Google Contacts, the address book built into Gmail, lets you keep track of all your contacts, see when you last interacted with them, and more.
Email approved release changes and confirm the send result.
Your stakeholders get key changes and action items by email, with a link to the full release note page.
Separate newly shipped work from the last release in a review draft.
You get a release changelog draft on your review issue, with clear features and fixes linked to the completed work behind them.