2 weeks ago I decided to convert ‘old’ apps, created with Xojo 2016.3, to 2023.1
I asked the forum how to make the application (DeskTop) ready for 2023.1 ( Are charts only available for apple in xojo 2023.1? )
I needed the build-in charts desperately, to get rid of plugins. I overlooked the options in the 'Project" menu, but @Wayne_Golding pointed me on the missed option: Convert to API 2.0
After having done this the charts did appear in my library and my complete application was converted to API 2.0.
Besides adjusting the code (control names, property names & behaviors of controls were changed) I did not had to change anything else. My lay-out was the same, my container controls (I have about 9) were the same and after adjusting the code (took me about 3 hours, inclusive sorting out the new property syntax) the applications do run seamlessly under Xojo 2023.1
(I am using Windows 10 & 11 on different PC’s and no problems encountered on any of them)