Horde/IMP Upgrade via ART's yum

[iMedia]

I'm looking to upgrade PSA's webmail (Horde/IMP) via ART's yum, however... I have found two packages BUT niether one is listed in my "Installed Packages"

Available Packages:
psa-imp
4.0.3-fc2.build75050506.13psa-7.55555

psa-horde
3.0.4-fc2.build75050506.13psa-7.55555

My current PSA:
7.5.2-fc2.build75050128.11db

Can I upgrade Horde as a standalone upgrade via ART's yum, even though it's not listed as an installed packaged???

[faris]

These packages are part of the 7.5.3 build. As far as I know you need to upgrade to PSA 7.5.3 before you can use them I'm afraid.

Faris.

[iMedia]

I thought so. I read in another post that PSA 7.5.3 moves Horde (and other things) on certain OS's.

Thanks for your feedback!