New features
- ALTER SESSION RESET command (CORE-5832)
- Virtual table RDB$CONFIG (CORE-3708)
- Report replica mode through isc_database_info, MON$DATABASE and SYSTEM context (CORE-6474)
- Ability to trace session management commands (CORE-6469)
- INT128 as explicit basic type for high precision numerics (CORE-6342)
More details can be found in the CHANGELOG.