Translations:Akonadi/Postgres update/16/en

• openSUSE Leap 15.2: Akonadi fails to start after upgrading to PostgreSQL 12 with the same error as in https://bugs.archlinux.org/task/64562. Workaround: Install PostgreSQL 11, set it as default (with update-alternatives), and upgrade to PostgreSQL 11.
• Upgrading PostgreSQL (Arch linux wiki)
• Upgrading PostgreSQL (Official PostgreSQL documentation)