This extension helps you see what events have happened since your last visit to GitHub and what events you have already seen. It is compatible with both personal news feeds as well as organizations feeds.
WNGH_VERSION=X.Y.Z
cd whats-new-github/
zip whats-new-github-v$WNGH_VERSION.zip icon/128.png icon/48.png index.js manifest.json
mv whats-new-github-v$WNGH_VERSION.zip ..
cd ..