diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..eb8cbba
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,48 @@
+# Changelog
+
+All notable changes to Quantum are documented here. Versions follow
+[ChronVer](https://chronver.org); the format follows
+[Keep a Changelog](https://keepachangelog.com).
+
+## 2026.07.16
+
+First packaged release of Quantum — a self-hosted personal finance app
+(SvelteKit + Deno + SQLite) with automatic SimpleFIN account sync.
+
+### auth
+
+- ATProto OAuth login with a per-DID allowlist, sessions, and profile avatars
+
+### simplefin sync
+
+- Daily and manual sync with reconciliation, tolerant amount parsing, and deep
+  backfill for new accounts within the Bridge advisory windows
+
+### categorization
+
+- Rules engine plus a dedicated rules workbench: payee/memo matching, amount
+  matching, rule tray from the ledger, and a display-name overlay
+
+### ledger
+
+- Transaction details with categorization provenance and raw bank-record
+  inspection
+
+### csv import
+
+- Additive-only backfill import with duplicate review, undo, and a source filter
+
+### dashboard
+
+- Month-to-date overview: spend pie (Poline-generated palette), in/out/pending
+  tiles, and recent transactions
+
+### packaging
+
+- Container image (Docker) with OCI metadata, ChronVer versioning, changelog and
+  release tooling, and an AGPL-3.0 license
+
+### ci
+
+- Tangled Spindles pipelines: fmt/typecheck/test checks on every push, and a
+  container image build published to atcr.io on each release tag
diff --git a/package.json b/package.json
index 33f0bf9..243adbe 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
 	"name": "quantum",
 	"private": true,
-	"version": "0.0.1",
+	"version": "2026.07.16",
 	"license": "AGPL-3.0-or-later",
 	"type": "module",
 	"scripts": {