https://www.insanelymac.com/forum/topic/362589-pre-release-macos-tahoe-265/
[pre-release] macOS Tahoe 26.5 - New Releases and Updates | InsanelyMac
new releases and updatesmacos tahoepreinsanelymac
https://doc.qubes-os.org/en/r4.3/user/downloading-installing-upgrading/testing.html
Testing new releases and updates — Qubes OS Documentation
Testing new Qubes OS releases and updates is one of the most helpful ways in which you can contribute to the Qubes OS Project. If you’re interested in helping...
new releases and updatesqubes ostestingdocumentation