diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0f176b0..3b004ed 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -65,6 +65,13 @@ This changelog is automatically generated by AI when releases are published.
 
 For detailed design rationale and implementation notes, see `docs/superpowers/specs/2026-04-29-telemetry-streams-design.md`.
 
+## [3.0.0] - 2026-11-04
+
+### Added
+
+- **`autter badge`**: a README badge with the share of the repository's added lines written by AI, `AI-written | 72%`. It prints the share over the last 90 days (`--since`, `--all-time`), how many commits had authorship notes, and a Markdown snippet it also copies. Repositories linked to Autter get a live badge that stays current; others get a shields.io badge, and `--write` stores an endpoint file (`.autter/badge.json`) that keeps it current from the repository itself. `--json` prints that payload. See [changelog/readme-ai-badge.md](changelog/readme-ai-badge.md).
+- **`autter wrapped`**: your year of AI-assisted coding in a repository as a card made for screenshots: AI share overall and by month, top agent and model, most-prompted file, longest prompt, longest streak and busiest weekday. `--share` publishes it as a page at `app.autter.dev/wrapped/<token>` with share cards in story, square and wide sizes to download or post; sharing again updates the same page. `--hide-repo` leaves the repository name off, and `--unshare` takes the page down. `--json` prints the numbers. Prompt text stays on the machine unless you pass `--include-prompt-text`. See [changelog/wrapped.md](changelog/wrapped.md).
+
 ## [2.4.0] - 2026-11-03
 
 ### Added
diff --git a/Cargo.lock b/Cargo.lock
index 9195b30..be61d72 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -258,7 +258,7 @@ checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
 
 [[package]]
 name = "autter"
-version = "2.4.0"
+version = "3.0.0"
 dependencies = [
  "autter",
  "base64",
diff --git a/Cargo.toml b/Cargo.toml
index 2cfbf4a..0126e3d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ resolver = "3"
 
 [package]
 name = "autter"
-version = "2.4.0"
+version = "3.0.0"
 edition = "2024"
 default-run = "autter"
 
diff --git a/changelog/readme-ai-badge.md b/changelog/readme-ai-badge.md
new file mode 100644
index 0000000..6520627
--- /dev/null
+++ b/changelog/readme-ai-badge.md
@@ -0,0 +1,19 @@
+# `autter badge`: a README badge with the repository's AI-written share
+
+`autter badge` prints the share of the repository's added lines that were written by AI and a README badge that shows it: `AI-written | 72%`.
+
+- The share is AI-accepted lines over added lines, summed over the commits that carry an authorship note. It is the same ratio every commit summary uploads as `ai_percent`.
+- By default it counts the last 90 days of non-merge commits on the current branch. `--since <date|duration>` takes anything `git log --since` accepts, and `--all-time` counts every commit reachable from HEAD. At most 2,000 commits are walked, and the output says when the cap was hit.
+- Commits without a note add nothing to the share, but they are counted, so the output reports coverage. Files matching `.autter-ignore` and `--ignore <pattern>` are left out, as in `autter stats`.
+- The Markdown snippet is printed and copied to the clipboard at a terminal. Which badge it uses depends on the setup:
+
+  | Setup | Badge |
+  |---|---|
+  | Repository linked to Autter, signed in | A live badge served by Autter at `app.autter.dev/api/public/repos/<token>/badge.svg`. It is always current and links to autter.dev. |
+  | `--write` on a GitHub repository | A shields.io endpoint badge that reads the committed `.autter/badge.json`, so it updates whenever the file does. |
+  | Anything else | A shields.io static badge with today's number. |
+
+- `--json` prints the shields.io endpoint payload (`schemaVersion`, `label`, `message`, `color`) plus the figures behind it. `--write [path]` stores the same payload, by default in `.autter/badge.json`.
+- Colors: no data is grey; under 25% light blue; 25-49% blue; 50-74% indigo; 75% and up Autter teal. The live badge uses the same label, rounding and colors.
+
+The live badge needs the updated Autter API (Autter-dev/autter-monorepo#641). Without it, or when the lookup takes more than 5 seconds, the command prints the static badge and one line saying why.
diff --git a/npm/package.json b/npm/package.json
index 890dbd8..9b2fef1 100644
--- a/npm/package.json
+++ b/npm/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@autter/cli",
-  "version": "2.4.0",
+  "version": "3.0.0",
   "description": "Git-native AI authorship tracking: records which lines were written by AI agents and links them to the agent, model, and prompt. This package is a thin bootstrapper that installs the native autter binary.",
   "license": "Apache-2.0",
   "homepage": "https://autter.dev",