I get a warning that KaleidaGraph is not optimized for my Mac. Will there be a 64-bit version of the software?
Yes. We are currently rewriting the software using a new underlying toolkit which will allow us to provide a 64-bit version of KaleidaGraph for both Mac and Windows. Beta testing for the 64-bit Mac version is currently underway. The release date for the final version is a couple of months away. Registered users who are interested in beta testing can complete the form under the Support menu of our site.
If you do not want to use a beta version, we suggest using a program like VMWare Fusion, Parallels, or VirtualBox to install and run an earlier version of the OS as a virtual system. If you have multiple Macs, you could leave one at an older OS. If you have access to a Windows computer, the Windows version of KaleidaGraph can open your Mac files. Here are links to setting this up using Parallels Lite and VirtualBox: Parallels Lite: https://www.imore.com/how-install-macos-vm-run-your-32-bit-apps VirtualBox: https://appletoolbox.com/need-to-run-32-bit-apps-on-macos-catalina-use-a-mojave-virtual-machine/