CHANGELOG.md in format_parser-0.20.1 vs CHANGELOG.md in format_parser-0.21.0

@@ -1,4 +1,7 @@
+## 0.21.0
+* Adds support for MPEG video files
+
 ## 0.20.1
 * Make sure EXIF results work correctly with ActiveSupport JSON encoders
 
 ## 0.20.0
 * Correctly tag the license on Rubygems as MIT (Hippocratic) for easier audit