The main change in this release is the use of the SHA256 hashing algorithm, which improves security and reduces code size. Win-win! Well, not quite, since the hashes change, so you'll have to update all your passwords. Fortunately at this point nobody is using HashMyPass (that I know of).
Credits:
- Geraint Luff for the SHA256 code
- Dan Davis for the hex-to-base24 one-liner