Release 2.1.2.

Author: bgrainger

docs/content/overview/version-history.md

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-lastmod: 2021-12-21
+lastmod: 2021-12-22
 date: 2017-03-27
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 # Version History
 
+### 2.1.2
+
+* Fix incorrect results when using prepared commands with MySQL Server 8.0.23–8.0.25.
+  * Those server versions advertise support for query attributes, but do not fully support them for prepared statements.
+  * The server-side bug is triggered by the client-side support for query attributes added in MySqlConnector 2.1.0.
+
 ### 2.1.1
 
 * Fix `InvalidOperationException` when `OpenAsync` is called again after being canceled: [#1097](https://github.com/mysql-net/MySqlConnector/issues/1097).