sogo (5.6.0-1) unstable; urgency=medium

  The upgrade to SOGo 5.6.0 requires a database schema update. Please execute
  the script /usr/share/doc/sogo/sql-update-5.5.1_to_5.6.0.sh after upgrading
  the SOGo packages.

  Additionally, if you're using nginx as the SOGo webserver, be advised you
  will probably need to bump nginx buffer sizes for SOGo to operate correctly,
  as shown below:

    proxy_buffer_size 8k;
    proxy_buffers 4 64k;

 -- Jordi Mallach <jordi@debian.org>  Sun, 08 May 2022 23:24:52 +0200