Add Trino Gateway 16 release notes

Author: mosabua

docs/release-notes.md

@@ -2,6 +2,65 @@
 
 ## 2025
 
+### Trino Gateway 16 (12 Sep 2025) { id="16" }
+
+Artifacts:
+
+* [JAR file gateway-ha-16-jar-with-dependencies.jar](https://repo1.maven.org/maven2/io/trino/gateway/gateway-ha/16/gateway-ha-16-jar-with-dependencies.jar)
+* Container image `trinodb/trino-gateway:16`
+* Source code as
+  [tar.gz](https://github.com/trinodb/trino-gateway/archive/refs/tags/16.tar.gz)
+  or [zip](https://github.com/trinodb/trino-gateway/archive/refs/tags/16.zip)
+* [Trino Helm chart](https://trinodb.github.io/charts/) `trino/trino-gateway` version `1.16.0`
+
+Changes:
+
+**General**
+
+* [:warning: Breaking change:](#breaking) Require JDK 24 to run Trino Gateway
+  and use it in the container image.
+  ([#727](https://github.com/trinodb/trino-gateway/pull/727))
+* Update database testing and therefore support to PostgreSQL version 17.
+  ([#753](https://github.com/trinodb/trino-gateway/pull/753))
+* Allow configuration of a default routing group and error propagation to client
+  tools. ([#687](https://github.com/trinodb/trino-gateway/pull/687))
+* Add an option to add the `X-Forwarded-Proto` HTTP header when fetching cluster
+  stats to enable Trino Gateway use with clusters behind a TLS-terminations load
+  balancer.
+  ([#729](https://github.com/trinodb/trino-gateway/pull/729))  
+* Improve error propagation when using an external routing service.
+  ([#687](https://github.com/trinodb/trino-gateway/pull/687))
+* Add support for HTTP header modifications by an external routing service.
+  ([#646](https://github.com/trinodb/trino-gateway/pull/646))
+* Add cluster activation status metric and emit to `/v1/jmx`.
+  ([#673](https://github.com/trinodb/trino-gateway/pull/673))
+* Improve properties handling for JDBC connection to the database.
+  ([#651](https://github.com/trinodb/trino-gateway/pull/651))
+* [:warning: Breaking change:](#breaking) Rename the task delay configuration
+  for the monitor from `taskDelaySeconds` to `taskDelay` and to support Airlift
+  duration string instead of second values only.
+  ([#695](https://github.com/trinodb/trino-gateway/pull/695))
+
+**UI**
+
+* Display routing group name in the query history page.
+  ([#607](https://github.com/trinodb/trino-gateway/pull/607))
+* Rename `RoutedTo` to `Name` field in query history page.
+  ([#639](https://github.com/trinodb/trino-gateway/pull/639))
+* Use external URL for query routing history display.
+  ([#693](https://github.com/trinodb/trino-gateway/pull/693))
+* Add separate window for query text in query history page and enable display of
+  the full query text. 
+  ([#740](https://github.com/trinodb/trino-gateway/pull/740))
+* Show counts for healthy and unhealthy clusters in the summary section of the 
+  dashboard page.
+  ([#758](https://github.com/trinodb/trino-gateway/pull/758))
+* Fix UI rendering issues on routing rules page.
+  ([#660](https://github.com/trinodb/trino-gateway/pull/660))
+* Fix bug for non-admin users seeing login errors when accessing the UI when
+  page restrictions are configured.
+  ([#664](https://github.com/trinodb/trino-gateway/pull/664))
+
 ### Trino Gateway 15 (12 Mar 2025) { id="15" }
 
 Artifacts: