Major improvements

• Add DB migration functionality and remove need to manually set up database schema on first install
• Allow choice of zone replication type (master or native)
• Enable classless in-addr.arpa delegation by allowing PTR records in forward zones and CNAME records in reverse zones. Also enable forward slash in zone name to allow for naming conventions like 129.128/26.2.0.192.in-addr.arpa.
• DNSSEC support [requires PowerDNS 4.1+] (with thanks to @christianbur for advice and testing)
• Support for alternative user data sources with details passed from the web server (contributed by @TiagoTT)
• Management of local user accounts
• Zone deletion and recovery
• Config option to turn on/off auto-creation of reverse records (contributed by @atj)
• Config option to enforce change reviews for all users (contributed by @TiagoTT)

Minor improvements

• Add CAA, DNSKEY, DS, NAPTR, SSHFP and TLSA record types
• Add DNAME record type (contributed by @maltris)
• Check user is active before allowing access (instead of relying on the web server being configured to do this)

Bug fixes

• Correctly split TXT records when exporting
• Fix display issue when a pending update involves a now-deleted RRset
• Fix bug triggered when deleting an RR from an RRset that is being added
• Include non-root NS records when splitting a zone
• Fix HTTP redirects not working on some platforms (contributed by @alexjfisher)
• Fix api_url in config-sample.ini (contributed by @alexjfisher)
• Add missing required PHP dependencies to README.md (contributed by @Learloj)
• Regression fixes (contributed by @Learloj)

Compatibility fixes

• Perform DELETE actions before REPLACE actions to avoid situations that trigger a singleton record validation check to fail in PowerDNS 4.1+

A huge thank you to all bug reporters, feature requesters and contributors who made this release possible!