Hi Sunny no need you can still use your existing license since your entitled to upgrade for the any latest version that being release. Hi Elmer, Thank you for the clarification. If possible, could you please share any document or screenshot which states that? Hi Sunny, Just to clarify, when you bought your KESB License is the license was activation code or key file? Hi Elmer, It was with the activation code. Hi Sunny, I see, again every customer is entitled for upgrade sorry but I can’t provide any document since it’s totally legal and were doing the upgrade to our customers as well if they want to or if there’s incompatibility issues with the old version.