Realtime

New in Tiki25. Use built-in websockets server within Tiki to enable realtime communication features of the app.

At first for Tiki Manager Package, but will later be added to other Tiki Features.

Powered by https://packagist.org/packages/cboden/Ratchet and https://reactphp.org

This will require a special server configuration (possibly root access). tiki-check.php will indicate if server is correctly set up.

Initial commit: https://gitlab.com/tikiwiki/tiki/-/merge_requests/1638