The Joomla fork diverged from upstream around Dec 2023 (commit 7c2c58c5) and has 18 Joomla-specific commits on top. Meanwhile, upstream has continued with 25+ commits including major refactoring. The two have diverged significantly.
File: src/Client/Updater.php
Joomla added lines to recreate the SignatureVerifier and UniversalVerifier after each root metadata update in the updateRoot() loop (between steps 5.3.7 and 5.3.8 of the TUF spec).
