diff --git a/CHANGELOG.md b/CHANGELOG.md
index de747924e78a581ae372f40c6e2fa2e252668d9f..7b55ee13d9a74fa5e343d81489e197e638cc6ef2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Deprecated ###
 
+* MySQL Support. Last version which is known to work well with LinkAhead is MySQL 5.6
+
 ### Removed ###
 
 ### Fixed ###
diff --git a/README_SETUP.md b/README_SETUP.md
index 1b88d56636ccbbbfa3ed616ff323d8e9fdf4835c..52ee1106fbead3ff6ad39c931bc552e670790dfc 100644
--- a/README_SETUP.md
+++ b/README_SETUP.md
@@ -1,9 +1,9 @@
 # Setup of the CaosDB SQL back end
 
 ## Dependencies
-* `MariaDB Client 10.1`, `MySQL Client 5.5`, or later versions.  In the case of
-  MySQL, version 5.6 is recommended.
-- make
+
+* `MariaDB Client 10.1` or later, `MySQL Client >=5.5, <=5.6`.
+* make
 
 ## Create the configuration
 * Create an empty `.config` file. For the default values and the meaning of