Changelog

What's new in Tandem, newest first.

19–24 October 2026

Week of 19 October

Chat first. A session is a normal conversation. Share an idea and the agent asks about it, one question at a time, until it understands the whole thing.
Plan before building. Once the idea is clear, the agent writes a plan you can review and change. Nothing is built until you say so.
Team plans. Turn a room's conversation into a plan split into parts, each with an owner. Everyone builds their part on their own Mac, then it all comes together as one change.
Modes. Choose how much an agent can do on its own: Auto, Manual, Accept edits, Plan or Bypass permissions.
Watch work happen. See the commands an agent runs with their output, and every edit as a before-and-after.

Rooms. Each project is a room: who's here, their agents, what they're working on and what's waiting on you.
Group chats with everyone's agents. Every person and every person's agent in one conversation. Mention any agent, even a teammate's. Anyone in the room can answer an agent's questions.
End-to-end encrypted team sync. Invite your team with one link. What you share is encrypted on your Mac first, so we can't read it.
Shared memory. Decisions, owners and open questions are picked up from your chats, with a warning when two people's agents touch the same files or a decision changes.
Hackathons. One link sets up the whole team, with a countdown, a demo plan and a draft of the submission write-up.

Every agent you already pay for. Claude Code, Codex, Cursor, Gemini, GitHub Copilot, OpenCode and local models through Ollama, with several accounts for each.
Auto picks the agent. Work goes to whichever agent has the most room left, and Tandem learns which agents do best at what. You can still pick the exact model.
Usage at a glance. Rings show how much of each plan you've used, and when it will run out at your current pace.
Race. Give the same request to two to four agents and keep the best result.

No collisions. Each piece of work happens in its own copy of the project. When it's done it lands in your project as unsaved changes: Save keeps it (and can push it), Undo removes it.
Tests and preview. Your project's tests run on finished work, and Preview shows it running before you keep it.
Review tools. Comment on lines of a change, ask a second agent for its opinion, or get the change explained in plain words.
GitHub. Start work from an issue, open a pull request, and send reviewers' comments back to the agent.

A new look in graphite and lime, with a light theme, side-by-side panes and a menu bar item that shows what needs you.
Your memory, your call. Export or delete your memory at any time.
Linux. Tandem now runs on Linux too (.deb and AppImage), tested on Ubuntu 24.04.