RELEASE_NOTES.md in harvesting-0.4.0 vs RELEASE_NOTES.md in harvesting-0.5.0

- old
+ new

@@ -1,6 +1,19 @@
 # RELEASE NOTES
 
+### main 
+
+**Notes**
+
+### Version 0.5.0 - September 3, 2020 
+
+**Notes**
+- Changed behavior of `client.clients` so that it returns an instance of `Harvesting::Models::Clients` instead of an `Array`: https://github.com/ombulabs/harvesting/pull/39
+
+**Bug Fixes**
+- Add support for Harvesting::RateLimitExceeded instead of a JSON::ParserError: https://github.com/fastruby/harvesting/pull/57
+- Add support for RequestNotFound instead of a JSON::ParserError: https://github.com/fastruby/harvesting/pull/54
+
 ### Version 0.4.0 - June 6, 2020
 
 **Notes**
 - Added Ruby 2.5.1 to version matrix in Travis: https://github.com/ombulabs/harvesting/pull/31
 - Associated time entries for project: https://github.com/ombulabs/harvesting/pull/32