Removed capability to store PEM-encoded public key.  Very little was able to create a compatible key, too often with extra ASN.1 encoding parameters (full DER-encoding) that screwed up use later.  Also the whole ‘pick your own curve’ thing; people may have assumed (incorrectly) that what was defined in their key was what was used: this was never the case.
Enable automatic redirects upon authentication.
Required changes for authantication.
Basic SRP implementation prototype.