Slitherine

The Beta Slitherine website still uses the same forum software, I think.

The new website/forum rejects .txt as a valid file extension for uploads. These are needed for dxdiag and logfiles in beta testing. The workaround is still to convert the file to a .zip and upload that I suppose...

There are no changes in the forum. It's the website, including the Member's Area, which is different.
Regarding the .txt files, it's correct, you have to zip a txt file in order to attach it to your message.