diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
index 42ad285340..42c794c828 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
@@ -136,7 +136,7 @@ module ActiveRecord
       #
       # In order to get around this problem, #transaction will emulate the effect
       # of nested transactions, by using savepoints:
-      # http://dev.mysql.com/doc/refman/5.0/en/savepoint.html
+      # http://dev.mysql.com/doc/refman/5.6/en/savepoint.html
       # Savepoints are supported by MySQL and PostgreSQL. SQLite3 version >= '3.6.8'
       # supports savepoints.
       #
@@ -189,7 +189,7 @@ module ActiveRecord
       # semantics of these different levels:
       #
       # * http://www.postgresql.org/docs/9.1/static/transaction-iso.html
-      # * https://dev.mysql.com/doc/refman/5.0/en/set-transaction.html
+      # * https://dev.mysql.com/doc/refman/5.6/en/set-transaction.html
       #
       # An <tt>ActiveRecord::TransactionIsolationError</tt> will be raised if:
       #
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 7e41772227..b4e29a608a 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -915,14 +915,14 @@ module ActiveRecord
         variables['wait_timeout'] = self.class.type_cast_config_to_integer(wait_timeout)
 
         # Make MySQL reject illegal values rather than truncating or blanking them, see
-        # http://dev.mysql.com/doc/refman/5.0/en/server-sql-mode.html#sqlmode_strict_all_tables
+        # http://dev.mysql.com/doc/refman/5.6/en/server-sql-mode.html#sqlmode_strict_all_tables
         # If the user has provided another value for sql_mode, don't replace it.
         unless variables.has_key?('sql_mode')
           variables['sql_mode'] = strict_mode? ? 'STRICT_ALL_TABLES' : ''
         end
 
         # NAMES does not have an equals sign, see
-        # http://dev.mysql.com/doc/refman/5.0/en/set-statement.html#id944430
+        # http://dev.mysql.com/doc/refman/5.6/en/set-statement.html#id944430
         # (trailing comma because variable_assignments will always have content)
         if @config[:encoding]
           encoding = "NAMES #{@config[:encoding]}"
diff --git a/guides/source/2_3_release_notes.md b/guides/source/2_3_release_notes.md
index 328656f4a4..0a62f34371 100644
--- a/guides/source/2_3_release_notes.md
+++ b/guides/source/2_3_release_notes.md
@@ -187,7 +187,7 @@ MySQL supports a reconnect flag in its connections - if set to true, then the cl
 
 * Lead Contributor: [Dov Murik](http://twitter.com/dubek)
 * More information:
-    * [Controlling Automatic Reconnection Behavior](http://dev.mysql.com/doc/refman/5.0/en/auto-reconnect.html)
+    * [Controlling Automatic Reconnection Behavior](http://dev.mysql.com/doc/refman/5.6/en/auto-reconnect.html)
     * [MySQL auto-reconnect revisited](http://groups.google.com/group/rubyonrails-core/browse_thread/thread/49d2a7e9c96cb9f4)
 
 ### Other Active Record Changes
diff --git a/railties/lib/rails/generators/rails/app/templates/config/databases/jdbcmysql.yml b/railties/lib/rails/generators/rails/app/templates/config/databases/jdbcmysql.yml
index acb93939e1..f5b62e8fb3 100644
--- a/railties/lib/rails/generators/rails/app/templates/config/databases/jdbcmysql.yml
+++ b/railties/lib/rails/generators/rails/app/templates/config/databases/jdbcmysql.yml
@@ -7,7 +7,7 @@
 # gem 'activerecord-jdbcmysql-adapter'
 #
 # And be sure to use new-style password hashing:
-#   http://dev.mysql.com/doc/refman/5.0/en/old-client.html
+#   http://dev.mysql.com/doc/refman/5.6/en/old-client.html
 #
 default: &default
   adapter: mysql
diff --git a/railties/lib/rails/generators/rails/app/templates/config/databases/mysql.yml b/railties/lib/rails/generators/rails/app/templates/config/databases/mysql.yml
index 596c916573..b0767bd93a 100644
--- a/railties/lib/rails/generators/rails/app/templates/config/databases/mysql.yml
+++ b/railties/lib/rails/generators/rails/app/templates/config/databases/mysql.yml
@@ -7,7 +7,7 @@
 #   gem 'mysql2'
 #
 # And be sure to use new-style password hashing:
-#   http://dev.mysql.com/doc/refman/5.0/en/old-client.html
+#   http://dev.mysql.com/doc/refman/5.6/en/old-client.html
 #
 default: &default
   adapter: mysql2