Update from 9.1.6 to 10.0.3

Tell me please, how correctly to update the server owncloud 9.1.6 to 10.0.3?

Ubuntu 14.04.5
Apache 2.4.7
Php 5.5.9
MySql 5.5.57

I correctly understand, that my at first need to update php and mysql?
I'm planning a manual update!

Thank You!

Please double check the docs - manual upgrade is in depth documented

I do not quite understand, can I immediately upgrade to 10.0.3?
Or do I need to update step-by-step (using intermediate versions)?

Thank You!