We regret to inform our long-time users that Gene Construction Kit and Gene Inspector will cease to be supported under the Catalina (Mac OS 10.15) operating system upgrade.
Unfortunately, we do not have plans to migrate GCK or GI up to 64-bit, which is required for compatibility with Mac OS 10.15. The programs will remain at releases GCK 4.5.x, and GI 2.0.x, at 32-bit.
The option to keep running GCK or GI under the 10.15 – Catalina environment, is to use an application such as Parallels Desktop, to setup a ‘virtual’ environment for a supported OS (up through 10.14). With the Parallels Desktop app, you can continue to run GCK or GI on your main computer simultaneously within a separate virtual window.
Alternatively, you are free to re-install the applications on another computer running a compatible version of Mac OS.