Until now, I've been using wyupdate with autoupdater since 2012 without issue. I started getting this error today (2022-01-12).
I started using password/encryption as soon as it became available, as our use case is one that required it to pass audit. I have tried it both encrypted and unencrypted and I see the same issue, yes I have rebuilt, and re-uploaded numerous times, disabled A/V, etc. following suggestions from this and other threads.
I am attempting to use the .net 4 version as I will need tls 1.3 soon. I've even pulled the repository and stepped through the code. The _CompressionMethod_FromZipFile being returned from the file is not enumerated in ZipEntry.CompressionMethod, but it is int value 99.