The 1st 0.94.19 RC is available for download at 
http://people.apache.org/~larsh/hbase-0.94.19-rc0/
Signed with my code signing key: C7CFE328

HBase 0.94.19 is a bug fix release with 29 bug and test fixes:
Bug
    [HBASE-10118] - Major compact keeps deletes with future timestamps
    [HBASE-10312] - Flooding the cluster with administrative actions leads to 
collapse
    [HBASE-10533] - commands.rb is giving wrong error messages on exceptions
    [HBASE-10766] - SnapshotCleaner allows to delete referenced files
    [HBASE-10805] - Speed up KeyValueHeap.next() a bit
    [HBASE-10807] - -ROOT- still stale in table.jsp if it moved
    [HBASE-10845] - Memstore snapshot size isn't updated in 
DefaultMemStore#rollback()
    [HBASE-10847] - 0.94: drop non-secure builds, make security the default
    [HBASE-10848] - Filter SingleColumnValueFilter combined with NullComparator 
does not work
    [HBASE-10966] - RowCounter misinterprets column names that have colons in 
their qualifier
    [HBASE-10991] - Port HBASE-10639 'Unload script displays wrong counts (off 
by one) when unloading regions' to 0.94
    [HBASE-11003] - ExportSnapshot is using the wrong fs when staging dir is 
not in fs.defaultFS
    [HBASE-11030] - HBaseTestingUtility.getMiniHBaseCluster should be able to 
return null
    [HBASE-10921] - Port HBASE-10323 'Auto detect data block encoding in 
HFileOutputFormat' to 0.94 / 0.96

Test
    [HBASE-10782] - Hadoop2 MR tests fail occasionally because of 
mapreduce.jobhistory.address is no set in job conf
    [HBASE-10969] - TestDistributedLogSplitting fails frequently in 0.94.
    [HBASE-10982] - 
TestZKProcedure.testMultiCohortWithMemberTimeoutDuringPrepare fails frequently 
in 0.94
    [HBASE-10987] - Increase timeout in TestZKLeaderManager.testLeaderSelection
    [HBASE-10988] - Properly wait for server in TestThriftServerCmdLine
    [HBASE-10989] - TestAccessController needs better timeout
    [HBASE-10996] - TestTableSnapshotInputFormatScan fails frequently on 0.94
    [HBASE-11010] - TestChangingEncoding is unnecessarily slow
    [HBASE-11017] - TestHRegionBusyWait.testWritesWhileScanning fails 
frequently in 0.94
    [HBASE-11022] - Increase timeout for 
TestHBaseFsck.testSplitDaughtersNotInMeta
    [HBASE-11024] - TestSecureLoadIncrementalHFilesSplitRecovery should wait 
longer for ACL table
    [HBASE-11029] - Increase wait in TestSplitTransactionOnCluster.split
    [HBASE-11037] - Race condition in TestZKBasedOpenCloseRegion
    [HBASE-11040] - TestAccessController, TestAccessControllerFilter, and 
TestTablePermissions need to wait longer to ACL table
    [HBASE-11042] - TestForceCacheImportantBlocks OOMs occasionally in 0.94

Notable is HBASE-10847, which drops non-secure builds and make security the 
default. From here on there is only one release build of HBase 0.94.

The list of changes is also available here: 
https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310753&version=12326287

Here're the jenkins runs for this RC: 
https://builds.apache.org/job/HBase-0.94.19/18/

Please try out the RC, check out the doc, take it for a spin, etc, and vote 
+1/-1 by EOD April 27th on whether we should release this as 0.94.19.

Thanks.

-- Lars

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