• Fix and update Composer autoload
• Add plugin hook for document attachments
• Improve board column header alignment
• Ignore project_id for file attachments download URL (already checked elsewhere)
• Update translations
• Clarify meaning of LDAP_USER_CREATION in config.default.php
• Fix wrong internal link when converting a subtask to task (MySQL only)
• Use the overridable Markdown parser for previews
• Update call_user_func_array() calls to be compatible with PHP 8
• Enable external group synchronization deactivation
• Fix tooltip shifting on long descriptions
• Add position argument to API procedure updateSubtask()
• Bump Docker image to Alpine 3.15.0
• Bump symfony/stopwatch to 5.4.0
• Bump pimple/pimple to 3.5.0