v1.0.21 — Whiteboard New-button fix + Sonnet default
What's new
This release pulls in clawdSlate v0.1.9 under the hood. No Fathom-side code changes — all the user-visible fixes are in the whiteboard surface.
- New button no longer leaves the old whiteboard behind. Clicking New → Discard now actually clears. Half-cleared state on disk auto-recovers on startup.
- Refine self-heals if it's somehow called without an established paper.
- spawn ENOTDIR fixed for the asar-bundled Claude CLI.
- Sonnet by default — roughly 3× faster whiteboard generation than Opus.
- Verbose stream logs make slow-step diagnosis easy.
- Chat polish — natural Claude-style user echo bubble, auto-collapsing run logs, hairline turn separators.
Auto-update
Existing v1.0.20 users will pick this up via the in-app update check. Help → Check for Updates, or wait ~3s after launch.
Fresh install
```bash
curl -fsSL https://raw.githubusercontent.com/ashryaagr/Fathom/main/install.sh | bash
```