Changelog
July 16, 2026
Faster & deeper test generation
New
- We overhauled the test generation methodology so that Heal generates deeper tests, faster.
Improved
- Improved performance of displaying long lists.
- The code view in a run's detail handles large files smoothly; it only renders what's on screen.
- Long agent sessions restore faster and stay lighter on memory.
- Traces reopen quicker: we reuse what we've already parsed instead of re-reading every time.
- Trace galleries load their screenshots as you scroll to them.
Fixed
- Fixed an issue where the tests filter dropdowns stopped working when clicked several times in a row.
July 10, 2026
Ask agent
New
- There's a new mode in the agent to ask heal anything. This comes on top of the add sandbox and run test coverage mode.
Fixed
- Fixed an issue where the infra would appear as `errored` even if it was up.
July 8, 2026
Run analysis
New
- Experimental: Run & fix from the Bugs screen, launch an agent that runs your suite, diagnoses each failing test against your changes, and applies a fix to your code or to your tests.
- Added Zed to the 'Open in..." menu, thanks FBienefelt for suggesting.
Improved
- Heal can create tests as out of scope when it needs a more complete sandbox to implement them.
- Heal checks for updates while it's running, so you're prompted to update without restarting the app.
- On Mac, Heal bounces for attention when it needs input.
- Valid mermaid charts now render.
Fixed
- The agent's latest output stays pinned to the bottom as it streams. Scroll up to read back, and a jump-to-latest button brings you home.
- Fixed the agent chat input. The agent prompt grows as you type. Add multi-line input with Shift+Enter.
- Markdown tables in the agent's replies render properly.
- Fixed an issue where the agent input looked too much like a pop-up.
- Notification sounds play only when Heal is in the background, not while you're looking at it.
- Fixed a bug that prevented test sources from appearing in the test view.
Misc
- The agent's waiting messages cycle a little more often.
July 7, 2026
Fix provider configs again
July 7, 2026
Fix provider configs
July 6, 2026
Auto updater and agent fixes
New
- New agent version: better adheres to instructions and spins up tests faster.
- Bring your sandbox infra up or down straight from the app.
- Run your tests without leaving Heal. Kick off a single test, a feature's tests, or the whole suite, and watch the output stream live — no terminal required.
Improved
- Heal asks logged-out users to log in before starting a session. Fixes an issue where the agent would hang without a clear error for logged-out users.
- You can now copy bugs from the Bugs view to clipboard.
- While the sandbox builds, the status and every build phase are clickable.
- Improved navigation in the sandbox overview. Click on any step to view its details view.
- Cleaner agent panel header: New and History are now icon buttons with hover tooltips.
Fixed
- Fixed an issue where the app would freeze when submitting many screenshots for Visual Defects analysis.
- Visual defect screenshots show up again.
- The back and close buttons on the Settings screen are clickable again.
- A single-action step no longer shows an expand arrow that had nothing to expand.
- Buttons and cards across the agent and sandbox screens show the right cursor on hover.
July 1, 2026
Introducing Visual Defects
Some bugs never fail a test: they just look wrong. Heal now catches Visual Defects across every screen your test suite traverses. Nice bug. We saw that.
New
- Heal catches visual defects across your tests.
- Watch your run history in the new Runs screen.
- Caffeinate mode keeps your Mac awake while the agent works.
- Opt in to crash diagnostics so we can fix issues faster.
- Log in from the app to see your token quota and plan.
- Open a new window with a keyboard shortcut.
Improved
- Heal remembers where you were when you reload.
- The layout adapts when you open the agent panel.
- Improved the feature pass and fail tracker to be easier to read.
- You can now open a run's Playwright trace.
Fixed
- Fixed an issue where Heal crashed on quit.
- The Features screen survives missing data.
Removed
- Removed the Copy seed button from the Golden Seed screen.
June 24, 2026
Bug reports
The new Bugs tab collects everything Heal caught while running your tests, so you know exactly what to fix.
New
- The Bugs tab lists every bug Heal finds.
- Watch the agent's status, and get a nudge when it needs you.
Improved
- Every view updates live as the agent works.
- You can collapse the architecture legend.
Fixed
- The terminal keeps focus when you expect it to.
- The start command runs reliably.
June 23, 2026
New
- Open Heal in as many windows as you like.
- Added sort by Kind, Features, and Status to the Tests view.
- Added support for several workspaces.
Improved
- Polished the look across the app.
- Columns no longer cut off their content.
June 22, 2026
New
- Added a built-in terminal with tabs that stay open as you switch workspaces.
- Added a trace viewer with a multi-tab editor, syntax highlighting, and a file tree scoped to your trace.
- Added a command palette (cmd+p / cmd+shift+p).
- A chat panel to work with the agent: review its plan, approve its actions, and see diffs full screen.
Improved
- Agent sessions retry on their own and pick up where they left off.
- New terminals open in the workspace you're working in.
Fixed
- Removing a repository leaves Heal in a clean state.
- Fixed a range of terminal and chat issues.