Added note on CJKSearch feature flag

Author: agarciamontoro

source/administration-guide/configure/enabling-chinese-japanese-korean-search.rst

@@ -6,9 +6,14 @@ Chinese, Japanese and Korean search
 .. include:: ../../_static/badges/all-commercial.rst
   :start-after: :nosearch:
 
-Enabling search for Chinese, Japanese and Korean (CJK) requires special configuration, since these languages do not contain spaces.
 
-See :doc:`database requirements documentation </deployment-guide/software-hardware-requirements>` for how to set up search for these languages.
+```{Attention}
+Starting on Mattermost v11.6, searching for Chinese, Japanese or Korean (CJK) characters can be enabled with the `feature flag <https://developers.mattermost.com/contribute/more-info/server/feature-flags/#changing-feature-flag-values>` ``MM_FEATUREFLAGS_CJKSEARCH``.
+
+What follows is the special configuration required for versions older than v11, where MySQL was still supported.
+```
+
+See :doc:``database requirements documentation </deployment-guide/software-hardware-requirements>` for how to set up search for these languages.
 
 Below is additional information on how to configure the database for different languages.
 

source/deployment-guide/software-hardware-requirements.rst

@@ -97,7 +97,7 @@ Amazon Aurora equivalents of PostgreSQL is also supported. Our `Migration Guide
 .. important::
 
     - MariaDB v10+ no longer functions as a MySQL drop-in replacement, and it's not supported for Mattermost due to the requirement of MySQL 5.7.12. Prior versions of MariaDB were not officially supported but may have functioned in older Mattermost releases. If you are running MariaDB now, migrating from MariaDB to the MySQL equivalent is recommended.
-    - Deployments requiring searching in Chinese, Japanese, and Korean languages require MySQL 5.7.6+ and the configuration of `ngram Full-Text parser <https://dev.mysql.com/doc/refman/5.7/en/fulltext-search-ngram.html>`__. For searching two characters, you will also need to set ``ft_min_word_len`` and ``innodb_ft_min_token_size`` to ``2`` and restart MySQL. See `CJK discussion <https://github.com/mattermost/mattermost/issues/2033#issuecomment-183872616>`__ for details.
+    - MySQL deployments requiring searching in Chinese, Japanese, and Korean languages require the configuration of `ngram Full-Text parser <https://dev.mysql.com/doc/refman/5.7/en/fulltext-search-ngram.html>`__. For searching two characters, you will also need to set ``ft_min_word_len`` and ``innodb_ft_min_token_size`` to ``2`` and restart MySQL. See `CJK discussion <https://github.com/mattermost/mattermost/issues/2033#issuecomment-183872616>`__ for details.
 
 Minimum PostgreSQL database support policy
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