# Percona Server 5.5 to 5.6 In-Place upgrade

**URL:** <https://forums.percona.com/t/percona-server-5-5-to-5-6-in-place-upgrade/4623>\
**Category:** Other MySQL® Questions\
**Created:** [December 22, 2015, 3:50am UTC](https://forums.percona.com/t/percona-server-5-5-to-5-6-in-place-upgrade/4623 "2015-12-22T03:50:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![spirtt0](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/spirtt0/32/1022_2.png) [@spirtt0](https://forums.percona.com/u/spirtt0)\
**Post date:** [December 22, 2015, 3:50am UTC](https://forums.percona.com/t/percona-server-5-5-to-5-6-in-place-upgrade/4623/1 "2015-12-22T03:50:45Z")

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Hi !  
I want upgrade Percona Server 5.5.40 to last 5.6, i was read manual provided on site [url][Percona Server for MySQL 8.0 - Documentation — Percona Server 8.0 Documentation](https://www.percona.com/doc/percona-server/5.6/upgrading_guide_55_56.html%5B/url%5D)

It contain links to MySQL manual, which alert about TIMESTAMP incompatibility. Does upgrade procedure need any additional steps except provided in manual or mysql\_upgrade is enough to resolve all issues with 5.5 → 5.6 upgrade ?

Thank you