[horde] How to upgrade - was: Horde 5.0.0alpha1

[Brent]

Quoting Jan Schneider <jan at horde.org>:

> Zitat von Götz Reinicke <goetz.reinicke at filmakademie.de>:
>
>> Am 06.07.12 00:37, schrieb Jan Schneider:
>>> The Horde Team is pleased to announce the first alpha release of the Horde
>>> Application Framework version 5.0.0.
>>
>> Hi,
>>
>> one more thing... is there also a plan for releasing an webmail edition?
>
> Of course, but only after the apps have stabilized.
>
>> Or what would be the best practice solution for testing H5? (All Docs
>> currently describe updating / installing up to H4.x)
>
> The same rules apply.
>
>> I do have a H4 webmail installation up and running on a test system
>> which could be blown up, so I can nearly do anything I like to.
>>
>> But an pear upgrade -a -B horde/webmail would be very nice ;)
>
> pear -d preferred_state=alpha upgrade -a -B -c horde
> -- 

Anyway to have a parallel installation?  I'd run it to a different  
mysql database since I assume there are many schema changes and I  
don't want to break the current version.  I'd like to kick the tires  
on the new release but I don't have a spare system handy.

brent