The new open source version has some more functions then the old version that was free for the first 10 users. All exiting free installations will receive an small automatic update to get thus new functions and remove the user limit.

However thus automatic update will first have to go thru our procedures for staging and testing.

In the meantime, if you have an ES that is limited to 10 users you can apply the following license key to remove the user limit:

5W4CE-AA4AA-ZRBXR-A9RAD-FK56

Go to the administrator panel and apply it under Settings-> License.