On Tuesday 03 February 2009 21:53:42 Armin Berres wrote:
> Hi all!
> As you all know Lenny is near, which also means that our 4.2 packages will
> enter Unstable in the very near future. Until today, we still have not
> decided how to handle KDEHOME.
> The current situation is, that KDE 3 applications use ~/.kde and KDE 4
> applications use ~/.kde4. The problem with this approach is, that no
> data/settings are automatically converted to be used by KDE 4.
> The question is now: should we
> a) continue to use ~/.kde4 for KDE 4 applications
> b) use ~/.kde for KDE 4 applications.
> The problem with a) is, that as mentioned no data is is moved to KDE 4. The
> problem with b) is, that we don't know for sure, if all upgrade scripts
> work and users don't loose critical data. Apart from that users already
> using KDE 4 won't find their settings copied.
> (Add here more pros and cons for either option.)
> To overcome this, we had the following idea in IRC: Provide a little Qt
> application which starts at the first KDE 4 start and allows the users to
> copy their KDEHOMEs around.
> In case we would use ~/.kde for KDE 4 the script could offer to create a
> backup in ~/.kde3 so lost data can be reverted if anything goes wrong.
> If we continue to use ~/.kde4 the application could offer to copy ~/.kde to
> ~/.kde4.
> Non-KDE users are a bit lost here, we could document what to copy where.
> So, which options do you see? What would you prefer?
> Don't forget that we have to decide/code all this before we upload kde4libs
> to unstable.
> Greetings,
> Armin

I think it would be better to support migration from KDE4 experimental 
seamlessly, but also issue a message to those upgrading from KDE3 that 
settings haven't been migrated because KDE4 has major architectural changes 
from KDE3 (in simpler terms). However, it would still be useful to migrate 
mail, rss feeds, IM accounts, and the like.

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