Just noticed the u2d.log contains an entry for BETA-3 availability.
Just went to System > Admin > Firmware and ran a Check Now... it's now downloading.
April 2016
Less than six months, Martin? They're smokin' something other than tobacco if they think that's even a remote possibility! [:O]
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Best regards
Martin
Sophos XGS 2100 @ Home | Sophos v19 Architect