more uniform directory layout for macOS;
uniform Isabelle_app executable + lib/scripts/Isabelle_app for Linux and macOS;
proper support for Apple "Files and Folders" security via x86_64-darwin executable (which is still able to launch arm64-darwin Java);
Isabelle Tutorials!
prog-prove Programming and Proving in Isabelle/HOL
locales Tutorial on Locales
classes Tutorial on Type Classes
datatypes Tutorial on (Co)datatype Definitions
functions Tutorial on Function Definitions
corec Tutorial on Nonprimitively Corecursive Definitions
codegen Tutorial on Code Generation
nitpick User's Guide to Nitpick
sledgehammer User's Guide to Sledgehammer
eisbach The Eisbach User Manual
sugar LaTeX Sugar for Isabelle documents
Isabelle Reference Manuals!
main What's in Main
isar-ref The Isabelle/Isar Reference Manual
implementation The Isabelle/Isar Implementation Manual
system The Isabelle System Manual
jedit Isabelle/jEdit
Old Isabelle Manuals
tutorial Tutorial on Isabelle/HOL
intro Old Introduction to Isabelle
logics Isabelle's Logics: HOL and misc logics
logics-ZF Isabelle's Logics: FOL and ZF