diff --git a/website/content/docs/upgrade/upgrade-specific.mdx b/website/content/docs/upgrade/upgrade-specific.mdx
index e58a20ae0..29bde337b 100644
--- a/website/content/docs/upgrade/upgrade-specific.mdx
+++ b/website/content/docs/upgrade/upgrade-specific.mdx
@@ -13,6 +13,15 @@ upgrade. However, specific versions of Nomad may have more details provided for
 their upgrades as a result of new features or changed behavior. This page is
 used to document those details separately from the standard upgrade flow.
 
+## Nomad 1.8.1 (UNRELEASED)
+
+<EnterpriseAlert inline />
+
+Nomad Enterprise 1.8.1 includes an updated version of the Sentinel library. Users
+that have built custom Sentinel plugins must recompile them using an SDK
+supporting Sentinel Plugin Protocol Version 3. Consult the Sentinel
+[SDK Compatibility Matrix](https://github.com/hashicorp/sentinel-sdk?tab=readme-ov-file#sdk-compatibility-matrix) for appropriate Sentinel SDK versions.
+
 ## Nomad 1.8.0
 
 #### Deprecated Disconnect Fields