diff --git a/CHANGELOG.md b/CHANGELOG.md
index c929162..cdc6226 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 All notable changes to the tp library are documented here.
 
-## 1.0.0 (Unreleased)
+## 1.0.1 (Unreleased)
 
 ### Added
 
@@ -18,6 +18,9 @@ All notable changes to the tp library are documented here.
 
 ### Changed
 
+- Package metadata now distinguishes builds that include
+  `tp-transaction.el`; consumers can require TP 1.0.1 without an older 1.0.0
+  development snapshot being accepted as a complete transaction runtime.
 - `define-tp` and `define-tps` now define static or parameterized direct declaration recipes. Applying a recipe produces ordinary properties and never publishes runtime identity metadata.
 - TP is no longer a CSS engine. Selector, stylesheet, specificity, origin/importance, cascade layer, CSS-wide value, custom property, winner, and provenance behavior belongs to the independent ECSS package.
 - Function-valued properties are always literal. Only values wrapped by `tp-computed` execute and participate in dependency collection.
diff --git a/tests/tp-transaction-tests.el b/tests/tp-transaction-tests.el
index b43b06b..3c55e9f 100644
--- a/tests/tp-transaction-tests.el
+++ b/tests/tp-transaction-tests.el
@@ -1371,7 +1371,7 @@
   (should (eq tp-transaction-protocol
               'tp-transaction-protocol-v1+v2))
   (let ((manifest (tp-runtime-manifest)))
-    (should (equal (plist-get manifest :version) "1.0.0"))
+    (should (equal (plist-get manifest :version) "1.0.1"))
     (should (eq (plist-get manifest :transaction-protocol)
                 'tp-transaction-protocol-v1+v2))
     (should (plist-get manifest :batch-artifacts))
diff --git a/tp.el b/tp.el
index 3c9d288..ec249b7 100644
--- a/tp.el
+++ b/tp.el
@@ -2,7 +2,7 @@
 
 ;; Copyright (C) 2024-2026 Geekinney
 
-;; Version: 1.0.0
+;; Version: 1.0.1
 ;; Keywords: convenience text-properties
 ;; Author: Geekinney (kinneyzhang666@gmail.com)
 ;; Package-Requires: ((emacs "28.1"))
@@ -66,7 +66,7 @@
 (require 'tp-builtins)
 
 (defconst tp--runtime-manifest
-  `(:package tp :version "1.0.0"
+  `(:package tp :version "1.0.1"
     :transaction-protocol ,tp-transaction-protocol
     :batch-artifacts t
     :batch-execution v1-bridge