- Added PostgreSQL 9.4+ as an optional primary datastore alongside Cassandra.
- Removed the deprecated /consumers/:consumer/keyauth/ and /consumers/:consumer/basicauth/ routes (breaking change); new routes use the plugin names.
- Added multiple new plugin capabilities: LDAP authentication, StatsD logging, JWT RS256 signing, ACL header propagation, OAuth2 RFC‑6749 error compliance, and multipart request handling.