Olvy is an AI-powered changelog tool that helps inform users about product updates without spending hours writing releases. It offers customizable in-app widgets, a changelog portal, a release editor, and AI-writer capabilities to help generate well-written releases. It also offers multi-language support, SEO ready features, custom domains, and custom CSS. Additionally, it integrates with various tools such as Slack, Discord, Zapier, and Github, and provides analytics, feedback and reactions, and 1:1 notifications.