PDF export does not contain custom fields and some core values

Poor performance of work package autocompleter and /api/v3/work_packages in some scenarios

Poor performance of /api/v3/time_entries

Poor performance of mentions autocompleter

DATABASE_URL environment variable is not validated before usage

Work package activity not shown when using Polish language

Release deployed on Cloud production

Release candidate deployed on community

Release provided to Univention app center

Release downtime announced 3 days before deployment