Fatal error messages are now printed to both stderr and the logs. #17675
Bug Fixes
Foreign keys that point to a prefix of an existing index now work correctly. Previously, rows could be deleted from the referenced table without recognizing the constraint violation if rows in the referring table pointed to them. These foreign keys are also now shown correctly in SHOW CREATE TABLE. #17653
The crash reporter will now time out instead of waiting indefinitely trying to reach the server. #17689
AS OF SYSTEM TIME 0 is now a normal error instead of a panic. #17681
Fixed a panic caused by unclosed planNodes. #17281
3DES has been removed from the list of supported TLS cipher suites (it would never be selected because we require TLS 1.2, but it could be reported as a false positive by security scanners). #17237
Performance Improvements
Reduced unhelpful retries of slow commands. #17385
Doc Updates
Added an FAQ on why CockroachDB uses the PostgreSQL wire protocol instead of the MySQL protocol. #1845
Added a known limitation around dropping an index interleaved into another index on the same table. #1859