github.com/xuyutom/docker@v1.6.0/docs/sources/release-notes.md (about) 1 page_title: Docker 1.x Series Release Notes 2 page_description: Release Notes for Docker 1.x. 3 page_keywords: docker, documentation, about, technology, understanding, release 4 5 # Release Notes 6 7 You can view release notes for earlier version of Docker by selecting the 8 desired version from the drop-down list at the top right of this page. 9 10 ## Version 1.5.0 11 (2015-02-03) 12 13 For a complete list of patches, fixes, and other improvements, see the 14 [merge PR on GitHub](https://github.com/docker/docker/pull/10286). 15 16 *New Features* 17 18 * [1.6] The Docker daemon will no longer ignore unknown commands 19 while processing a `Dockerfile`. Instead it will generate an error and halt 20 processing. 21 * The Docker daemon has now supports for IPv6 networking between containers 22 and on the `docker0` bridge. For more information see the 23 [IPv6 networking reference](/articles/networking/#ipv6). 24 * Docker container filesystems can now be set to`--read-only`, restricting your 25 container to writing to volumes [PR# 10093](https://github.com/docker/docker/pull/10093). 26 * A new `docker stats CONTAINERID` command has been added to allow users to view a 27 continuously updating stream of container resource usage statistics. See the 28 [`stats` command line reference](/reference/commandline/cli/#stats) and the 29 [container `stats` API reference](/reference/api/docker_remote_api_v1.17/#get-container-stats-based-on-resource-usage). 30 **Note**: this feature is only enabled for the `libcontainer` exec-driver at this point. 31 * Users can now specify the file to use as the `Dockerfile` by running 32 `docker build -f alternate.dockerfile .`. This will allow the definition of multiple 33 `Dockerfile`s for a single project. See the [`docker build` command reference]( 34 /reference/commandline/cli/#build) for more information. 35 * The v1 Open Image specification has been created to document the current Docker image 36 format and metadata. Please see [the Open Image specification document]( 37 https://github.com/docker/docker/blob/master/image/spec/v1.md) for more details. 38 * This release also includes a number of significant performance improvements in 39 build and image management ([PR #9720](https://github.com/docker/docker/pull/9720), 40 [PR #8827](https://github.com/docker/docker/pull/8827)) 41 * The `docker inspect` command now lists ExecIDs generated for each `docker exec` process. 42 See [PR #9800](https://github.com/docker/docker/pull/9800)) for more details. 43 * The `docker inspect` command now shows the number of container restarts when there 44 is a restart policy ([PR #9621](https://github.com/docker/docker/pull/9621)) 45 * This version of Docker is built using Go 1.4 46 47 > **Note:** 48 > Development history prior to version 1.0 can be found by 49 > searching in the [Docker GitHub repo](https://github.com/docker/docker). 50 51 ## Known Issues 52 53 This section lists significant known issues present in Docker as of release 54 date. It is not exhaustive; it lists only issues with potentially significant 55 impact on users. This list will be updated as issues are resolved. 56 57 * **Unexpected File Permissions in Containers** 58 An idiosyncrasy in AUFS prevents permissions from propagating predictably 59 between upper and lower layers. This can cause issues with accessing private 60 keys, database instances, etc. 61 62 For systems that have recent aufs version (i.e., `dirperm1` mount option can 63 be set), docker will attempt to fix the issue automatically by mounting 64 the layers with `dirperm1` option. More details on `dirperm1` option can be 65 found at [`aufs` man page](http://aufs.sourceforge.net/aufs3/man.html) 66 67 For complete information and workarounds see 68 [Github Issue 783](https://github.com/docker/docker/issues/783). 69 70 * **Docker Hub incompatible with Safari 8** 71 Docker Hub has multiple issues displaying on Safari 8, the default browser 72 for OS X 10.10 (Yosemite). Users should access the hub using a different 73 browser. Most notably, changes in the way Safari handles cookies means that the 74 user is repeatedly logged out. For more information, see the [Docker 75 forum post](https://forums.docker.com/t/new-safari-in-yosemite-issue/300).