diff --git a/activerecord/lib/active_record/integration.rb b/activerecord/lib/active_record/integration.rb
index 456689ec6d3ed0218e5ec3ffd39a129e82bec365..33c4066b8981c321b71260bc64267666e48c50cd 100644
--- a/activerecord/lib/active_record/integration.rb
+++ b/activerecord/lib/active_record/integration.rb
@@ -20,7 +20,7 @@ module Integration
       # Indicates whether to use a stable #cache_key method that is accompanied
       # by a changing version in the #cache_version method.
       #
-      # This is +false+, by default until Rails 6.0.
+      # This is +true+, by default on Rails 5.2 and above.
       class_attribute :cache_versioning, instance_writer: false, default: false
     end