Yes, the changelog was correct, but not the md5sum files, which slackpkg relies on!
Not a problem as I pulled in the md5sum files from the slarm64 site, and all then worked as expected, but I just thought I'd flag it up in case anyone else had an issue with it.
BTW, the latest updates have got wifi back fully working on my Pi400, after a long period when it didn't! I haven't changed anything here, and it appeared to be a networkmanager issue, as iwconfig could find wifi, but networkmanager couldn't! All working fine now!
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Pete