Installed version: Unknown

Your installation doesn't include version tracking.

To fix: npx ag4one-cc --global

This will reinstall with version tracking enabled.


STOP here if no VERSION file.
</step>

<step name="fetch_remote_changelog">
Fetch latest CHANGELOG.md from GitHub:

Use WebFetch tool with:
- URL: `https://raw.githubusercontent.com/XcluEzy7/ag4one/main/CHANGELOG.md`
- Prompt: "Extract all version entries with their dates and changes. Return in Keep-a-Changelog format."

**If fetch fails:**
Fall back to local changelog:
```bash
cat ~/.claude/ag4one/CHANGELOG.md 2>/dev/null

Note to user: "Couldn't check for updates (offline or GitHub unavailable). Showing local changelog."

Extract latest version - First ## [X.Y.Z] line after ## [Unreleased]
Compare with installed - From VERSION file
Extract entries between - All version sections from latest down to (but not including) installed

Version comparison:

If installed == latest: "You're on the latest version"
If installed < latest: Show changes since installed version
If installed > latest: "You're ahead of latest release (development version?)"

If up to date:

## AG4 What's New

**Installed:** 1.4.26
**Latest:** 1.4.26

You're on the latest version.

[View full changelog](https://github.com/XcluEzy7/ag4one/blob/main/CHANGELOG.md)

If updates available:

## AG4 What's New

**Installed:** 1.4.23
**Latest:** 1.4.26

---

### Changes since your version:

## [1.4.26] - 2026-01-20

### Added
- Feature X
- Feature Y

### Changed
- **BREAKING:** Changed Z behavior

## [1.4.25] - 2026-01-18

### Fixed
- Bug in feature A

---

[View full changelog](https://github.com/XcluEzy7/ag4one/blob/main/CHANGELOG.md)

**To update:** `npx ag4one-cc --global`

Breaking changes: Surface prominently with BREAKING: prefix in the output.

<success_criteria>

Installed version read from VERSION file
Remote changelog fetched (or graceful fallback to local)
Version comparison displayed clearly
Changes since installed version shown (if any)
Update instructions provided when behind </success_criteria>

whats-new