Modern applications require modern security. Lots of hashing algorithms (did anyone mention md5?) are really outdated. I would want built in support for three of the currently most used and most secure hashing algorithms:
bcrypt, scrypt and finally PBKDF2 (actually the only one of these that really is standardized).https://www.usenix.org/legacy/event/usenix99/provos/provos_html/
(Title should have read "Add the bcrypt, scrypt and PBKDF2 hashing algorithms").