Brandan Bellina has released the Apple II Technical Notes HyperCard stack which is now available for download from the Silverwand Apple II site. The stack includes all June 1992 A2 technical notes and file type notes as well as additional documents.
Note that this stack requires Hypercard GS in order to work. You can download the Apple II Technical Notes Hypercard stack and many other Hypercard GS stacks from the Silverwands website at:
https://sites.google.com/view/silverwandsoftware/
