazon: Improved retry logic around waiting for instances. [GH-1764]
  * builder/amazon: Fix issues with creating Block Devices. [GH-2195]
  * builder/amazon/chroot: Retry waiting for disk attachments [GH-2046]
  * builder/amazon/chroot: Only unmount path if it is mounted [GH-2054]
  * builder/amazon/instance: Use `-i` in sudo commands so PATH is inherited. [GH-1930]
  * builder/amazon/instance: Use `--region` flag for bundle upload command. [GH-1931]
  * builder/digitalocean: Wait for droplet to unlock before changing state,
      should lower the "pending event" errors.
  * builder/digitalocean: Ignore invalid fields from the ever-changing v2 API
  * builder/digitalocean: Private images can be used as a source [GH-1792]
  * builder/docker: Fixed hang on prompt while copying script
  * builder/docker: Use `docker exec` for newer versions of Docker for
      running scripts [GH-1993]
  * builder/docker: Fix crash that could occur at certain timed ctrl-c [GH-1838]
  * builder/docker: validate that `export_path` is not a directory [GH-2105]
  * builder/google: `ssh_timeout` is respected [GH-1781]
  * builder/openstack: `ssh_interface` can be used to specify the interface
      to retrieve the SSH IP from. [GH-2220]
  * builder/qemu: Add `disk_discard` option [GH-2120]
  * builder/qemu: Use proper SSH port, not hardcoded to 22. [GH-2236]
  * builder/qemu: Find unused SSH port if SSH port is taken. [GH-2032]
  * builder/virtualbox: Bind HTTP server to IPv4, which is more compatible with
      OS installers. [GH-1709]
  * builder/virtualbox: Remove the floppy controller in addition to the
      floppy disk. [GH-1879]
  * builder/virtualbox: Fixed regression where downloading ISO without a
      ".iso" extension didn't work. [GH-1839]
  * builder/virtualbox: Output dir is verified at runtime, not template
      validation time. [GH-2233]
  * builder/virtualbox: Find unused SSH port if SSH port is taken. [GH-2032]
  * builder/vmware: Add 100ms delay between keystrokes to avoid subtle
      timing issues in most cases. [GH-1663]
  * builder/vmware: Bind HTTP server to IPv4, which is more compatible with
      OS installers. [GH-1709]
  * builder/vmware: Case-insensitive match of MAC address to find IP [GH-1989]
  * builder/vmware: More robust IP parsing from ifconfig output [GH-1999]
  * builder/vmware: Nested output directories for ESXi work [GH-2174]
  * builder/vmware: Output dir is verified at runtime, not template
      validation time. [GH-2233]
  * command/fix: For the `virtualbox` to `virtualbox-iso` builder rename,
      provisioner overrides are now also fixed [GH-2231]
  * command/validate: don't crash for invalid builds [GH-2139]
  * post-processor/atlas: Find common archive prefix for Windows [GH-1874]
  * post-processor/atlas: Fix index out of range panic [GH-1959]
  * post-processor/vagrant-cloud: Fixed failing on response
  * post-processor/vagrant-cloud: Don't delete version on error [GH-2014]
  * post-processor/vagrant-cloud: Retry failed uploads a few times
  * provisioner/chef-client: Fix permissions issues on default dir [GH-2255]
  * provisioner/chef-client: Node cleanup works now. [GH-2257]
  * provisioner/puppet-masterless: Allow manifest_file to be a directory
  * provisioner/salt-masterless: Add `--retcode-passthrough` to salt-call
  * provisioner/shell: chmod executable script to 0755, not 0777 [GH-1708]
  * provisioner/shell: inline commands failing will fail the provisioner [GH-2069]
  * provisioner/shell: single quotes in env vars are escaped [GH-2229]
  * provisioner/shell: Temporary file is deleted after run [GH-2259]
  * provisioner/shell: Randomize default script name to avoid strange
      race issues from Windows. [GH-2270]

## 0.7.5 (December 9, 2014)

FEATURES:

  * **New command: `packer push`**: Push template and files to HashiCorp's
      Atlas for building your templates automatically.
  * **New post-processor: `atlas`**: Send artifact to HashiCorp's Atlas for
      versioning and storing artifacts. These artifacts can then be queried
      using the API, Terraform, etc.

IMPROVEMENTS:

  * builder/googlecompute: Support for ubuntu-os-cloud project
  * builder/googlecompute: Support for OAuth2 to avoid client secrets file
  * builder/googlecompute: GCE image from persistant disk instead of tarball
  * builder/qemu: Checksum type "none" can be used
  * provisioner/chef: Generate a node name if none available
  * provisioner/chef: Added ssl_verify_mode configuration

BUG FIXES:

  * builder/parallels: Fixed attachment of ISO to cdrom device
  * builder/parallels: Fixed boot load ordering
  * builder/digitalocean: Fixed decoding of size
  * builder/digitalocean: Fixed missing content-type header in request
  * builder/digitalocean: Fixed use of private IP
  * builder/digitalocean: Fixed the artifact ID generation
  * builder/vsphere: Fixed credential escaping
  * builder/qemu: Fixed use of CDROM with disk_image
  * builder/aws: Fixed IP address for SSH in VPC
  * builder/aws: Fixed issue with multiple block devices
  * builder/vmware: Upload VMX to ESX5 after editing
  * communicator/docker: Fix handling of symlinks during upload
  * provisioner/chef: Fixed use of sudo in some cases
  * core: Fixed build name interpolation
  * postprocessor/vagrant: Fixed check for Vagrantfile template

## 0.7.2 (October 28, 2014)

FEATURES:

  * builder/digitalocean: API V2 support. [GH-1463]
  * builder/parallels: Don't depend on _prl-utils_ [GH-1499]

IMPROVEMENTS:

  * builder/amazon/all: Support new AWS Frankfurt region.
  * builder/docker: Allow remote `DOCKER_HOST`, which works as long as
      volumes work. [GH-1594]
  * builder/qemu: Can set cache mode for main disk. [GH-1558]
  * builder/qemu: Can build from pre-existing disk. [GH-1342]
  * builder/vmware: Can specify path to Fusion installation with environmental
      variable `FUSION_APP_PATH`. [GH-1552]
  * builder/vmware: Can specify the HW version for the VMX. [GH-1530]
  * builder/vmware/esxi: Will now cache ISOs/floppies remotely. [GH-1479]
  * builder/vmware/vmx: Source VMX can have a disk connected via SATA. [GH-1604]
  * post-processors/vagrant: Support Qemu (libvirt) boxes. [GH-1330]
  * post-processors/vagrantcloud: Support self-hosted box URLs.

BUG FIXES:

  * core: Fix loading plugins from pwd. [GH-1521]
  * builder/amazon: Prefer token in config if given. [GH-1544]
  * builder/amazon/all: Extended timeout for waiting for AMI. [GH-1533]
  * builder/virtualbox: Can read VirtualBox version on FreeBSD. [GH-1570]
  * builder/virtualbox: More robust reading of guest additions URL. [GH-1509]
  * builder/vmware: Always remove floppies/drives. [GH-1504]
  * builder/vmware: Wait some time so that post-VMX update aren't
      overwritten. [GH-1504]
  * builder/vmware/esxi: Retry power on if it fails. [GH-1334]
  * builder/vmware-vmx: Fix issue with order of boot command support [GH-1492]
  * builder/amazon: Extend timeout and allow user override [GH-1533]
  * builder/parallels: Ignore 'The fdd0 device does not exist' [GH-1501]
  * builder/parallels: Rely on Cleanup functions to detach devices [GH-1502]
  * builder/parallels: Create VM without hdd and then add it later [GH-1548]
  * builder/parallels: Disconnect cdrom0 [GH-1605]
  * builder/qemu: Don't use `-redir` flag anymore, replace with
      `hostfwd` options. [GH-1561]
  * builder/qemu: Use `pc` as default machine type instead of `pc-1.0`.
  * providers/aws: Ignore transient network errors. [GH-1579]
  * provisioner/ansible: Don't buffer output so output streams in. [GH-1585]
  * provisioner/ansible: Use inventory file always to avoid potentially
      deprecated feature. [GH-1562]
  * provisioner/shell: Quote environmental variables. [GH-1568]
  * provisioner/salt: Bootstrap over SSL. [GH-1608]
  * post-processors/docker-push: Work with docker-tag artifacts. [GH-1526]
  * post-processors/vsphere: Append "/" to object address. [GH-1615]

## 0.7.1 (September 10, 2014)

FEATURES:

  * builder/vmware: VMware Fusion Pro 7 is now supported. [GH-1478]

BUG FIXES:

  * core: SSH will connect slightly faster if it is ready immediately.
  * provisioner/file: directory uploads no longer hang. [GH-1484]
  * provisioner/file: fixed crash on large files. [GH-1473]
  * scripts: Windows executable renamed to packer.exe. [GH-1483]

## 0.7.0 (September 8, 2014)

BACKWARDS INCOMPATIBILITIES:

  * The authentication configuration for Google Compute Engine has changed.
      The new method is much simpler, but is not backwards compatible.
      `packer fix` will _not_ fix this. Please read the updated GCE docs.

FEATURES:

  * **New Post-Processor: `compress`** - Gzip compresses artifacts with files.
  * **New Post-Processor: `docker-save`** - Save an image. This is similar to
      export, but preserves the image hierarchy.
  * **New Post-Processor: `docker-tag`** - Tag a created image.
  * **New Template Functions: `upper`, `lower`** - See documentation for
      more details.
  * core: Plugins are automatically discovered if they're named properly.
      Packer will look in the PWD and the directory with `packer` for
      binaries named `packer-TYPE-NAME`.
  * core: Plugins placed in `~/.packer.d/plugins` are now automatically
      discovered.
  * builder/amazon: Spot instances can now be used to build EBS backed and
      instance store images. [GH-1139]
  * builder/docker: Images can now be committed instead of exported. [GH-1198]
  * builder/virtualbox-ovf: New `import_flags` setting can be used to add
      new command line flags to `VBoxManage import` to allow things such
      as EULAs to be accepted. [GH-1383]
  * builder/virtualbox-ovf: Boot commands and the HTTP server are supported.
      [GH-1169]
  * builder/vmware: VMware Player 6 is now supported. [GH-1168]
  * builder/vmware-vmx: Boot commands and the HTTP server are supported.
      [GH-1169]

IMPROVEMENTS:

  * core: `isotime` function can take a format. [GH-1126]
  * builder/amazon/all: `AWS_SECURITY_TOKEN` is read and can also be
      set with the `token` configuration. [GH-1236]
  * builder/amazon/all: Can force SSH on the private IP address with
      `ssh_private_ip`. [GH-1229]
  * builder/amazon/all: String fields in device mappings can use variables. [GH-1090]
  * builder/amazon-instance: EBS AMIs can be used as a source. [GH-1453]
  * builder/digitalocean: Can set API URL endpoint. [GH-1448]
  * builder/digitalocean: Region supports variables. [GH-1452]
  * builder/docker: Can now specify login credentials to pull images.
  * builder/docker: Support mounting additional volumes. [GH-1430]
  * builder/parallels/all: Path to tools ISO is calculated automatically. [GH-1455]
  * builder/parallels-pvm: `reassign_mac` option to choose wehther or not
      to generate a new MAC address. [GH-1461]
  * builder/qemu: Can specify "none" acceleration type. [GH-1395]
  * builder/qemu: Can specify "tcg" acceleration type. [GH-1395]
  * builder/virtualbox/all: `iso_interface` option to mount ISO with SATA. [GH-1200]
  * builder/vmware-vmx: Proper `floppy_files` support. [GH-1057]
  * command/build: Add `-color=false` flag to disable color. [GH-1433]
  * post-processor/docker-push: Can now specify login credentials. [GH-1243]
  * provisioner/chef-client: Support `chef_environment`. [GH-1190]

BUG FIXES:

  * core: nicer error message if an encrypted private key is used for
      SSH. [GH-1445]
  * core: Fix crash that could happen with a well timed double Ctrl-C.
      [GH-1328] [GH-1314]
  * core: SSH TCP keepalive period is now 5 seconds (shorter). [GH-1232]
  * builder/amazon-chroot: Can properly build HVM images now. [GH-1360]
  * builder/amazon-chroot: Fix crash in root device check. [GH-1360]
  * builder/amazon-chroot: Add description that Packer made the snapshot
      with a time. [GH-1388]
  * builder/amazon-ebs: AMI is deregistered if an error. [GH-1186]
  * builder/amazon-instance: Fix deprecation warning for `ec2-bundle-vol`
      [GH-1424]
  * builder/amazon-instance: Add `--no-filter` to the `ec2-bundle-vol`
      command by default to avoid corrupting data by removing package
      manager certs. [GH-1137]
  * builder/amazon/all: `delete_on_termination` set to false will work.
  * builder/amazon/all: Fix race condition on setting tags. [GH-1367]
  * builder/amazon/all: More desctriptive error messages if Amazon only
      sends an error code. [GH-1189]
  * builder/docker: Error if `DOCKER_HOST` is set.
  * builder/docker: Remove the container during cleanup. [GH-1206]
  * builder/docker: Fix case where not all output would show up from
      provisioners.
  * builder/googlecompute: add `disk_size` option. [GH-1397]
  * builder/googlecompute: Auth works with latest formats on Google Cloud
      Console. [GH-1344]
  * builder/openstack: Region is not required. [GH-1418]
  * builder/parallels-iso: ISO not removed from VM after install [GH-1338]
  * builder/parallels/all: Add support for Parallels Desktop 10 [GH-1438]
  * builder/parallels/all: Added some navigation keys [GH-1442]
  * builder/qemu: If headless, sdl display won't be used. [GH-1395]
  * builder/qemu: Use `512M` as `-m` default. [GH-1444]
  * builder/virtualbox/all: Search `VBOX_MSI_INSTALL_PATH` for path to
      `VBoxManage` on Windows. [GH-1337]
  * builder/virtualbox/all: Seed RNG to avoid same ports. [GH-1386]
  * builder/virtualbox/all: Better error if guest additions URL couldn't be
      detected. [GH-1439]
  * builder/virtualbox/all: Detect errors even when `VBoxManage` exits
      with a zero exit code. [GH-1119]
  * builder/virtualbox/iso: Append timestamp to default name for parallel
      builds. [GH-1365]
  * builder/vmware/all: No more error when Packer stops an already-stopped
      VM. [GH-1300]
  * builder/vmware/all: `ssh_host` accepts templates. [GH-1396]
  * builder/vmware/all: Don't remount floppy in VMX post step. [GH-1239]
  * builder/vmware/vmx: Do not re-add floppy disk files to VMX [GH-1361]
  * builder/vmware-iso: Fix crash when `vnc_port_min` and max were the
      same value. [GH-1288]
  * builder/vmware-iso: Finding an available VNC port on Windows works. [GH-1372]
  * builder/vmware-vmx: Nice error if Clone is not supported (not VMware
      Fusion Pro). [GH-787]
  * post-processor/vagrant: Can supply your own metadata.json. [GH-1143]
  * provisioner/ansible-local: Use proper path on Windows. [GH-1375]
  * provisioner/file: Mode will now be preserved. [GH-1064]

## 0.6.1 (July 20, 2014)

FEATURES:

  * **New post processor:** `vagrant-cloud` - Push box files generated by
    vagrant post processor to Vagrant Cloud. [GH-1289]
  * Vagrant post-processor can now packer Hyper-V boxes.

IMPROVEMENTS:

  * builder/amazon: Support for enhanced networking on HVM images. [GH-1228]
  * builder/amazon-ebs: Support encrypted EBS volumes [GH-1194]
  * builder/ansible: Add `playbook_dir` option. [GH-1000]
  * builder/openstack: Add ability to configure networks. [GH-1261]
  * builder/openstack: Skip certificate verification. [GH-1121]
  * builder/parallels/all: Add ability to select interface to connect to.
  * builder/parallels/pvm: Support `boot_command`. [GH-1082]
  * builder/virtualbox/all: Attempt to use local guest additions ISO
      before downloading from internet. [GH-1123]
  * builder/virtualbox/ovf: Supports `guest_additions_mode` [GH-1035]
  * builder/vmware/all: Increase cleanup timeout to 120 seconds [GH-1167]
  * builder/vmware/all: Add `vmx_data_post` for modifying VMX data
      after shutdown. [GH-1149]
  * builder/vmware/vmx: Supports tools uploading. [GH-1154]

BUG FIXES:

  * core: `isotime` is the same time during the entire build. [GH-1153]
  * builder/amazon-common: Sort AMI strings before outputting [GH-1305]
  * builder/amazon: User data can use templates/variables. [GH-1343]
  * builder/amazon: Can now build AMIs in GovCloud.
  * builder/null: SSH info can use templates/variables. [GH-1343]
  * builder/openstack: Workaround for gophercloud.ServerById crashing [GH-1257]
  * builder/openstack: Force IPv4 addresses from address pools [GH-1258]
  * builder/parallels: Do not delete entire CDROM device. [GH-1115]
  * builder/parallels: Errors while creating floppy disk. [GH-1225]
  * builder/parallels: Errors while removing floppy drive. [GH-1226]
  * builder/virtualbox-ovf: Supports guest additions options. [GH-1120]
  * builder/vmware-iso: Fix esx5 path separator in windows. [GH-1316]
  * builder/vmware: Remote ESXi builder now uploads floppy. [GH-1106]
  * builder/vmware: Remote ESXi builder no longer re-uploads ISO every
      time. [GH-1244]
  * post-processor/vsphere: Accept DOMAIN\account usernames [GH-1178]
  * provisioner/chef-*: Fix remotePaths for Windows [GH-394]

## 0.6.0 (May 2, 2014)

FEATURES:

  * **New builder:** `null` - The null builder does not produce any
    artifacts, but is useful for debugging provisioning scripts. [GH-970]
  * **New builder:** `parallels-iso` and `parallels-pvm` - These can be
    used to build Parallels virtual machines. [GH-1101]
  * **New provisioner:** `chef-client` - Provision using a the `chef-client`
    command, which talks to a Chef Server. [GH-855]
  * **New provisioner:** `puppet-server` - Provision using Puppet by
    communicating to a Puppet master. [GH-796]
  * `min_packer_version` can be specified in a Packer template to force
    a minimum version. [GH-487]

IMPROVEMENTS:

  * core: RPC transport between plugins switched to MessagePack
  * core: Templates array values can now be comma separated strings.
      Most importantly, this allows for user variables to fill
      array configurations. [GH-950]
  * builder/amazon: Added `ssh_private_key_file` option [GH-971]
  * builder/amazon: Added `ami_virtualization_type` option [GH-1021]
  * builder/digitalocean: Regions, image names, and sizes can be
      names that are looked up for their valid ID. [GH-960]
  * builder/googlecompute: Configurable instance name. [GH-1065]
  * builder/openstack: Support for conventional OpenStack environmental
      variables such as `OS_USERNAME`, `OS_PASSWORD`, etc. [GH-768]
  * builder/openstack: Support `openstack_provider` option to automatically
      fill defaults for different OpenStack variants. [GH-912]
  * builder/openstack: Support security groups. [GH-848]
  * builder/qemu: User variable expansion in `ssh_key_path` [GH-918]
  * builder/qemu: Floppy disk files list can also include globs
      and directories. [GH-1086]
  * builder/virtualbox: Support an `export_opts` option which allows
      specifying arbitrary arguments when exporting the VM. [GH-945]
  * builder/virtualbox: Added `vboxmanage_post` option to run vboxmanage
      commands just before exporting [GH-664]
  * builder/virtualbox: Floppy disk files list can also include globs
      and directories. [GH-1086]
  * builder/vmware: Workstation 10 support for Linux. [GH-900]
  * builder/vmware: add cloning support on Windows [GH-824]
  * builder/vmware: Floppy disk files list can also include globs
      and directories. [GH-1086]
  * command/build: Added `-parallel` flag so you can disable parallelization
    with `-no-parallel`. [GH-924]
  * post-processors/vsphere: `disk_mode` option. [GH-778]
  * provisioner/ansible: Add `inventory_file` option [GH-1006]
  * provisioner/chef-client: Add `validation_client_name` option. [GH-1056]

BUG FIXES:

  * core: Errors are properly shown when adding bad floppy files. [GH-1043]
  * core: Fix some URL parsing issues on Windows.
  * core: Create Cache directory only when it is needed. [GH-367]
  * builder/amazon-instance: Use S3Endpoint for ec2-upload-bundle arg,
      which works for every region. [GH-904]
  * builder/digitalocean: updated default image_id [GH-1032]
  * builder/googlecompute: Create persistent disk as boot disk via
      API v1 [GH-1001]
  * builder/openstack: Return proper error on invalid instance states [GH-1018]
  * builder/virtualbox-iso: Retry unregister a few times to deal with
      VBoxManage randomness. [GH-915]
  * provisioner/ansible: Fix paths when provisioning Linux from
      Windows [GH-963]
  * provisioner/ansible: set cwd to staging directory [GH-1016]
  * provisioners/chef-client: Don't chown directory with Ubuntu. [GH-939]
  * provisioners/chef-solo: Deeply nested JSON works properly. [GH-1076]
  * provisioners/shell: Env var values can have equal signs. [GH-1045]
  * provisioners/shell: chmod the uploaded script file to 0777. [GH-994]
  * post-processor/docker-push: Allow repositories with ports. [GH-923]
  * post-processor/vagrant: Create parent directories for `output` path [GH-1059]
  * post-processor/vsphere: datastore, network, and folder are no longer
      required. [GH-1091]

## 0.5.2 (02/21/2014)

FEATURES:

* **New post-processor:** `docker-import` - Import a Docker image
  and give it a specific repository/tag.
* **New post-processor:** `docker-push` - Push an imported image to
  a registry.

IMPROVEMENTS:

* core: Most downloads made by Packer now use a custom user agent. [GH-803]
* builder/googlecompute: SSH private key will be saved to disk if `-debug`
  is specified. [GH-867]
* builder/qemu: Can specify the name of the qemu binary. [GH-854]
* builder/virtualbox-ovf: Can specify import options such as "keepallmacs".
  [GH-883]

BUG FIXES:

* core: Fix crash case if blank parameters are given to Packer. [GH-832]
* core: Fix crash if big file uploads are done. [GH-897]
* core: Fix crash if machine-readable output is going to a closed
  pipe. [GH-875]
* builder/docker: user variables work properly. [GH-777]
* builder/qemu: reboots are now possible in provisioners. [GH-864]
* builder/virtualbox,vmware: iso\_checksum is not required if the
  checksum type is "none"
* builder/virtualbox,vmware/qemu: Support for additional scancodes for
  `boot_command` such as `<up>`, `<left>`, `<insert>`, etc. [GH-808]
* communicator/ssh: Send TCP keep-alives on connections. [GH-872]
* post-processor/vagrant: AWS/DigitalOcean keep input artifacts by
  default. [GH-55]
* provisioners/ansible-local: Properly upload custom playbooks. [GH-829]
* provisioners/ansible-local: Better error if ansible isn't installed.
  [GH-836]

## 0.5.1 (01/02/2014)

BUG FIXES:

* core: If a stream ID loops around, don't let it use stream ID 0 [GH-767]
* core: Fix issue where large writes to plugins would result in stream
  corruption. [GH-727]
* builders/virtualbox-ovf: `shutdown_timeout` config works. [GH-772]
* builders/vmware-iso: Remote driver works properly again. [GH-773]

## 0.5.0 (12/30/2013)

BACKWARDS INCOMPATIBILITIES:

* "virtualbox" builder has been renamed to "virtualbox-iso". Running your
   template through `packer fix` will resolve this.
* "vmware" builder has been renamed to "vmware-iso". Running your template
  through `packer fix` will resolve this.
* post-processor/vagrant: Syntax for overriding by provider has changed.
  See the documentation for more information. Running your template
  through `packer fix` should resolve this.
* post-processor/vsphere: Some available configuration options were
  changed. Running your template through `packer fix` should resolve
  this.
* provisioner/puppet-masterless: The `execute_command` no longer has
  the `Has*` variables, since the templating language now supports
  comparison operations. See the Go documentation for more info:
  http://golang.org/pkg/text/template/

FEATURES:

* **New builder:** Google Compute Engine. You can now build images for
  use in Google Compute Engine. See the documentation for more information.
  [GH-715]
* **New builder:** "virtualbox-ovf" can build VirtualBox images from
  an existing OVF or OVA. [GH-201]
* **New builder:** "vmware-vmx" can build VMware images from an existing
  VMX. [GH-201]
* Environmental variables can now be accessed as default values for
  user variables using the "env" function. See the documentation for more
  information.
* "description" field in templates: write a human-readable description
  of what a template does. This will be shown in `packer inspect`.
* Vagrant post-processor now accepts a list of files to include in the
  box.
* All provisioners can now have a "pause\_before" parameter to wait
  some period of time before running that provisioner. This is useful
  for reboots. [GH-737]

IMPROVEMENTS:

* core: Plugins communicate over a single TCP connection per plugin now,
  instead of sometimes dozens. Performance around plugin communication
  dramatically increased.
* core: Build names are now template processed so you can use things
  like user variables in them. [GH-744]
* core: New "pwd" function available globally that returns the working
  directory. [GH-762]
* builder/amazon/all: Launched EC2 instances now have a name of
  "Packer Builder" so that they are easily recognizable. [GH-642]
* builder/amazon/all: Copying AMIs to multiple regions now happens
  in parallel. [GH-495]
* builder/amazon/all: Ability to specify "run\_tags" to tag the instance
  while running. [GH-722]
* builder/digitalocean: Private networking support. [GH-698]
* builder/docker: A "run\_command" can be specified, configuring how
  the container is started. [GH-648]
* builder/openstack: In debug mode, the generated SSH keypair is saved
  so you can SSH into the machine. [GH-746]
* builder/qemu: Floppy files are supported. [GH-686]
* builder/qemu: Next `run_once` option tells Qemu to run only once,
  which is useful for Windows installs that handle reboots for you.
  [GH-687]
* builder/virtualbox: Nice errors if Packer can't write to
  the output directory.
* builder/virtualbox: ISO is ejected prior to export.
* builder/virtualbox: Checksum type can be "none" [GH-471]
* builder/vmware: Can now specify path to the Fusion application. [GH-677]
* builder/vmware: Checksum type can be "none" [GH-471]
* provisioner/puppet-masterless: Can now specify a `manifest_dir` to
  upload manifests to the remote machine for imports. [GH-655]

BUG FIXES:

* core: No colored output in machine-readable output. [GH-684]
* core: User variables can now be used for non-string fields. [GH-598]
* core: Fix bad download paths if the download URL contained a "."
  before a "/" [GH-716]
* core: "{{timestamp}}" values will always be the same for the entire
  duration of a build. [GH-744]
* builder/amazon: Handle cases where security group isn't instantly
  available. [GH-494]
* builder/virtualbox: don't download guest additions if disabled. [GH-731]
* post-processor/vsphere: Uploads VM properly. [GH-694]
* post-processor/vsphere: Process user variables.
* provisioner/ansible-local: all configurations are processed as templates
  [GH-749]
* provisioner/ansible-local: playbook paths are properly validated
  as directories, not files. [GH-710]
* provisioner/chef-solo: Environments are recognized. [GH-726]

## 0.4.1 (December 7, 2013)

IMPROVEMENTS:

* builder/amazon/ebs: New option allows associating a public IP with
  non-default VPC instances. [GH-660]
* builder/openstack: A "proxy\_url" setting was added to define an HTTP
  proxy to use when building with this builder. [GH-637]

BUG FIXES:

* core: Don't change background color on CLI anymore, making things look
  a tad nicer in some terminals.
* core: multiple ISO URLs works properly in all builders. [GH-683]
* builder/amazon/chroot: Block when obtaining file lock to allow
  parallel builds. [GH-689]
* builder/amazon/instance: Add location flag to upload bundle command
  so that building AMIs works out of us-east-1 [GH-679]
* builder/qemu: Qemu arguments are templated. [GH-688]
* builder/vmware: Cleanup of VMX keys works properly so cd-rom won't
  get stuck with ISO. [GH-685]
* builder/vmware: File cleanup is more resilient to file delete races
  with the operating system. [GH-675]
* provisioner/puppet-masterless: Check for hiera config path existence
  properly. [GH-656]

## 0.4.0 (November 19, 2013)

FEATURES:

* Docker builder: build and export Docker containers, easily provisioned
  with any of the Packer built-in provisioners.
* QEMU builder: builds a new VM compatible with KVM or Xen using QEMU.
* Remote ESXi builder: builds a VMware VM using ESXi remotely using only
  SSH to an ESXi machine directly.
* vSphere post-processor: Can upload VMware artifacts to vSphere
* Vagrant post-processor can now make DigitalOcean provider boxes. [GH-504]

IMPROVEMENTS:

* builder/amazon/all: Can now specify a list of multiple security group
  IDs to apply. [GH-499]
* builder/amazon/all: AWS API requests are now retried when a temporary
  network error occurs as well as 500 errors. [GH-559]
* builder/virtualbox: Use VBOX\_INSTALL\_PATH env var on Windows to find
  VBoxManage. [GH-628]
* post-processor/vagrant: skips gzip compression when compression_level=0
* provisioner/chef-solo: Encrypted data bag support [GH-625]

BUG FIXES:

* builder/amazon/chroot: Copying empty directories works. [GH-588]
* builder/amazon/chroot: Chroot commands work with shell provisioners. [GH-581]
* builder/amazon/chroot: Don't choose a mount point that is a partition of
  an already mounted device. [GH-635]
* builder/virtualbox: Ctrl-C interrupts during waiting for boot. [GH-618]
* builder/vmware: VMX modifications are now case-insensitive. [GH-608]
* builder/vmware: VMware Fusion won't ask for VM upgrade.
* builder/vmware: Ctrl-C interrupts during waiting for boot. [GH-618]
* provisioner/chef-solo: Output is slightly prettier and more informative.

## 0.3.11 (November 4, 2013)

FEATURES:

* builder/amazon/ebs: Ability to specify which availability zone to create
  instance in. [GH-536]

IMPROVEMENTS:

* core: builders can now give warnings during validation. warnings won't
  fail the build but may hint at potential future problems.
* builder/digitalocean: Can now specify a droplet name
* builder/virtualbox: Can now disable guest addition download entirely
  by setting "guest_additions_mode" to "disable" [GH-580]
* builder/virtualbox,vmware: ISO urls can now be https [GH-587]
* builder/virtualbox,vmware: Warning if shutdown command is not specified,
  since it is a common case of data loss.

BUG FIXES:

* core: Won't panic when writing to a bad pipe. [GH-560]
* builder/amazon/all: Properly scrub access key and secret key from logs.
  [GH-554]
* builder/openstack: Properly scrub password from logs [GH-554]
* builder/virtualbox: No panic if SSH host port min/max is the same. [GH-594]
* builder/vmware: checks if `ifconfig` is in `/sbin` [GH-591]
* builder/vmware: Host IP lookup works for non-C locales. [GH-592]
* common/uuid: Use cryptographically secure PRNG when generating
  UUIDs. [GH-552]
* communicator/ssh: File uploads that exceed the size of memory no longer
  cause crashes. [GH-561]

## 0.3.10 (October 20, 2013)

FEATURES:

* Ansible provisioner

IMPROVEMENTS:

* post-processor/vagrant: support instance-store AMIs built by Packer. [GH-502]
* post-processor/vagrant: can now specify compression level to use
  when creating the box. [GH-506]

BUG FIXES:

* builder/all: timeout waiting for SSH connection is a failure. [GH-491]
* builder/amazon: Scrub sensitive data from the logs. [GH-521]
* builder/amazon: Handle the situation where an EC2 instance might not
  be immediately available. [GH-522]
* builder/amazon/chroot: Files copied into the chroot remove destination
  before copy, fixing issues with dangling symlinks. [GH-500]
* builder/digitalocean: don't panic if erroneous API response doesn't
  contain error message. [GH-492]
* builder/digitalocean: scrub API keys from config debug output [GH-516]
* builder/virtualbox: error if VirtualBox version cant be detected. [GH-488]
* builder/virtualbox: detect if vboxdrv isn't properly setup. [GH-488]
* builder/virtualbox: sleep a bit before export to ensure the sesssion
  is unlocked. [GH-512]
* builder/virtualbox: create SATA drives properly on VirtualBox 4.3 [GH-547]
* builder/virtualbox: support user templates in SSH key path. [GH-539]
* builder/vmware: support user templates in SSH key path. [GH-539]
* communicator/ssh: Fix issue where a panic could arise from a nil
  dereference. [GH-525]
* post-processor/vagrant: Fix issue with VirtualBox OVA. [GH-548]
* provisioner/salt: Move salt states to correct remote directory. [GH-513]
* provisioner/shell: Won't block on certain scripts on Windows anymore.
  [GH-507]

## 0.3.9 (October 2, 2013)

FEATURES:

* The Amazon chroot builder is now able to run without any `sudo` privileges
  by using the "command_wrapper" configuration. [GH-430]
* Chef provisioner supports environments. [GH-483]

BUG FIXES:

* core: default user variable values don't need to be strings. [GH-456]
* builder/amazon-chroot: Fix errors with waitin for state change. [GH-459]
* builder/digitalocean: Use proper error message JSON key (DO API change).
* communicator/ssh: SCP uploads now work properly when directories
  contain symlinks. [GH-449]
* provisioner/chef-solo: Data bags and roles path are now properly
  populated when set. [GH-470]
* provisioner/shell: Windows line endings are actually properly changed
  to Unix line endings. [GH-477]

## 0.3.8 (September 22, 2013)

FEATURES:

* core: You can now specify `only` and `except` configurations on any
  provisioner or post-processor to specify a list of builds that they
  are valid for. [GH-438]
* builders/virtualbox: Guest additions can be attached rather than uploaded,
  easier to handle for Windows guests. [GH-405]
* provisioner/chef-solo: Ability to specify a custom Chef configuration
  template.
* provisioner/chef-solo: Roles and data bags support. [GH-348]

IMPROVEMENTS:

* core: User variables can now be used for integer, boolean, etc.
  values. [GH-418]
* core: Plugins made with incompatible versions will no longer load.
* builder/amazon/all: Interrupts work while waiting for AMI to be ready.
* provisioner/shell: Script line-endings are automatically converted to
  Unix-style line-endings. Can be disabled by setting "binary" to "true".
  [GH-277]

BUG FIXES:

* core: Set TCP KeepAlives on internally created RPC connections so that
  they don't die. [GH-416]
* builder/amazon/all: While waiting for AMI, will detect "failed" state.
* builder/amazon/all: Waiting for state will detect if the resource (AMI,
  instance, etc.) disappears from under it.
* builder/amazon/instance: Exclude only contents of /tmp, not /tmp
  itself. [GH-437]
* builder/amazon/instance: Make AccessKey/SecretKey available to bundle
  command even when they come from the environment. [GH-434]
* builder/virtualbox: F1-F12 and delete scancodes now work. [GH-425]
* post-processor/vagrant: Override configurations properly work. [GH-426]
* provisioner/puppet-masterless: Fix failure case when both facter vars
  are used and prevent_sudo. [GH-415]
* provisioner/puppet-masterless: User variables now work properly in
  manifest file and hiera path. [GH-448]

## 0.3.7 (September 9, 2013)

BACKWARDS INCOMPATIBILITIES:

* The "event_delay" option for the DigitalOcean builder is now gone.
  The builder automatically waits for events to go away. Run your templates
  through `packer fix` to get rid of these.

FEATURES:

* **NEW PROVISIONER:** `puppet-masterless`. You can now provision with
  a masterless Puppet setup. [GH-234]
* New globally available template function: `uuid`. Generates a new random
  UUID.
* New globally available template function: `isotime`. Generates the
  current time in ISO standard format.
* New Amazon template function: `clean_ami_name`. Substitutes '-' for
  characters that are illegal to use in an AMI name.

IMPROVEMENTS:

* builder/amazon/all: Ability to specify the format of the temporary
  keypair created. [GH-389]
* builder/amazon/all: Support the NoDevice flag for block mappings. [GH-396]
* builder/digitalocean: Retry on any pending event errors.
* builder/openstack: Can now specify a project. [GH-382]
* builder/virtualbox: Can now attach hard drive over SATA. [GH-391]
* provisioner/file: Can now upload directories. [GH-251]

BUG FIXES:

* core: Detect if SCP is not enabled on the other side. [GH-386]
* builder/amazon/all: When copying AMI to multiple regions, copy
  the metadata (tags and attributes) as well. [GH-388]
* builder/amazon/all: Fix panic case where eventually consistent
  instance state caused an index out of bounds.
* builder/virtualbox: The `vm_name` setting now properly sets the OVF
  name of the output. [GH-401]
* builder/vmware: Autoanswer VMware dialogs. [GH-393]
* command/inspect: Fix weird output for default values for optional vars.

## 0.3.6 (September 2, 2013)

FEATURES:

* User variables can now be specified as "required", meaning the user
  MUST specify a value. Just set the default value to "null". [GH-374]

IMPROVEMENTS:

* core: Much improved interrupt handling. For example, interrupts now
  cancel much more quickly within provisioners.
* builder/amazon: In `-debug` mode, the keypair used will be saved to
  the current directory so you can access the machine. [GH-373]
* builder/amazon: In `-debug` mode, the DNS is outputted.
* builder/openstack: IPv6 addresses supported for SSH. [GH-379]
* communicator/ssh: Support for private keys encrypted using PKCS8. [GH-376]
* provisioner/chef-solo: You can now use user variables in the `json`
  configuration for Chef. [GH-362]

BUG FIXES:

* core: Concurrent map access is completely gone, fixing rare issues
  with runtime memory corruption. [GH-307]
* core: Fix possible panic when ctrl-C during provisioner run.
* builder/digitalocean: Retry destroy a few times because DO sometimes
  gives false errors.
* builder/openstack: Properly handle the case no image is made. [GH-375]
* builder/openstack: Specifying a region is now required in a template.
* provisioners/salt-masterless: Use filepath join to properly join paths.

## 0.3.5 (August 28, 2013)

FEATURES:

* **NEW BUILDER:** `openstack`. You can now build on OpenStack. [GH-155]
* **NEW PROVISIONER:** `chef-solo`. You can now provision with Chef
  using `chef-solo` from local cookbooks.
* builder/amazon: Copy AMI to multiple regions with `ami_regions`. [GH-322]
* builder/virtualbox,vmware: Can now use SSH keys as an auth mechanism for
  SSH using `ssh_key_path`. [GH-70]
* builder/virtualbox,vmware: Support SHA512 as a checksum type. [GH-356]
* builder/vmware: The root hard drive type can now be specified with
  "disk_type_id" for advanced users. [GH-328]
* provisioner/salt-masterless: Ability to specfy a minion config. [GH-264]
* provisioner/salt-masterless: Ability to upload pillars. [GH-353]

IMPROVEMENTS:

* core: Output message when Ctrl-C received that we're cleaning up. [GH-338]
* builder/amazon: Tagging now works with all amazon builder types.
* builder/vmware: Option `ssh_skip_request_pty` for not requesting a PTY
  for the SSH connection. [GH-270]
* builder/vmware: Specify a `vmx_template_path` in order to customize
  the generated VMX. [GH-270]
* command/build: Machine-readable output now contains build errors, if any.
* command/build: An "end" sentinel is outputted in machine-readable output
  for artifact listing so it is easier to know when it is over.

BUG FIXES:

* core: Fixed a couple cases where a double ctrl-C could panic.
* core: Template validation fails if an override is specified for a
  non-existent builder. [GH-336]
* core: The SSH connection is heartbeated so that drops can be
  detected. [GH-200]
* builder/amazon/instance: Remove check for ec2-ami-tools because it
  didn't allow absolute paths to work properly. [GH-330]
* builder/digitalocean: Send a soft shutdown request so that files
  are properly synced before shutdown. [GH-332]
* command/build,command/validate: If a non-existent build is specified to
  '-only' or '-except', it is now an error. [GH-326]
* post-processor/vagrant: Setting OutputPath with a timestamp now
  always works properly. [GH-324]
* post-processor/vagrant: VirtualBox OVA formats now turn into
  Vagrant boxes properly. [GH-331]
* provisioner/shell: Retry upload if start command fails, making reboot
  handling much more robust.

## 0.3.4 (August 21, 2013)

IMPROVEMENTS:

* post-processor/vagrant: the file being compressed will be shown
  in the UI [GH-314]

BUG FIXES:

* core: Avoid panics when double-interrupting Packer.
* provisioner/shell: Retry shell script uploads, making reboots more
  robust if they happen to fail in this stage. [GH-282]

## 0.3.3 (August 19, 2013)

FEATURES:

* builder/virtualbox: support exporting in OVA format. [GH-309]

IMPROVEMENTS:

* core: All HTTP downloads across Packer now support the standard
  proxy environmental variables (`HTTP_PROXY`, `NO_PROXY`, etc.) [GH-252]
* builder/amazon: API requests will use HTTP proxy if specified by
  enviromental variables.
* builder/digitalocean: API requests will use HTTP proxy if specified
  by environmental variables.

BUG FIXES:

* core: TCP connection between plugin processes will keep-alive. [GH-312]
* core: No more "unused key keep_input_artifact" for post processors [GH-310]
* post-processor/vagrant: `output_path` templates now work again.

## 0.3.2 (August 18, 2013)

FEATURES:

* New command: `packer inspect`. This command tells you the components of
  a template. It respects the `-machine-readable` flag as well so you can
  parse out components of a template.
* Packer will detect its own crashes (always a bug) and save a "crash.log"
  file.
* builder/virtualbox: You may now specify multiple URLs for an ISO
  using "iso_url" in a template. The URLs will be tried in order.
* builder/vmware: You may now specify multiple URLs for an ISO
  using "iso_url" in a template. The URLs will be tried in order.

IMPROVEMENTS:

* core: built with Go 1.1.2
* core: packer help output now loads much faster.
* builder/virtualbox: guest_additions_url can now use the `Version`
  variable to get the VirtualBox version. [GH-272]
* builder/virtualbox: Do not check for VirtualBox as part of template
  validation; only check at execution.
* builder/vmware: Do not check for VMware as part of template validation;
  only check at execution.
* command/build: A path of "-" will read the template from stdin.
* builder/amazon: add block device mappings [GH-90]

BUG FIXES:

* windows: file URLs are easier to get right as Packer
  has better parsing and error handling for Windows file paths. [GH-284]
* builder/amazon/all: Modifying more than one AMI attribute type no longer
  crashes.
* builder/amazon-instance: send IAM instance profile data. [GH-294]
* builder/digitalocean: API request parameters are properly URL
  encoded. [GH-281]
* builder/virtualbox: dowload progress won't be shown until download
  actually starts. [GH-288]
* builder/virtualbox: floppy files names of 13 characters are now properly
  written to the FAT12 filesystem. [GH-285]
* builder/vmware: dowload progress won't be shown until download
  actually starts. [GH-288]
* builder/vmware: interrupt works while typing commands over VNC.
* builder/virtualbox: floppy files names of 13 characters are now properly
  written to the FAT12 filesystem. [GH-285]
* post-processor/vagrant: Process user variables. [GH-295]

## 0.3.1 (August 12, 2013)

IMPROVEMENTS:

* provisioner/shell: New setting `start_retry_timeout` which is the timeout
  for the provisioner to attempt to _start_ the remote process. This allows
  the shell provisioner to work properly with reboots. [GH-260]

BUG FIXES:

* core: Remote command output containing '\r' now looks much better
  within the Packer output.
* builder/vmware: Fix issue with finding driver files. [GH-279]
* provisioner/salt-masterless: Uploads work properly from Windows. [GH-276]

## 0.3.0 (August 12, 2013)

BACKWARDS INCOMPATIBILITIES:

* All `{{.CreateTime}}` variables within templates (such as for AMI names)
  are now replaced with `{{timestamp}}`. Run `packer fix` to fix your
  templates.

FEATURES:

* **User Variables** allow you to specify variables within your templates
  that can be replaced using the command-line, files, or environmental
  variables. This dramatically improves the portability of packer templates.
  See the documentation for more information.
* **Machine-readable output** can be enabled by passing the
  `-machine-readable` flag to _any_ Packer command.
* All strings in a template are now processed for variables/functions,
  so things like `{{timestamp}}` can be used everywhere. More features will
  be added in the future.
* The `amazon` builders (all of them) can now have attributes of their
  resulting AMIs modified, such as access permissions and product codes.

IMPROVEMENTS:

* builder/amazon/all: User data can be passed to start the instances. [GH-253]
* provisioner/salt-masterless: `local_state_tree` is no longer required,
  allowing you to use shell provisioner (or others) to bring this down.
  [GH-269]

BUG FIXES:

* builder/amazon/ebs,instance: Retry deleing security group a few times.
  [GH-278]
* builder/vmware: Workstation works on Windows XP now. [GH-238]
* builder/vmware: Look for files on Windows in multiple locations
  using multiple environmental variables. [GH-263]
* provisioner/salt-masterless: states aren't deleted after the run
  anymore. [GH-265]
* provisioner/salt-masterless: error if any commands exit with a non-zero
  exit status. [GH-266]

## 0.2.3 (August 7, 2013)

IMPROVEMENTS:

* builder/amazon/all: Added Amazon AMI tag support [GH-233]

BUG FIXES:

* core: Absolute/relative filepaths on Windows now work for iso_url
  and other settings. [GH-240]
* builder/amazon/all: instance info is refreshed while waiting for SSH,
  allowing Packer to see updated IP/DNS info. [GH-243]

## 0.2.2 (August 1, 2013)

FEATURES:

* New builder: `amazon-chroot` can create EBS-backed AMIs without launching
  a new EC2 instance. This can shave minutes off of the AMI creation process.
  See the docs for more info.
* New provisioner: `salt-masterless` will provision the node using Salt
  without a master.
* The `vmware` builder now works with Workstation 9 on Windows. [GH-222]
* The `vmware` builder now works with Player 5 on Linux. [GH-190]

IMPROVEMENTS:

* core: Colors won't be outputted on Windows unless in Cygwin.
* builder/amazon/all: Added `iam_instance_profile` to launch the source
  image with a given IAM profile. [GH-226]

BUG FIXES:

* builder/virtualbox,vmware: relative paths work properly as URL
  configurations. [GH-215]
* builder/virtualbox,vmware: fix race condition in deleting the output
  directory on Windows by retrying.

## 0.2.1 (July 26, 2013)

FEATURES:

* New builder: `amazon-instance` can create instance-storage backed
  AMIs.
* VMware builder now works with Workstation 9 on Linux.

IMPROVEMENTS:

* builder/amazon/all: Ctrl-C while waiting for state change works
* builder/amazon/ebs: Can now launch instances into a VPC for added protection [GH-210]
* builder/virtualbox,vmware: Add backspace, delete, and F1-F12 keys to the boot
  command.
* builder/virtualbox: massive performance improvements with big ISO files because
  an expensive copy is avoided. [GH-202]
* builder/vmware: CD is removed prior to exporting final machine. [GH-198]

BUG FIXES:

* builder/amazon/all: Gracefully handle when AMI appears to not exist
  while AWS state is propogating. [GH-207]
* builder/virtualbox: Trim carriage returns for Windows to properly
  detect VM state on Windows. [GH-218]
* core: build names no longer cause invalid config errors. [GH-197]
* command/build: If any builds fail, exit with non-zero exit status.
* communicator/ssh: SCP exit codes are tested and errors are reported. [GH-195]
* communicator/ssh: Properly change slash direction for Windows hosts. [GH-218]

## 0.2.0 (July 16, 2013)

BACKWARDS INCOMPATIBILITIES:

* "iso_md5" in the virtualbox and vmware builders is replaced with
  "iso_checksum" and "iso_checksum_type" (with the latter set to "md5").
  See the announce below on `packer fix` to automatically fix your templates.

FEATURES:

* **NEW COMMAND:** `packer fix` will attempt to fix templates from older
  versions of Packer that are now broken due to backwards incompatibilities.
  This command will fix the backwards incompatibilities introduced in this
  version.
* Amazon EBS builder can now optionally use a pre-made security group
  instead of randomly generating one.
* DigitalOcean API key and client IDs can now be passed in as
  environmental variables. See the documentatin for more details.
* VirtualBox and VMware can now have `floppy_files` specified to attach
  floppy disks when booting. This allows for unattended Windows installs.
* `packer build` has a new `-force` flag that forces the removal of
  existing artifacts if they exist. [GH-173]
* You can now log to a file (instead of just stderr) by setting the
  `PACKER_LOG_FILE` environmental variable. [GH-168]
* Checksums other than MD5 can now be used. SHA1 and SHA256 can also
  be used. See the documentation on `iso_checksum_type` for more info. [GH-175]

IMPROVEMENTS:

* core: invalid keys in configuration are now considered validation
  errors. [GH-104]
* core: all builders now share a common SSH connection core, improving
  SSH reliability over all the builders.
* amazon-ebs: Credentials will come from IAM role if available. [GH-160]
* amazon-ebs: Verify the source AMI is EBS-backed before launching. [GH-169]
* shell provisioner: the build name and builder type are available in
  the `PACKER_BUILD_NAME` and `PACKER_BUILDER_TYPE` env vars by default,
  respectively. [GH-154]
* vmware: error if shutdown command has non-zero exit status.

BUG FIXES:

* core: UI messages are now properly prefixed with spaces again.
* core: If SSH connection ends, re-connection attempts will take
  place. [GH-152]
* virtualbox: "paused" doesn't mean the VM is stopped, improving
  shutdown detection.
* vmware: error if guest IP could not be detected. [GH-189]

## 0.1.5 (July 7, 2013)

FEATURES:

* "file" uploader will upload files from the machine running Packer to the
  remote machine.
* VirtualBox guest additions URL and checksum can now be specified, allowing
  the VirtualBox builder to have the ability to be used completely offline.

IMPROVEMENTS:

* core: If SCP is not available, a more descriptive error message
  is shown telling the user. [GH-127]
* shell: Scripts are now executed by default according to their shebang,
  not with `/bin/sh`. [GH-105]
* shell: You can specify what interpreter you want inline scripts to
  run with `inline_shebang`.
* virtualbox: Delete the packer-made SSH port forwarding prior to
  exporting the VM.

BUG FIXES:

* core: Non-200 response codes on downloads now show proper errors.
  [GH-141]
* amazon-ebs: SSH handshake is retried. [GH-130]
* vagrant: The `BuildName` template propery works properly in
  the output path.
* vagrant: Properly configure the provider-specific post-processors so
  things like `vagrantfile_template` work. [GH-129]
* vagrant: Close filehandles when copying files so Windows can
  rename files. [GH-100]

## 0.1.4 (July 2, 2013)

FEATURES:

* virtualbox: Can now be built headless with the "Headless" option. [GH-99]
* virtualbox: <wait5> and <wait10> codes for waiting 5 and 10 seconds
  during the boot sequence, respectively. [GH-97]
* vmware: Can now be built headless with the "Headless" option. [GH-99]
* vmware: <wait5> and <wait10> codes for waiting 5 and 10 seconds
  during the boot sequence, respectively. [GH-97]
* vmware: Disks are defragmented and compacted at the end of the build.
  This can be disabled using "skip_compaction"

IMPROVEMENTS:

* core: Template syntax errors now show line and character number. [GH-56]
* amazon-ebs: Access key and secret access key default to
  environmental variables. [GH-40]
* virtualbox: Send password for keyboard-interactive auth [GH-121]
* vmware: Send password for keyboard-interactive auth [GH-121]

BUG FIXES:

* vmware: Wait until shut down cleans up properly to avoid corrupt
  disk files [GH-111]

## 0.1.3 (July 1, 2013)

FEATURES:

* The VMware builder can now upload the VMware tools for you into
  the VM. This is opt-in, you must specify the `tools_upload_flavor`
  option. See the website for more documentation.

IMPROVEMENTS:

* digitalocean: Errors contain human-friendly error messages. [GH-85]

BUG FIXES:

* core: More plugin server fixes that avoid hangs on OS X 10.7 [GH-87]
* vagrant: AWS boxes will keep the AMI artifact around [GH-55]
* virtualbox: More robust version parsing for uploading guest additions. [GH-69]
* virtualbox: Output dir and VM name defaults depend on build name,
  avoiding collisions. [GH-91]
* vmware: Output dir and VM name defaults depend on build name,
  avoiding collisions. [GH-91]

## 0.1.2 (June 29, 2013)

IMPROVEMENTS:

* core: Template doesn't validate if there are no builders.
* vmware: Delete any VMware files in the VM that aren't necessary for
  it to function.

BUG FIXES:

* core: Plugin servers consider a port in use if there is any
  error listening to it. This fixes I18n issues and Windows. [GH-58]
* amazon-ebs: Sleep between checking instance state to avoid
  RequestLimitExceeded [GH-50]
* vagrant: Rename VirtualBox ovf to "box.ovf" [GH-64]
* vagrant: VMware boxes have the correct provider type.
* vmware: Properly populate files in artifact so that the Vagrant
  post-processor works. [GH-63]

## 0.1.1 (June 28, 2013)

BUG FIXES:

* core: plugins listen explicitly on 127.0.0.1, fixing odd hangs. [GH-37]
* core: fix race condition on verifying checksum of large ISOs which
  could cause panics [GH-52]
* virtualbox: `boot_wait` defaults to "10s" rather than 0. [GH-44]
* virtualbox: if `http_port_min` and max are the same, it will no longer
  panic [GH-53]
* vmware: `boot_wait` defaults to "10s" rather than 0. [GH-44]
* vmware: if `http_port_min` and max are the same, it will no longer
  panic [GH-53]

## 0.1.0 (June 28, 2013)

* Initial release