======================= Upgrade to Nextcloud 27 ======================= System requirements ------------------- * PHP 8.2 is recommended over PHP 8.1. * PHP 8.0 is deprecated and might be removed in Nextcloud 28. Exposed system address book --------------------------- Nextcloud 27 exposes the :ref:`system address book`. Restrict the enumeration settings if your users should not see other users. Web server configuration ------------------------ * The recommended :ref:`nginx configuration` changed as Nextcloud now supports module javascript with the ``.mjs`` and audio files with ``.ogg`` / ``.flac`` extension, make sure to add these extensions to the list of static files.