On 7/27/07, Gabor Hojtsy <gabor@hojtsy.hu> wrote:
> Cog Rusty wrote:
> >> Well, update.php does not include older updates, so if one has an older
> >> 4.x site (let's say 4.5 or 4.4), he cannot upgrade directly, but first
> >> go to an intermediate version. I have not looked into it, but update.php
> >> might have problems, or would not inform the user, if he has such an old
> >> system that has no updates in the actual update.php/update.inc/*.install
> >> files code.
> >
> > The question remains, because how would it help to upgrade such an old
> > version first to 5.1 and not to 5.2?
> >
> > An advice which seemed safe so far was
> > (a) never skip major versions
> > (b) when stepping to the next major version use its latest minor
> > version, assuming that it would be more "bug-fixed"
>
> Absolutely agreed.

Just to add in: I upgraded a few sites from 4.6 to 5.1. One had no issues
at all. The other had some issues mainly related to data set size (database
too big) and varbinary/UTF8.

But the point is: there was no need to install 4.7 and upgrade from 4.6 to
4.7 first, then install 5.1 and upgrade to that.
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