What's Changed

• [1.9] test stability improvement. by @methane in https://github.com/go-sql-driver/mysql/pull/1699
• [1.9] Transaction Commit/Rollback returns conn's cached error by @methane in https://github.com/go-sql-driver/mysql/pull/1702
• backport benchmark_test by @methane in https://github.com/go-sql-driver/mysql/pull/1706
• [1.9] optimize readPacket (#1705) by @methane in https://github.com/go-sql-driver/mysql/pull/1707
• [1.9] fix PING on compressed connections by @methane in https://github.com/go-sql-driver/mysql/pull/1723
• release v1.9.3 by @methane in https://github.com/go-sql-driver/mysql/pull/1725

Full Changelog: https://github.com/go-sql-driver/mysql/compare/v1.9.2...v1.9.3