Prepare release 9.1.0

Author: NelsonVides

CHANGELOG.md

@@ -7,6 +7,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## main
 
+## v9.1.0
+
+### Added
+
+- Implement basic [RFC8914](https://datatracker.ietf.org/doc/rfc8914/) extended errors ([#290](https://github.com/dnsimple/erldns/pull/290))
+- Add support for standard DNS zone files (RFC-style) in addition to JSON format, this also improves loading times and initialisation ([#291](https://github.com/dnsimple/erldns/pull/291))
+- Admin API now adds extensibility points to include custom HTTP handlers and TLS configuration ([#294](https://github.com/dnsimple/erldns/pull/294))
+
+### Updated
+
+- Update root hints with current values and IPv6 records ([#292](https://github.com/dnsimple/erldns/pull/292))
+- Update dependencies ([#299](https://github.com/dnsimple/erldns/pull/299))
+
 ## v9.0.0
 
 ### Added