I had a great four weeks updating the software to use python 3, the new version of the language I write hydrus in. Overall, it went very well. The new client does not look different, but its guts are newer and neater. Some things run faster, and some long-time py2 bugs are gone. The release will come at the normal time tomorrow, but it will have special one-time update instructions for all existing users. It is important you read the release post.