diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,11 @@
 
 _No unreleased changes._
 
+## 0.3.0.0 — 2026-07-14
+
+No user-facing changes. `keiro-core` is released at 0.3.0.0 to stay in lockstep
+with the rest of the Keiro package set.
+
 ## 0.2.0.0 — 2026-07-13
 
 ### Breaking Changes
diff --git a/keiro-core.cabal b/keiro-core.cabal
--- a/keiro-core.cabal
+++ b/keiro-core.cabal
@@ -1,6 +1,6 @@
 cabal-version:   3.0
 name:            keiro-core
-version:         0.2.0.0
+version:         0.3.0.0
 synopsis:        Core contracts for Keiro packages
 description:
   Stable stream, codec, event-stream, and integration-event contracts