With the new network layer, we can implement new functions that were impossible with the legacy network layer. The first is the application sleep notification.
For example, your user arrives at his office and starts his remote client applications. At lunchtime, the notebook enters into energy-saving mode (sleep). When the user comes back, he wakes the PC up.
Before, the client application would display a connection error and your user had to restart the client application. Now, your user just resumes his work. The reconnection is transparent; no user action is necessary.
While sleeping, locked records stay locked, transactions remain open, just as if the client were alive. Your server administrator can see the sleeping client on the server interface. When your server administrator performs a maintenance operation on 4D Server, they can choose whether or not to wait your sleeping client.
For more details, please take a look at the 4D v15 R5 Upgrade manual.