WARNING: Version 5.6 of Elasticsearch has passed its EOL date.

This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.

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Elastic Docs ›Elasticsearch Reference [5.6] ›Release Notes

5.6.5 Release Notes

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5.6.5 Release Notes

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Also see Breaking changes in 5.6.

Enhancements

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Core
  • Fix classes that can exit #27518
Discovery
  • Stop responding to ping requests before master abdication #27329 (issue: #27328)
Internal
  • TemplateUpgradeService should only run on the master #27294
Plugin Repository S3
Search
  • fix unnecessary logger creation #27349
Snapshot/Restore
  • Remove XContentType auto detection in BlobStoreRepository #27480
  • Fixed references to Multi Index Syntax #27283

Bug fixes

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Cluster
  • Properly format IndexGraveyard deletion date as date #27362
Core
  • Avoid NPE when getting build information #27442
  • Correctly encode warning headers #27269 (issue: #27244)
Engine
  • Reset LiveVersionMap on sync commit #27534 (issue: #27516)
  • Carry over version map size to prevent excessive resizing #27516 (issue: #20498)
  • Die with dignity while merging #27265 (issue: #19272)
Mapping
  • Fix dynamic mapping update generation. #27467
Network
  • Throw UOE from compressible bytes stream reset #27564 (issue: #24927)
  • Bubble exceptions when closing compressible streams #27542 (issue: #27540)
  • Add CompressibleBytesOutputStream for compression #27540 (issues: #23941, #24927, #27525)
  • Fixed ByteBuf leaking in org.elasticsearch.http.netty4.Netty4HttpRequestHandler #27222 (issues: #3, #4, #5, #6)
Plugin Lang Painless
  • Painless: Fix errors allowing void to be assigned to def. #27460 (issue: #27210)
Plugin Repository GCS
  • Create new handlers for every new request in GoogleCloudStorageService #27339 (issue: #27092)
Snapshot/Restore
  • Do not swallow exception in ChecksumBlobStoreFormat.writeAtomic() #27597
  • Delete shard store files before restoring a snapshot #27476 (issues: #20220, #26865)
  • Fix snapshot getting stuck in INIT state #27214 (issue: #27180)
  • Snapshot/Restore: better handle incorrect chunk_size settings in FS repo #26844 (issue: #26843)

Upgrades

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Plugin Discovery EC2
Plugin Discovery GCE
  • Update Google SDK to version 1.23.0 #27381 (issue: #26636)
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