- **Module Manager About, Change log tab:** `about_changelog_tab.tpl` now uses `mas_changelog_html` (was `mas_ah_changelog_html`, so the tab always showed the fallback message).<br />- **Changelog source:** `GetChangeLog()` and bundled `Mas_Module_Docs::changelogHtml()` read `to-do/CHANGELOG.md` when root `CHANGELOG.md` is absent.<br />- **Help/About tab variables:** Extra Smarty assigns (changelog, MAMSRegistration flag) are passed to nested tab includes.<br />- **About email display:** mailto links no longer use `escape:'url'` (which showed `@` as `%40` in the admin UI).<br />