Set variables:
$ export VERSION=X.Y.Z
$ export GPG_KEY=E7ADD9914E260E8B35DFB50665FDE935573ACDA6
Update version numbers:
$ vim -p package.json
$ npm install
Update changelog:
$ vim CHANGELOG.md
Commit & tag:
$ git commit -S${GPG_KEY} -m "Release v${VERSION}"
$ git tag -s -u ${GPG_KEY} v${VERSION} -m "Version ${VERSION}"
Push:
$ git push && git push --tags