diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 3b263f099..2a44ea0e1 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,7 +1,16 @@
 ## Validator Changes
 
-* no changes
+* Avoid repeated R5 Extension loading in ValidatorService
+* Fix problems validating logical models
+* Fix `-locale` parameter functionality
+* Add Spanish internationalization phrases
 
 ## Other code changes
 
-* no changes
+* ProfileUtilities: Provide Standards Status in tree view
+* JSONParser: numerous r4b/r5 speed improvements and fixes
+* FHIRPathEngine: Catch exceptions resolving references in r5
+* Handle null source and target in ConceptMap conversions
+* Provide consistent rendering of comments in examples in IGs
+* Preparations for changes to IG Publisher narrative generation
+* Fix for Identifier.use conversion in dstu3