M12-Release-Notes.md

@@ -62,6 +62,12 @@ For detailed services that are included in this release, please refer to M12 tag
 
     * Updated [Schema Usage Guide](https://community.opengroup.org/osdu/data/data-definitions/-/blob/v0.15.0/Guides/README.md)
 
+* `Core and Helper Services`
+  * `CRS Catalog V3`
+    * To be added
+  * `CRS Conversion V3`
+    * To be added
+
 * `DDMS`
   * `Wellbore DDMS`
     * Add support of [WellLog 1.2.0](https://community.opengroup.org/osdu/data/data-definitions/-/blob/v0.14.0/E-R/work-product-component/WellLog.1.2.0.md). Issue [#38](https://community.opengroup.org/osdu/platform/domain-data-mgmt-services/wellbore/wellbore-domain-services/-/issues/38).