Merge pull request mendix#6518 from mendix/ad-8.18.26-rn

8.18.26 RN

Author: Adam Dupaski

content/en/docs/releasenotes/studio-pro/8/8.18.md

@@ -3,12 +3,27 @@ title: "8.18"
 url: /releasenotes/studio-pro/8.18/
 description: "The release notes for Mendix Studio Pro 8.18 (including all patches) with details on new features, bug fixes, and known issues."
 weight: 82
+# Deprecation note in 8.18.26: We will drop support for PostgreSQL 11 after November 1, 2023.
 ---
 
 {{% alert color="info" %}}
 This is the [LTS](/releasenotes/studio-pro/lts-mts/#lts) version 8 release for apps in production.
 {{% /alert %}}
 
+## 8.18.26 {#81826}
+
+**Release date: September 19, 2023**
+
+{{% button color="info" href="https://marketplace.mendix.com/link/studiopro/8.18.26" text="Go to Marketplace" title="Download version 8.18.26 from the Marketplace" %}}
+
+### Fixes
+
+* We fixed an issue in the `$metadata` of published OData services using OData v3 where a self-referencing association resulted in two roles with the same name. (Ticket 193467).
+
+### Deprecations
+
+* We will drop support for PostgreSQL 11 after November 1, 2023, as it is no longer supported by the vendor.
+
 ## 8.18.25 {#81825}
 
 **Release date: July 6, 2023**