* Update active version list in .release/versions.hcl
* Remove nightly tests for 1.17.x
* Add nightly tests for 1.20.x
* Gate nightly tests for 1.19.x to Enterprise only
* Update CHANGELOG.md
* Explicitly set 'Content-Type' header to mitigate XSS vulnerability. [[GH-21704](https://github.com/hashicorp/consul/issues/21704)]
* Implement HTML sanitization for user-generated content to prevent XSS attacks in the UI. [[GH-21711](https://github.com/hashicorp/consul/issues/21711)]
* UI: Remove codemirror linting due to package dependency [[GH-21726](https://github.com/hashicorp/consul/issues/21726)]
* ui: Pin a newer resolution of Braces [[GH-21710](https://github.com/hashicorp/consul/issues/21710)]
* ui: Pin a newer resolution of Codemirror [[GH-21715](https://github.com/hashicorp/consul/issues/21715)]
* ui: Pin a newer resolution of Markdown-it [[GH-21717](https://github.com/hashicorp/consul/issues/21717)]
* ui: Pin a newer resolution of ansi-html [[GH-21735](https://github.com/hashicorp/consul/issues/21735)]
FEATURES:
* grafana: added the dashboards service-to-service dashboard, service dashboard, and consul dataplane dashboard [[GH-21806](https://github.com/hashicorp/consul/issues/21806)]
* server: remove v2 tenancy, catalog, and mesh experiments [[GH-21592](https://github.com/hashicorp/consul/issues/21592)]
IMPROVEMENTS:
* security: upgrade ubi base image to 9.4 [[GH-21750](https://github.com/hashicorp/consul/issues/21750)]
* connect: Add Envoy 1.31 and 1.30 to support matrix [[GH-21616](https://github.com/hashicorp/consul/issues/21616)]
BUG FIXES:
* jwt-provider: change dns lookup family from the default of AUTO which would prefer ipv6 to ALL if LOGICAL_DNS is used or PREFER_IPV4 if STRICT_DNS is used to gracefully handle transitions to ipv6. [[GH-21703](https://github.com/hashicorp/consul/issues/21703)]