For modern users, the true "update" is moving from 1Tool to Carel PRO.
The 1Tool environment is used to flash the firmware on the controllers. carel 1tool software updated
Is 1Tool still being updated? No. Carel has ceased active development on the classic 1Tool platform. The "update" path is no longer a patch for 1Tool; it is a migration to Carel PRO. For modern users, the true "update" is moving