diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..d9f5596
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,45 @@
+# Changelog
+
+Notable changes to MeshTerm, newest first.
+
+The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and the version
+numbers follow [Semantic Versioning](https://semver.org/spec/v2.0.0.html) — with the caveat
+SemVer itself makes for a leading zero: while the major version is `0`, a **minor** bump is
+allowed to change behaviour, not just add to it.
+
+## [Unreleased]
+
+## [0.2.0] — 2026-09-07
+
+The first version to carry a changelog. Everything before it is in the commit log and is
+deliberately not reconstructed here.
+
+### Added
+
+- This file.
+
+### Changed
+
+- The project description now says what MeshTerm is, how it reaches a radio, and which
+  systems it runs on, instead of naming a category. It is the PyPI summary and the package
+  docstring, which no longer disagree.
+- The version is written in exactly one place, `meshterm/__init__.py`. The distribution
+  metadata reads it from there rather than repeating it, so the number on the splash screen
+  and the number in a built wheel cannot drift apart.
+- The basemap user agent identifies the real repository and reports the running version.
+  It previously sent a bare `https://github.com/` and a hardcoded `0.1` to OpenFreeMap,
+  which is the only handle a tile operator has on a client.
+- `macOS` and `Bluetooth` are spelled one way across the project. `BLE` stays where it is
+  an identifier — the transport name, the config keys, the CLI.
+
+### Fixed
+
+- The three commands `CONTRIBUTING.md` asks contributors to run all pass:
+  `python -m pytest -q`, `ruff check .`, and `ruff format --check .`. The lint gate had been
+  reporting 2222 errors and the format gate 154 files, so a first contributor could not tell
+  their own diff from the background.
+- Two `TYPE_CHECKING` imports the test suite referenced but never imported, on paths that
+  happened never to run.
+
+[Unreleased]: https://github.com/jpmartineau/MeshTerm/compare/v0.2.0...HEAD
+[0.2.0]: https://github.com/jpmartineau/MeshTerm/releases/tag/v0.2.0
diff --git a/meshterm/__init__.py b/meshterm/__init__.py
index 4d78531..4ef5b3a 100644
--- a/meshterm/__init__.py
+++ b/meshterm/__init__.py
@@ -5,7 +5,7 @@ Supports USB, Bluetooth and TCP companion connection. For Windows, macOS and Lin
 
 from datetime import datetime
 
-__version__ = "0.1.0"
+__version__ = "0.2.0"
 __author__ = "Jean-Pierre Martineau"
 
 #: The year MeshTerm was first published; the copyright span starts here.
diff --git a/pyproject.toml b/pyproject.toml
index a50b810..13ba21e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "meshterm"
-version = "0.1.0"
+dynamic = ["version"]
 description = "MeshTerm is a full-featured TUI-based MeshCore client for your terminal. Supports USB, Bluetooth and TCP companion connection. For Windows, macOS and Linux."
 readme = "README.md"
 requires-python = ">=3.10"
@@ -37,6 +37,11 @@ dev = [
 [project.scripts]
 meshterm = "meshterm.cli:main"
 
+# The one place a version is written; `[project] version` is dynamic so the package
+# attribute and the distribution metadata cannot drift apart.
+[tool.hatch.version]
+path = "meshterm/__init__.py"
+
 [tool.hatch.build.targets.wheel]
 packages = ["meshterm"]