Wiredtiger

See [JIRA changelog](https://jira.mongodb.org/projects/WT/versions/34753) for a full listing of tickets included in WiredTiger 11.2.0 release.

See [JIRA changelog](https://jira.mongodb.org/projects/WT/versions/34081) for a full listing of tickets included in WiredTiger 11.1.0 release.

See the [upgrading documentation](https://source.wiredtiger.com/11.0.0/upgrading.html) for details of API and behavior changes.

See [JIRA changelog](https://jira.mongodb.org/projects/WT/versions/32518) for a full listing.

See the upgrading documentation for details of API and behavior changes.

Significant changes:
* WT-4008 Add ARM NEON support for row search operations
* WT-5083 Add mips64el support
* WT-6598 Add new API allowing changing dhandle hash bucket size
* WT-4427 Make WiredTiger timestamps always on and 8 bytes
* WT-4642 Store transaction IDs durably
* WT-5225 Create persistent file for History store
* WT-5500 Implement new history store format
* WT-6677 Map read committed/uncommitted isolation to read-only transaction
* WT-6710 Change default transaction isolation to snapshot
* WT-4833 Drop support for Python2
* WT-6410 Remove WT_SESSION.rebalance
* WT-6528 Remove offensive terminology in WiredTiger API and source code
* WT-6674 Remove Async API code and documentation
* WT-6675 Remove WiredTiger Java language API and documentation
* WT-6678 Remove Huffman Encoding support for Keys
* WT-6713 Remove transaction support from custom data sources
* WT-7295 Compatibility with older versions of WT

See JIRA changelog for a full listing:
https://jira.mongodb.org/projects/WT/versions/24082

See the upgrading documentation for details of API and behavior changes.

Significant changes:
* WT-3968 Use compression ratio to tune page sizes
* WT-4156 Add a new salvage API option to wiredtiger_open
* WT-4192 Remove support for raw compression in WiredTiger
* WT-4426 Change WiredTiger data format to optionally include timestamps in cells
* WT-4447 Add a quota like system to manage I/O per subsystem
* WT-4494 Support import of of standalone WiredTiger files
* WT-4670 Remove support for LevelDB APIs in WiredTiger
* WT-4765 Remove support for Helium/Levyx data sources in WiredTiger
* WT-4803 Implement file_max configuration for Cache Overflow mechanism
* WT-4913 Fix the Windows CRC32 on blocks that aren't 8B aligned and/or multiples of 8B

See JIRA changelog for a full listing:
https://jira.mongodb.org/projects/WT/versions/21117
https://jira.mongodb.org/projects/WT/versions/22515

See the upgrading documentation for details of API and behavior changes.

Significant changes:
* WT-3968 Use compression ratio to tune page sizes
* WT-4156 Add a new salvage API option to wiredtiger_open
* WT-4192 Remove support for raw compression in WiredTiger
* WT-4426 Change WiredTiger data format to optionally include timestamps in cells
* WT-4447 Add a quota like system to manage I/O per subsystem
* WT-4670 Remove support for LevelDB APIs in WiredTiger
* WT-4765 Remove support for Helium/Levyx data sources in WiredTiger

See JIRA changelog for a full listing:
https://jira.mongodb.org/projects/WT/versions/21117