Here’s a concise piece on :
Kerio Control 9.4.2 is a stable release within the 9.4 line of the GFI network security solution. While version 9.4 launched in May 2022, version 9.4.2 was released to address specific bugs and improve overall security. A follow-up patch, , was released on October 17, 2022 (Build 7290). 2. Core Features & Enhancements Security & VPN : Support for 2-step verification kerio control 9.4.2
Are you planning to from an older version, or are you troubleshooting a specific performance issue on 9.4.2? Kerio Control 9.4 Release Notes Kerio Control 9