CHANGELOG.md in format_parser-0.12.2 vs CHANGELOG.md in format_parser-0.12.4

@@ -1,4 +1,12 @@
+## 0.12.4
+* Ensure JPEG recognition only runs when the JPEG SOI marker is detected **at the start** of file. Previously
+  the JPEG parser would scan for the marker, sometimes finding it (appropriately) in places like... MP3 album
+  artwork inside ID3 tags. Or Keynote documents. Or whatnot - lots of things have JPEG thumbnails embedded.
+
+## 0.12.3
+* Make sure all strings going to the JSON representations of parse results are encoded as UTF-8 or escaped
+
 ## 0.12.2
 * Make sure the `VERSION` constant is available in the loaded gem. Previously the constant would be made
   available by Bundler when developing the library - since it loads the `.gemspec` which, in turn, requires the
   version.rb file, but when used as a gem the version.rb file would not end up being loaded.