diff --git a/docs/development/tests.mdx b/docs/development/tests.mdx
index d317bb6dc..3bbf64ce2 100644
--- a/docs/development/tests.mdx
+++ b/docs/development/tests.mdx
@@ -4,6 +4,8 @@ description: "Testing patterns and requirements for FastMCP"
 icon: vial
 ---
 
+import { VersionBadge } from "/snippets/version-badge.mdx"
+
 Good tests are the foundation of reliable software. In FastMCP, we treat tests as first-class documentation that demonstrates how features work while protecting against regressions. Every new capability needs comprehensive tests that demonstrate correctness.
 
 ## FastMCP Tests
@@ -301,6 +303,8 @@ While in-memory testing covers most unit testing needs, you'll occasionally need
 
 #### In-Process Network Testing (Preferred)
 
+<VersionBadge version="2.13.0" />
+
 For most network transport tests, use `run_server_async` with AnyIO task groups. This runs the server as a task in the same process, providing fast, deterministic tests with full debugger support:
 
 ```python