This release was made to improve performances on our production instances, supporting a cluster of web backends and a new cache system. Our demo instance got some speed improvements for end-users (read speed improvied a lot with the cache) and our Machine learning tasks (write speed improved by 14x on some parts).


  • New cache system using Cachalot
  • Use python 3.7 and gunicorn on our production systems


Some improvements and bug fixes were also made on the frontend:

  • Consistent header when browsing a corpus and elements: the Actions menu is now always available on the upper right side.
  • Simplifications to start a new workflow on a project.
  • New unit tests system to detect regressions as early as possible.


The import from Transkribus is now fully made asynchronously and supports creating sub elements.