Version Date: 

Jalview is a critical patch release that updates one of the open source components, log4j, that Jalview relies on. The update addresses the widely reported log4shell security vunerability. This release also addresses a bug in the occupancy calculation that occurs when working with alignments of more than 32,000 sequences.

New Features

  • Update library dependency: Log4j 2.16.0 (was log4j 1.2.x).


  • Updated building instructions

Issues Resolved

  • Occupancy calculation is incorrect for alignment columns with over -1+2^32 gaps (breaking filtering and display)
  • Caps on Hi-DPI scaling to prevent crazy scale factors being set with buggy window-managers (linux only)

Development Issues Resolved

  • Fixed non-fatal gradle errors during build