Merge v1.3 into master.

Conflicts:
	docs/content/overview/version-history.md

Author: bgrainger

docs/content/overview/version-history.md

@@ -1,5 +1,5 @@
 ---
-lastmod: 2021-09-10
+lastmod: 2021-10-02
 date: 2017-03-27
 menu:
   main:
@@ -41,6 +41,11 @@ weight: 30
   * Use `ZLibStream` for compression: [#957](https://github.com/mysql-net/MySqlConnector/issues/957).
   * Use `X_OR_GREATER` preprocessor definitions: [#958](https://github.com/mysql-net/MySqlConnector/issues/958).
 
+### 1.3.13
+
+* Remove inner exception for `UnableToConnectToHost` exception: [#1035](https://github.com/mysql-net/MySqlConnector/issues/1035).
+* Reword "recovering leaked sessions" log message.
+
 ### 1.3.12
 
 * Fix bug executing stored procedures with backticks in their names: [#1029](https://github.com/mysql-net/MySqlConnector/issues/1029).