Update 10.18.md

Author: ConnorLand

content/en/docs/releasenotes/studio-pro/10/10.18.md

@@ -12,7 +12,7 @@ This is the [MTS](/releasenotes/studio-pro/lts-mts/#mts) version 10 release for
 
 ## 10.18.9 {#10189}
 
-**Release date: July ___, 2025**
+**Release date: July 8, 2025**
 
 {{% button color="info" href="https://marketplace.mendix.com/link/studiopro/10.18.8" text="Go to Marketplace" title="Download version 10.18.9 from the Marketplace" %}}