chore: adapted changelog

Author: maltesander

CHANGELOG.md

@@ -16,12 +16,15 @@
 - Internal operator refactoring: introduce dereference() and validate() steps in the reconciler ([#757]).
 - Removed the `product-config` dependency; configuration is now rendered from typed, validated inputs ([#757]).
 - test: Bump vector-aggregator to 0.55.0, replace /graphql call with gRPC call ([#762]).
+- BREAKING: Removed product-config machinery. This is a breaking change in terms of configuration.
+  Users relying on the product-config `properties.yaml` file have to set these properties via the CRD ([#765]).
 
 [#745]: https://github.com/stackabletech/hbase-operator/pull/745
 [#751]: https://github.com/stackabletech/hbase-operator/pull/751
 [#752]: https://github.com/stackabletech/hbase-operator/pull/752
 [#757]: https://github.com/stackabletech/hbase-operator/pull/757
 [#762]: https://github.com/stackabletech/hbase-operator/pull/762
+[#765]: https://github.com/stackabletech/hbase-operator/pull/765
 
 ## [26.3.0] - 2026-03-16