I know it's ridiculous that I;m running such an old version but believe me, I have good reasons for that. Nevertheless, I want to move on - but given the number of versions to skip, that is rather a lengthy road, when I would follow the recommendation to go step-by-step, a max of two versions in between....
I know I should do:
* disable all plugins
* disable all themes that I use and revert to the default
* run the update, test it.
* and the next
* and the next .... and so on, until I'm at the latest version.
The other (fast track) would be to export all data, install the latest version, create a new database and import the previous data. But that would only work proper;y if the database schema hasn't changed, of have been thoroughly be documented. Neither is true, I think: I haven't seen anything on the site for both....
Any ideas on how I can speed things up without ruining my database? (I do,. of course, have backups that I can restore, but that, again, takes time.)