Release 2.2.4.

Author: bgrainger

docs/content/overview/version-history.md

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-lastmod: 2022-12-18
+lastmod: 2022-12-23
 date: 2017-03-27
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   main:
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 # Version History
 
+### 2.2.4
+
+* Fix a race condition in recovering leaked sessions: [#1263](https://github.com/mysql-net/MySqlConnector/issues/1263).
+
 ### 2.2.3
 
 * Avoid renormalizing parameter names when executing a prepared command: [#1252](https://github.com/mysql-net/MySqlConnector/pull/1252).