Joomla 5 Full Package - Version 5.1.0

Implemented the secure TUF update mechanism (#42799).

Added a light and dark mode switch to the administrator interface (#42221).

Added a Welcome Guided Tour for new users (#41659).

Added trailing-slash URL behaviour to the system SEF plugin (#42702).

Added a notice to the Global Configuration about additional options available in the system SEF plugin (#42832).

Added required-field handling and support for checkboxes, radio buttons and selection lists as Guided Tour targets (#40994).

Added regular-expression validation for form fields (#42657).

Added the Generic type to Schema.org integration (#42699).

Added the Article type to Schema.org integration (#42402).

Added the ability to manipulate custom-field forms in the same way as category forms (#42510).

Added a main region and improved module support on the Cassiopeia error page (#42719).

Added a “New Article” button to the blog view (#39506).

Added support for subcategory levels in the Contacts category view (#41618).

Added a command-line command for managing Joomla core update channels (#42597).

Added the update:extension:check command for checking extension updates from the command line (#42844).

Added a command-line command for updating the database structure (#42568).

Added toolbar buttons on the language installation page for direct access to language management views (#42610).

Added buttons for moving Subform rows up and down (#42334).

Added a rebuild button to the Tags component (#42586).

Added a global Form Layout option for custom fields (#37320).

Added SVG image support to the Banners module (#41854).

Significantly improved the administrator interface in dark mode (#42986).

Improved SEF URL behaviour for addresses containing index.php (#42704).

Updated the Jooa11y Accessibility Checker plugin to a newer version of Sa11y (#42780).

Replaced Bootstrap modals with the new administrator dialog component for scheduled tasks, extension changelogs, batch processing, plugins, modules, media, categories, contacts, news feeds and content history (#42746, #42453, #42355, #42447, #42423, #42288, #42293, #42326, #42327, #42328, #42454).

Updated Font Awesome to version 6.5.1 (#42721).

Updated the TinyMCE editor to version 6.8.3 (#42930).

Changed the value column in the #__fields_values table from TEXT to MEDIUMTEXT (#42606).

Renamed and improved the core:update:check command (#42594).

Improved the output of the Joomla core update command (#42601).

Converted major administrator and system modules to use Joomla service providers (#42214, #42845, #42866, #42853, #42852, #42990, #42838, #42827, #42801, #42781, #42792, #42814, #42886, #42883, #42877, #42735, #42215, #42898, #42899, #42910, #42929, #42987).

Improved the display of long template descriptions (#42651).

Improved the removal of child extensions installed as part of a package (#42607).

Improved data filtering in API web services (#42519).

Improved API web-service event classes (#42092).

Changed the Media Manager to use a generic icon for documents (#42527).

Rewrote the multilingual associations component com_associations in vanilla JavaScript (#42771).

Added event classes for Page Cache plugin events (#41965).

Changed batch processing to load the appropriate plugin group when tasks are executed (#39013).

Added several JavaScript improvements (#42756, #42755, #42776, #42784).

Updated the automated code-style fixing tool (#42603).

Improved error handling when writing files during a Joomla update (#41096).

Removed potentially unsafe attributes from images in HTML emails (#42448).

Fixed Action Log notification emails containing HTML links (#40033).