IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Also see Breaking changes in 6.6.
Breaking changes
- Authentication
- Disable BWC mode in TokenService by default #38881
Enhancements
- SQL
Bug fixes
- Authentication
- Engine
- Machine Learning
- SQL
- Fix merging of incompatible multi-fields #39560 (issue: #39547)
- Ignore UNSUPPORTED fields for JDBC and ODBC modes in SYS COLUMNS #39518 (issue: #39471)
- Use underlying exact field for LIKE/RLIKE #39443 (issue: #39442)
- Enforce JDBC driver - ES server version parity #38972 (issue: #38775)
- Fall back to using the field name for column label #38842 (issue: #38831)
- Normalized keywords shouldn’t be allowed for groupings and sorting [ISSUE] #35203
- Search
- Watcher