Note: the old trac git server is already disabled and the new
https://github.com/sagemath/sage is still locked for migration, so you will only be able to get the branch from there starting tomorrow (Monday). If you are dying to see the new version you can temporarily get it from my own fork at github.com:vbraun/sage, but I'd recommend waiting until tomorrow.
As always, you can get the latest beta version from the "develop" git branch. Alternatively, the self-contained source tarball is at
http://www.sagemath.org/download-latest.html
200557e00c3 (origin/develop, tag: 9.8.rc1) Updated SageMath version to 9.8.rc1
2d3c71b03b2 Trac #34942: GH Actions: Remove pull_request triggers for portability workflows
1df8f128303 Trac #34935: Followup to #34547: fix emacs sage-shell-mode
77173ef550c Trac #34873: Deprecate sage.homology.graded_resolution.GradedFreeResolution
9116c5584f9 (tag: 9.8.rc0, trac/develop) Updated SageMath version to 9.8.rc0