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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.83 24 Mar 2026

Ultrareview (Cloud Code Review)

What

A rebranded and enhanced cloud-based code review feature. A cloud agent analyzes your branch for ~5–15 minutes, finding and verifying bugs, then delivers findings as a task notification.

Details

Launched in the background — users can continue working while the review runs
Review output arrives as a task notification when complete; press shift+↓ to view results
Requires a git repository with a GitHub remote and OAuth login
Replaces the previous "Remote review" terminology

Evidence

Cloud review feature (search for "ultrareview", "~5–15 min", "Cloud agent finds and verifies bugs")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.83 →