Website deployed from calcite@052a5cc724a889edf19c1d76ea166c0d0924a5d3
diff --git a/docs/howto.html b/docs/howto.html
index 7c6b235..b8c38a4 100644
--- a/docs/howto.html
+++ b/docs/howto.html
@@ -224,6 +224,8 @@
 Gradle. If necessary it will also upgrade the Gradle Wrapper.
 This step also updates <code class="language-plaintext highlighter-rouge">gradle/wrapper/gradle-wrapper.properties</code>,
 including the checksum.</li>
+  <li>Check and update Kotlin version in <code class="language-plaintext highlighter-rouge">gradle.properties</code> if required.
+Check should be done against <a href="https://docs.gradle.org/current/userguide/compatibility.html#kotlin">Kotlin compatibility matrix</a>.</li>
   <li>Step 3 will have removed the header from
 <code class="language-plaintext highlighter-rouge">gradle/wrapper/gradle-wrapper.properties</code>,
 so now run <code class="language-plaintext highlighter-rouge">./gradlew autostyleApply</code> to add it back.</li>