vitess.io/vitess@v0.16.2/changelog/12.0/12.0.4/release_notes.md (about)

     1  # Release of Vitess v12.0.4
     2  ## Major Changes
     3  
     4  ### Cluster management
     5  
     6  A race condition #9819 that happens when running `PlannedReparentShard` was fixed through #9859.
     7  
     8  ### Query Serving
     9  
    10  Two major bugs on `UNION` are fixed via this release. The first one, #10257, solves an issue around the `UNION` executor,
    11  where the execution context was not handled properly in a concurrent environment. The second one, #9945, was detected by
    12  one of our `UNION` tests becoming flaky in the CI, it got solved by #9979, which focuses on improving the concurrency of `UNION`
    13  executions.
    14  
    15  A panic when ordering results in descending order on a `hash` vindex is also fixed. The original issue can be found here #10019. 
    16  
    17  ## Changelog
    18  
    19  ### Bug fixes
    20  #### Cluster management
    21  * Fix the race between PromoteReplica and replication manager tick #9859
    22  #### Query Serving
    23  * Route explain table plan to the proper Keyspace #10028
    24  * Multiple fixes to UNION planning and execution #10344
    25  
    26  
    27  The release includes 5 commits (excluding merges)
    28  
    29  Thanks to all our contributors: @GuptaManan100, @frouioui, @systay