Google Drive is Google's file sync app that lets you store all of your files online alongside your Google Docs documents, and keep them synced with all of your devices.
Send stakeholders a digest after approved release notes go live.
Your stakeholders get key changes and action items by email, with a link to the full release note page.
Compare release work and post a changelog draft for approval.
You get a release changelog draft on your review issue, with clear features and fixes linked to the completed work behind them.