5.6.3.4 with PHP7? Upgrade from 5.6.3.4 to 5.7.x

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Hello!

I have a client website which runs 5.6.3.4 currently but we're migrating webhost. The new host runs PHP7, and if I understand correctly 5.6.3.4 doesn't run on PHP7?

The jump from 5.6.3.4 to 5.7 doesn't seem as simple as version switching within the same branch. I've tried doing it manually but either I fail somewhere or it's not supposed to be that simple?

I've seen some migrate tool during my searches, but it looked like an Concrete addon. Currently I'm trying to get a "dev" version working on the new host, but since I can't even access the dashboard on it it'd be cumbersome to get an addon working. Is it my only option? If so, does it work magically or will I have to do some manual labour? (bad experience with automagical version migrating tools)

There's also a few addons I'm worried about breaking (see attachement). I bet it's not as simple as upgrading from 5.6.3.4 and then just making a search for new versions of the addons from the dashboard? But that's a side note, my main headache is not having the website supporting PHP7.

The website hasn't gotten any maintenance in quite a while it seems, heh..

Grateful if someone have the time to verify my thoughts.

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ConcreteOwl replied on at Permalink Best Answer Reply
ConcreteOwl
Most good hosts will give you several options on which version of php you want to run on the server.
So for now ask them to set php to version 5.6.
There is no easy method of switching from 5.6.3.4 to 5.7.x.x, the legacy version of the migration tool will export most content, however there will still be a lot of other stuff to be done manually.
Your existing addons will have to be modified to run on 5.7 or replaced with updated versions.
Your existing theme will also need to be updated or replaced with a 5.7 version..
reztoire replied on at Permalink Reply
I see, thanks for the response.