Bottles 66.11 was released as a quick fix for two Flatpak sandbox regressions affecting UMU Proton launches and custom MangoHud configurations, following the previous version 66.10. The update refines the cpak build system to ensure that development builds pull fresh container images, addressing issues that arose from the transition to Flatpak manifest v3. Creator Mirko Brombin has released three versions in five days, reflecting an agile response to bugs that were introduced in 66.10. Users can expect the update to roll out through their package manager or can access it directly from the Bottles GitHub releases

Bottles 66.11 Patches Flatpak Regressions for UMU Proton and MangoHud

Bottles 66.11 hit Flathub this morning as a rapid follow-up to 66.10, patching two Flatpak sandbox regressions that broke UMU Proton launches and ignored custom MangoHud configuration files. The update also refines the cpak build system by restricting container image pinning to the main branch, ensuring development and test builds pull fresh bases instead of stale references. Creator Mirko Brombin shipped the third version in five days to address issues introduced during the v66.10 migration to Flatpak manifest v3 and the decision to bundle the UMU launcher directly in the cpak images. Users on the official Flatpak distribution will see the update roll out through their package manager shortly, while cpak users can pull the corrected container image from the Bottles GitHub releases.

Bottles 66.11 Patches Flatpak Regressions for UMU Proton and MangoHud @ Linux Compatible