v2.8.4 is now available for Windows and Linux. I'll build an Apple OSX version soon. Hopefully @darealshinji will be kind enough to build DEB packages when he gets some time.
https://www.quickhash-gui.org/downloads/
v2.8.4. includes only a few fixes but they are important. Notably the Expected Hash Value field was not working as it should in v2.8.3 and the Text tab was mis-computing hashes due to an unnoticed change to how strings were hashed. That was reverted.