See Tracker item CORE-4556.

Data pages are now allocated as a group of sequential ordered pages (extents).

See Tracker item CORE-4445.

The main database file extends faster when physical backup state changes from stalled to merge.

See Tracker item CORE-4443.

Linux systems that support “fast file growth” can now use it.

See Tracker item CORE-4432.

Attachments no longer block others when the allocation table is read for the first time.

See Tracker item CORE-4431.

Contention has been reduced for the allocation table lock while database is in stalled physical backup state.