On Mon, Nov 16, 2009 at 6:07 PM, Maurits van Rees
> In the metadata.xml in your profile the best practice is currently to
> use plain version numbers, right? So just 1, then 2, then 3 etc and
> not 1.0 then 1.1 then 1.2, right?
> Using plain version numbers I have just hit a problem that I find
> strange that I have not hit before. An upgrade step from 8 to 9 went
> fine. Then I did an upgrade step from 9 to 10 and suddenly
> portal_setup listed theprevious upgrade step as available, since '10'
> was alphabetically smaller than '9'...
> As a workaround I added one or more zeroes to the source, destination
> and metadata.xml version numbers and then it works. I will hit the
> next problem after the 99th upgrade step. ;-)
> Should we change this in GenericSetup itself and add some zeroes in
> front when comparing numbers?
Which version of GenericSetup was this? In the upcoming 1.5 (Plone
4.0) the code uses the pkg_resources API to parse version numbers
instead of interpreting them as simple strings. That should cover your
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