Jam has been launched with improved performance, featuring a 20x speed increase over its previous version. The core aspects of Jam have been rebuilt using GraphQL and mobx to provide a smoother and faster experience for users. New features include responsive device previews, better visibility of comments across pages, high-def screenshots with automatic annotation, an improved sidebar, a focused mode for working on one comment at a time, and updated UI for sending "do it later" Jam comments to Jira and Linear backlogs. The new version is invite-only, but an open link has been provided for a limited time to allow users to try it out before the invitation expires tomorrow.