Julia v1.12 Release Notes New language features The @ccall macro can now take a gc_safe argument, that if set to true allows the runtime to run garbage collection concurrently to the ccall Language changes Compiler/Runtime improvements Command-line option changes Multi-threading changes Build system changes New library functions New library features Standard library changes JuliaSyntaxHighlighting LinearAlgebra Profile REPL Test InteractiveUtils External dependencies Tooling Improvements