diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index af55ef0..0ee8c01 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.2.1"
+  ".": "0.3.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9063366..f8b8141 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,34 @@ All notable changes to this project are documented here.
 Releases are managed by [release-please](https://github.com/googleapis/release-please)
 from Conventional Commits; entries below the latest are generated on release.
 
+## [0.3.0](https://github.com/andymai/so-arm101/compare/soarm101-v0.2.1...soarm101-v0.3.0) (2026-07-16)
+
+
+### ⚠ BREAKING CHANGES
+
+* the soarm-scan / soarm-teleop / soarm-* entry points are removed. Use `soarm <subcommand>` instead (run `soarm --help`).
+
+### Features
+
+* cross-platform serial support (Linux + macOS) ([995567b](https://github.com/andymai/so-arm101/commit/995567bc8cf1dd7275ca5d74866cf85385c74452))
+* **ports:** detect controller boards on Linux (ttyACM/ttyUSB) ([facb928](https://github.com/andymai/so-arm101/commit/facb928d1b4685babdbd8035fc3445334c3f8687))
+* **sim:** add mjpython-free viewer with joint sweep ([0c3a4e1](https://github.com/andymai/so-arm101/commit/0c3a4e1a6128e854106c880a49332c1b5b241431))
+* **teleop:** log to file + post-mortem on exit to diagnose limps ([d08e27b](https://github.com/andymai/so-arm101/commit/d08e27bac6eb9cb88ed53199b29b57282e775fc2))
+* unify into a single soarm Typer CLI ([520e989](https://github.com/andymai/so-arm101/commit/520e989f758faa66a821b03fb82b62be8d20faf3))
+* **viz:** Rerun digital twin, episode replay, and offline viewer ([17aded1](https://github.com/andymai/so-arm101/commit/17aded1d4a5643154dbba1edc7d513c34aa39efb))
+
+
+### Bug Fixes
+
+* **deps:** override diffusers to &gt;=0.38.0 (two high-severity RCE bypasses) ([1b08529](https://github.com/andymai/so-arm101/commit/1b08529e2c5926899b30e6cfdc1e6c8f8074d88f))
+* **deps:** patch diffusers RCE bypasses (override to &gt;=0.38.0) ([3ffb282](https://github.com/andymai/so-arm101/commit/3ffb2826cfe9540ebbddd3c56ef626b2a927848d))
+
+
+### Documentation
+
+* document Linux serial access (dialout group) ([9767d82](https://github.com/andymai/so-arm101/commit/9767d820ff5a870b10df95ebcfd5e2e0bcb0158e))
+* rearchitect for the unified soarm CLI + Rerun viz ([c64295b](https://github.com/andymai/so-arm101/commit/c64295b41968cb355436afea0bb8fd4df9652625))
+
 ## [0.2.1](https://github.com/andymai/so-arm101/compare/soarm101-v0.2.0...soarm101-v0.2.1) (2026-06-09)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 7b2283f..cb1243f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "soarm101"
-version = "0.2.1"
+version = "0.3.0"
 description = "Setup, repair, and brownout-safe operation tools for the SO-ARM101 (LeRobot)"
 readme = "README.md"
 requires-python = ">=3.10,<3.13"