Preferred Sabredav version for Roundcube 1.0.4?

[deafnull]

Hi,

Currently I am configuring the latest (1.0.4) Roundcube Webmail on Ubuntu 14.04 and everything is going pretty smooth. We run a Sabredav server for caldav/carddav support, that had to be reconfigured recently, because of a crash

Two questions:

1. When running Roundcube V 1.0.4 with Sabredav plugins, what would be the preffered version of Sabredav to run? I recall that the latest Sabredav version was still unsupported in the previous 1.0.x Roundcube. Is this still the case?

2. I noticed that the config file for latest Sabredav plugin now shows https as default, instead of http for connection to DAV server. So I can run https now, instead of http? This would be a great advantage, I wasn't happy with http 

Thanks!