<!-- Release notes generated using configuration in .github/release.yml at master -->
What's Changed
Bug fixes 🕷
* Prevent a possible infinite loop in WidgetDecoration.base_widget by rsekman in https://github.com/urwid/urwid/pull/880
* ScrollBar will check wrapped widgets for SupportsScroll (Fixes 878) by rsekman in https://github.com/urwid/urwid/pull/879
New Contributors
* rsekman made their first contribution in https://github.com/urwid/urwid/pull/880
**Full Changelog**: https://github.com/urwid/urwid/compare/2.6.11...2.6.12