:nodoc: version method.

 Reason:
 - Its not publicly used method.
 - Exposing it makes an assumption that other adapters support it based on its usage - ActiveRecord::Base.connection.version

 [ci skip]

1 files changed, 1 insertions, 1 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index 1797af4e97..330fb11895 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -77,7 +77,7 @@ module ActiveRecord
         }
       end
 
-      def version
+      def version #:nodoc:
         @version ||= Version.new(full_version.match(/^\d+\.\d+\.\d+/)[0])
       end