diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed4e8089a..38f2ed143 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,12 @@ All versions prior to 0.9.0 are untracked.
 
 ## [Unreleased]
 
+## [3.0.0]
+
+Maintainers' note: this is a major release, with significant public API and CLI
+changes. We **strongly** recommend you read the entries below to fully
+understand the changes between `2.x` and `3.x`.
+
 ### Added
 
 * API: `Signer.sign_artifact()` has been added, replacing the removed
@@ -432,7 +438,8 @@ This is a corrective release for [2.1.1].
 
 
 <!--Release URLs -->
-[Unreleased]: https://github.com/sigstore/sigstore-python/compare/v2.1.5...HEAD
+[Unreleased]: https://github.com/sigstore/sigstore-python/compare/v3.0.0...HEAD
+[3.0.0]: https://github.com/sigstore/sigstore-python/compare/v2.1.5...v3.0.0
 [2.1.5]: https://github.com/sigstore/sigstore-python/compare/v2.1.4...v2.1.5
 [2.1.4]: https://github.com/sigstore/sigstore-python/compare/v2.1.3...v2.1.4
 [2.1.3]: https://github.com/sigstore/sigstore-python/compare/v2.1.2...v2.1.3
diff --git a/sigstore/__init__.py b/sigstore/__init__.py
index 005b8d74a..f4edd16e5 100644
--- a/sigstore/__init__.py
+++ b/sigstore/__init__.py
@@ -25,4 +25,4 @@
 * `sigstore.sign`: creation of Sigstore signatures
 """
 
-__version__ = "3.0.0rc2"
+__version__ = "3.0.0"