You can find full information about the update on KVS forum: KVS 4.0.1 update
Starting with KVS 4th generation we would like to change the way we approach to versioning and update policy. Earlier KVS had branches (1.x, 2.x, 3.x) and all updates within a branch were free, but updating to a new branch costed 25% of a new license price for each individual license. Many successful years passed and KVS now has many customers with big number of licenses on their accounts, so updating them all to KVS 4 will mean huge money for them.
As a result we have re-balanced our update policy:
- With regard to versioning we will not use 'branch' term anymore, all new versions will be of 2 types: major feature updates (e.g. 4.1, 4.2, etc.) and minor bugfixing updates (4.0.1, 4.0.2). Minor versions will be announced as usual, but we won't make them available publicly if no critical bugfixes, they will be available on request only. Changing this approach will let us introduce important bugfixes instantly without considering major version current state.
- Access to any updates will now cost $100 yearly per customer and it doesn't matter how many licenses you have. Any new Ultimate license purchase will give +1 year of free updates since the day of purchase. Any new other license purchase will give +0.5 year of free updates since the day of purchase.
- All clients who've purchased a new Ultimate license since 15.01.2017 or any other new license since 15.07.2017 will have free access to 4.0 update. For convenience we will update our customer zone with this info soon.
- All unused licenses will be using the latest version at any time, they will not be connected to any dates.
Please note that updating to 4.0 would never be free anyway, we are not adding a payment here that never existed before. The 25% policy was there since 2009. However the 3.x branch was being developed for the last 5 years and all updates within it were free, so this policy has never been applied. The new policy makes it much cheaper to apply 4.x update for customers who have many licenses on their accounts, whilst it doesn't affect much those customers who have only 1 license. Also instead of paying for updates you can simply purchase a new KVS license and your updates period will be auto-extended based on the rule described above.