1. I think besides posting on the forum, Chevereto should consider emailing network license owners about this breaking change (even if it's a copy & paste). Because not all owners subscribe to the forum, they might only read it when they have something to ask. Things like changing support levels and "depreciation" are important for existing license holders. Send an email to owners (in addition to posting an announcement on the forum) to be a true announcement (instead of a "notice").
2. If you decided to cancel the network license option in V4, can existing owners get a bulk license discount for "V3 to V4 upgrade" (like 5% off for additional license purchase) after the "initial Chevereto V4 release" period?