Merge "patch:apply - fix base commit picking"
diff --git a/Documentation/index.txt b/Documentation/index.txt
index e6af0ee..eaefbdf 100644
--- a/Documentation/index.txt
+++ b/Documentation/index.txt
@@ -52,9 +52,6 @@
. Multi-project management
.. link:user-submodules.html[Submodules]
.. link:https://source.android.com/source/using-repo.html[Repo,role=external,window=_blank] (external)
-. Prolog rules
-.. link:prolog-cookbook.html[Prolog Cookbook]
-.. link:prolog-change-facts.html[Prolog Facts for Gerrit Changes]
. link:intro-project-owner.html#project-deletion[Project deletion]
== Customization and Integration
diff --git a/Documentation/prolog-cookbook.txt b/Documentation/prolog-cookbook.txt
index c083f28..6c77109 100644
--- a/Documentation/prolog-cookbook.txt
+++ b/Documentation/prolog-cookbook.txt
@@ -1,5 +1,12 @@
:linkattrs:
-= Gerrit Code Review - Prolog Submit Rules Cookbook
+= Gerrit Code Review - Prolog Submit Rules Cookbook (Deprecated)
+
+[WARNING]
+Prolog rules are no longer supported in Gerrit. Existing usages of prolog rules
+can be modified or deleted, but uploading new "rules.pl" files are rejected.
+Please use link:config-submit-requirements.html[submit requirements] instead.
+Note that the link:#SubmitType[Submit Type] being deprecated in this
+documentation page currently has no substitution in submit requirements.
[[SubmitRule]]
== Submit Rule
