Wondering what the Claude Code diff panel actually shows you — and how to switch it on? The quick version is just below. Anthropic shipped the diff panel in Claude Code v2.1.260, released 3 September 2026 per the official Claude Code changelog, and it fixes the thing that makes people nervous about agentic coding: not being able to see what the AI is changing while it works.
Short answer:
- What it is: a diff panel that opens beside the conversation in fullscreen mode and shows your uncommitted changes as Claude edits — added in v2.1.260 on 3 September 2026, per the official changelog.
- How to open it: toggle it with the
/diffslash command inside your session. - What it tracks: uncommitted changes, live, while Claude is editing — no more alt-tabbing to
git diffafter every step. - It landed alongside session archiving, a filterable slash-commands dialog and new session-list status filters (v2.1.259–2.1.260).
- Why it matters: reviewing edits as they happen is how you catch a wrong turn after one file, not after twenty.
What Is the Claude Code Diff Panel?
The Claude Code diff panel is exactly what it sounds like: a live view of your uncommitted changes that opens beside the conversation in fullscreen mode, updating as Claude edits your files. The official changelog entry for v2.1.260, dated 3 September 2026, describes it in one line: “Added a diff panel that opens beside the conversation in fullscreen mode and shows your uncommitted changes as Claude edits; toggle it with /diff.”
That single line solves a real workflow problem. When you hand Claude a multi-file task — a refactor, a template change across a site, a batch of content tweaks — the work happens fast, and until now the honest options were to interrupt and ask what changed, or to wait until the end and untangle everything with git diff. Neither is great. The panel gives you a third option: watch the changes accumulate while the agent works, and step in the moment something looks off.
For anyone using Claude Code to run content operations — the way I use it across my own sites — that visibility is the difference between trusting the process and babysitting it.
How to Open the Claude Code Diff Panel
Opening the Claude Code diff panel takes one command:
- Update Claude Code to v2.1.260 or later — the feature landed on 3 September 2026.
- Type
/diffin your session. The panel opens beside the conversation in fullscreen mode. - Work as normal. As Claude edits files, the panel shows the uncommitted changes.
- Type
/diffagain to toggle it away when you’re done reviewing.
There’s no configuration mentioned in the changelog entry — it’s a toggle, not a setup job. The obvious prerequisite is that you’re working somewhere with uncommitted changes to show, i.e. a git repository mid-task.
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Why Live Diff Review Changes Agentic Coding
Agentic coding tools live or die on trust, and trust comes from visibility. The pattern I recommend to everyone shipping content and code with AI is the same: let the agent move fast, but keep a review surface open so mistakes are caught at the first file, not the twentieth. Before this update that review surface was a second terminal running git diff on repeat. Now it’s built in, beside the conversation, updating live.
It also compounds with the rest of Claude Code’s recent direction. The same v2.1.260 release, per the changelog, reworked the action menu so slash commands live in a filterable “Slash commands” dialog, and gave the MCP servers dialog the same filter box. The day before, v2.1.259 added an Active quick filter and a status filter menu — Needs input, Working, Completed — to the session list sidebar in VS Code. Add session archiving (a right-click “Archive session” action, with archived sessions moving to a collapsible group at the bottom of the list) and the picture is clear: Anthropic is building for people running many sessions at once, and giving them the controls to supervise all of it.
That’s the same direction I’ve covered in my guides to Claude Code cross-session messaging and Claude Code self-hosted environments — the tooling keeps shifting from “one chat, one task” to a supervised fleet.
Claude Code Diff Panel vs Git Diff
| Diff panel (/diff) | git diff in a terminal | |
|---|---|---|
| Updates | Live, as Claude edits | Manual — re-run it yourself |
| Where it lives | Beside the conversation, fullscreen mode | Separate pane or window |
| Scope | Your uncommitted changes | Anything git can address, including history |
| Effort mid-task | One toggle, then passive | Constant context switching |
They’re complements, not rivals: the panel is for supervision while the agent works; git remains the tool for staging, committing and history once you’re happy.
The Bottom Line on the Claude Code Diff Panel
The Claude Code diff panel is a small command with an outsized effect on how confidently you can delegate. It shipped 3 September 2026 in v2.1.260, it costs you one /diff to open, and it replaces the most tedious part of AI-assisted work — constantly checking what actually changed — with a live view that’s just there. If you run Claude Code on anything that matters, toggle it on for your next multi-file task and you’ll feel the difference immediately: faster reviews, earlier catches, fewer surprises at commit time.
Want to see how this fits a full content system rather than a one-off task? That’s what we do every week inside the AI Profit Boardroom.
FAQ: Claude Code Diff Panel
What is the Claude Code diff panel?
A panel added in Claude Code v2.1.260 (3 September 2026) that opens beside the conversation in fullscreen mode and shows your uncommitted changes as Claude edits — a live review surface for agentic work.
How do I open and close it?
Toggle it with the /diff slash command. Run it once to open the panel, again to close it.
Does it show committed changes?
The changelog describes it as showing your uncommitted changes as Claude edits. For committed history, use your normal git tooling.
Is it the same as running git diff?
Same underlying state, different experience: the panel updates live beside the conversation without you leaving the session, while git diff is a manual snapshot you re-run by hand.
What else shipped alongside it?
Per the changelog: session archiving in VS Code with a collapsible Archived group (v2.1.260), the filterable Slash commands dialog (v2.1.260), and session-list status filters — Needs input, Working, Completed — plus an Active quick filter (v2.1.259).
Do I need to configure anything to use /diff?
No configuration is mentioned in the changelog — update to v2.1.260 or later and toggle it inside a session that has uncommitted changes to review.
Related reading
Next step: if you’d like the diff panel — and the whole Claude Code stack — wired into a content system that ranks, join 3,700+ members inside the AI Profit Boardroom for four live calls a week, daily tutorials, templates and a 30-day roadmap. Or book a free SEO strategy session and I’ll map it out with you.
About the author: Julian Goldie is an SEO agency owner with 394K+ YouTube subscribers, a 100% job-success score on Upwork, 75K+ community members across his groups, 10+ years in SEO and a best-selling SEO book. Catch his latest tutorials on YouTube, learn AI SEO with him inside the AI Profit Boardroom, or book a free SEO strategy session. For agency work, book a call for a custom quote.
Last updated September 2026. This is the living guide to claude code diff panel — it gets updated as the tools change.
