M12-Release-Notes.md

@@ -130,4 +130,8 @@ For detailed services that are included in this release, please refer to M12 tag
 
 ## Known Issues/Gaps
 
-* To be updated
+* **WITSML Parser** - 
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+  * Wellbore Tubular data type - need to pre-create parent record TubularAssembly.
+  * Wellbore Trajectory data type - currently broken after recent code revision.
+* **CRS Catalog V3** - ensure that Reference data (for CRS entities) is populated for schema version 1.1.0
+* **CRS Conversion V3** - ensure that Reference data (for CRS entities) is populated for schema version 1.1.0
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