diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 1.0.0.0 - 2026-08-20
+
+- Publish the validated GHC 9.10.3, 9.12.4, and 9.14.1 public-library surface
+  as the stable 1.0 release.
+- Preserve the API and dependency surface of 0.1.0.1 unchanged.
+
 ## 0.1.0.1 - 2026-08-20
 
 - Support GHC 9.10.3, 9.12.4, and 9.14.1 across every public library.
diff --git a/moonlight-category.cabal b/moonlight-category.cabal
--- a/moonlight-category.cabal
+++ b/moonlight-category.cabal
@@ -1,6 +1,6 @@
 cabal-version:       3.4
 name:                moonlight-category
-version:             0.1.0.1
+version:             1.0.0.0
 homepage:            https://github.com/PaleRoses/moonlight
 bug-reports:         https://github.com/PaleRoses/moonlight/issues
 synopsis:            Categorical layer for Pale Meridian.
@@ -38,7 +38,7 @@
 source-repository this
   type:     git
   location: https://github.com/PaleRoses/moonlight.git
-  tag:      moonlight-category-0.1.0.1
+  tag:      moonlight-category-1.0.0.0
   subdir:   moonlight-category
 
 common shared-properties