@thedrew I have good news. If you are currently using Parse Server 6 you should be able to use MongoDB 7 by upgrading to Parse Server 7.0.0-alpha.1 without any issues.
While 7.0.0.-alpha.1 is a new major release version that does contain a single breaking change compared to the latest release of Parse Server 6, it’s for a feature that most deployments are unlikely to use, see the release notes of 7.0.0-alpha.1 to find out whether it affects you.
We made that deliberately as the first alpha release so that developers who want to use MongoDB 7 but don’t have the time to address all breaking changes in the first stable release of Parse Server 7 can at least upgrade to the first alpha version.
Note that we do not plan to add official MongoDB 7 support to Parse Server 6, but if anyone from the community wants to open a PR (which should be easy by looking at the alpha release), we’ll be happy to review and merge.