Release notes

Author: kuenishi

AUTHORS

@@ -4,3 +4,4 @@ Heinz N. Gies, @Licenser
 Andrew Kirilenko, @iced
 Brett Bethke, @bb4242
 Mike Watters, @zerth
+@silverbuddy

README.md

@@ -99,6 +99,14 @@ Apache License 2.0
 
 # Release Notes
 
+## 0.3.3
+
+- Add OTP 17 series to Travis-CI tests
+- Fix wrong numbering for ext types
+- Allow packing maps even when {format,map} is not set
+- Fix Dialyzer invalid contract warning
+- Proper use of null for jiffy-style encoding/decoding
+
 ## 0.3.2
 
 - set back default style as jiffy