Thank you for addressing these bugs so quickly! I’m afraid I didn’t do my due diligence testing the last prerelease, but this one seems to fix (ETA: does not fix) the only issue I’d encountered with 5.3.4 so far (a non-fatal ‘Script error’ RSOE when deleting tiddlers in my most highly-customized wiki… possibly related to the $data bug that #8333 resolves? I hadn’t documented it well enough to report—and in any case, it appears to be fixed now.) I will keep testing!
May I also suggest either pinning this announcement or editing the previous pinned thread with a link to the prerelease and perhaps the prerelease upgrade site?