diff --git a/docs/relnotes/19.1.7.html b/docs/relnotes/19.1.7.html
index e91ae6febdc..8b21ae85e3c 100644
--- a/docs/relnotes/19.1.7.html
+++ b/docs/relnotes/19.1.7.html
@@ -27,6 +27,11 @@ Some drivers don't support all the features required in OpenGL 4.5.  OpenGL
 4.5 is <strong>only</strong> available if requested at context creation.
 Compatibility contexts may report a lower version depending on each driver.
 </p>
+<p>
+Mesa 19.1.7 implements the Vulkan 1.1 API, but the version reported by
+the apiVersion property of the VkPhysicalDeviceProperties struct
+depends on the particular driver being used.
+</p>
 
 <h2>SHA256 checksums</h2>
 <pre>