Citrix has released SP3 for Provisioning Services 5.6.
You can download the service pack here.
BUG0262922: While a VHD file is being copied, its vDisk becomes “Private Mode” on the PVS console of another host.
BUG0285549 Targets HA failover or rebalancing may fail when multiple NIC’s are used for PVS on the servers.
BUG0284631: When target local cache fails over to server side, the cache mode in BNIStack and that in the database is not consistent.
BUG0284672 Streamprocess crashes when many targets login and reconnect, causing corruption on the booting target list
BUG0284389 Target randomly hangs at “No servers available for disk” message when booting many targets together and duplicate login request occurs
BUG0284386 StreamProcess randomly restarts if targets reconnect with invalid vdisk ID or as “unknown device” causing multiple “Record was not found” exceptions from DB access
BG0291849: Storage monitoring of Streamprocess should use different counters for READ/WRITE failures from pending read/write threads of a target