13.x
add connection established event
[12.x] remove `@return` docblocks on constructors (#55076)
use promoted properties for Database events (#53848)
Refactor - Events to classes
[13.x] Add name to MigrationStarted/MigrationEnded events (#60059)
[12.x] add MigrationSkipped event (#58167)
[8.x] Add method to MigrationsStarted/MigrationEnded events (#40334)
add trailling commas in multline method signatures (#56992)
[13.x] Add Postgres transaction pooler support (#60425)
Converted core events to objects.
Add event TransactionCommitting (#44608)