[TYPO3-ect] lib/div & compatibility

[Franz Holzinger]

Hello Daniel

> so the only solutions seems to be that we use special extensionkeys for
> every release of the framework.

Yes, because the EM does not support 2 versions of an extension to be
installed at the same time. You cannot use div 0.0.12 and div 1.1.1
simultaneously.

> * first release (=SVN branch01): lib 01 + div 01
> * second release (=SVN branch02): lib 02 + div 02
> 
> Within a branch _NO change of the API_, just bugfix-updates.

But additional functions and functionalities shall be allowed during
Alpha and Beta Phase. During beta phase only features from a defined
list may be commited.
Only bugfixes during RC phase.

> And an alias for the current version: lib=lib02, div=div02 (we know this
> from Linux. If you install "mysql" you get the latest version of mysql.

Yes, if you can accomplish this in the EM.
This would mean that you install div2007 and the function calls are
still div::functionname. The extension must define in ext_emconf.php
that it uses div2007 for div-calls. So you will need a nacro for this.

> => No problem to have several release-versions in the same installation.
> 
> Better?
much better now


- Franz