trasnfering Wordpress and database website users to new server

[questions]

Is it just a matter of doing the user backups and then restoring them on the new server and all the database stuff is automatically updated even if the new server has a different OS and different version of PHP/MySQL/Apache?

My current server is quite old. The new server will be somewhat up to date.

All of the users are under the admin reseller.

My worries are having to mess with a lot of Wordpress code to fix databases that didn't transfer.

 

[Active8]

No, especially coming from older PHP versions & MySQL can cause problems because some code is ancient and it will throw errors
Because you didn't write what the upgrade path will be it is difficult to say.

I must admit that most of the WordPress sites can make this upgrade without problems, just use the backup system of DA for that

 

[Zhenyapan]

My current server is quite old. The new server will be somewhat up to date.

What exact versions on both ends? for example migration from mysql 5.5 to 5.7 may be ok, but to 8 - may be with errors in some rare cases.
the same with PHP, if WP works on php 5.6 and you will jump to 8.0 - lagre part of plugins can be incompatible, as a WP core too. So You can install on new server some middle versions to migrate step by step. Like old was php 5.3, at new you can install php 7.4, 8.0, and 5.6 as additional third temporary use it till all updates inside WP will be finished, then just change PHP version in domain management (DA panel)

 

[ikkeben]

My current server is quite old. The new server will be somewhat up to date.

At least you should update as much on that old server before the backups made for the transfer to other server.
And also test function ./ sites after those updates before the backup > transfer , so you are sure it should work.

Backup and transfer without doing / try to update on old server before is not so good idea!

Also you have to read doc's how to reverse versions after updates if needed. ( MYSQL and MARIADB can't be downgraded in DA while no support on that and often breaks then) so backups of all DB needed on other device / space.

Read the changelogs and docs of all versions changes , while for example some defaults are changed in Mariadb wich could break...

You have to know the WP versions and used plugins and yes no supported versions / settings php mysql and so on. That is your JOB as admin , or the Webadmins should be informed before you do make updates that they have to check and inform you.

BUT make and keep backups before you try the updates ofcourse.

Best is if possible to get as near as possible to the versions used on new server.