diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4abf12e..011b98b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,16 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.51.4] - 2026-08-26
+
+### Bug Fixes
+
+- Serialize registry uploads and retry on HTTP 500
+
+### Refactor
+
+- Remove cross-repo contract tests from devx
+
 ## [0.51.3] - 2026-08-26
 
 ### Bug Fixes
diff --git a/README.md b/README.md
index 6f85f4d..5a0dbd8 100644
--- a/README.md
+++ b/README.md
@@ -87,7 +87,7 @@ extra index and list devx in your dependencies:
 ```toml
 [project]
 dependencies = [
-    "devx>=0.51.3",
+    "devx>=0.51.4",
 ]
 
 [tool.pip]
@@ -101,8 +101,8 @@ pip install -e .
 ```
 
 > **Note:** If your project requires a specific devx version, pin it in
-> `dependencies` (for example, `"devx==0.51.3"`) or use a version constraint
-> (for example, `"devx>=0.51.3,<0.52"`).
+> `dependencies` (for example, `"devx==0.51.4"`) or use a version constraint
+> (for example, `"devx>=0.51.4,<0.52"`).
 
 ### Optional extras
 
diff --git a/docs/index.md b/docs/index.md
index cf727e9..7be9f93 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -74,14 +74,14 @@ Add devx to your `pyproject.toml` dependencies and configure the registry:
 ```toml
 [project]
 dependencies = [
-    "devx>=0.51.3",
+    "devx>=0.51.4",
 ]
 
 [tool.pip]
 extra-index-url = "https://git.oblachno.oblachno.fyi/api/packages/oblachno-oss/pypi/simple"
 ```
 
-Pin a specific version if needed: `"devx==0.51.3"` or `"devx>=0.51.3,<0.52"`.
+Pin a specific version if needed: `"devx==0.51.4"` or `"devx>=0.51.4,<0.52"`.
 
 ### Optional extras
 
diff --git a/docs/user/getting-started.md b/docs/user/getting-started.md
index afff025..aea974b 100644
--- a/docs/user/getting-started.md
+++ b/docs/user/getting-started.md
@@ -48,12 +48,12 @@ Add devx to your `pyproject.toml`:
 ```toml
 [project]
 dependencies = [
-    "devx>=0.51.3",
+    "devx>=0.51.4",
 ]
 
 [project.optional-dependencies]
 dev = [
-    "devx>=0.51.3",
+    "devx>=0.51.4",
 ]
 ```
 
diff --git a/src/devx/__init__.py b/src/devx/__init__.py
index a4e9859..25c699c 100644
--- a/src/devx/__init__.py
+++ b/src/devx/__init__.py
@@ -6,4 +6,4 @@ create_dependency_pr, auto_merge, release, publish), developer tooling
 molecule testing helpers for Ansible projects.
 """
 
-__version__ = "0.51.3"
+__version__ = "0.51.4"