Fix wrong method lookup cache used when class is prepended

While benchmarking a @Talkdesk JRuby application during our recent hackaton, I noticed quite a lot of thread contention in a workload where there should be no shared data. Stack traces showed that...

8604276 Explicitly capture the exception rather than relying on $! 4ba7a1c Ensure to load a given config file only once 653a4f2 Return early if $VERBOSE == nil in our Kernel#warn c5493b8 Suppress w...

The first fix here, which fixes #4564, stopped the Symbol operand from modifying an existing symbol with the same bytes to have a new Encoding. This was broken because sometimes the encoding it cho...

Add native console support on AARCH64

Windows does not yet support our fully-native IO, but this path still tried to use that logic. Since we can't wrap all native file descriptors, this logic is only special-cased for stdio. O...

…-pid Return Process::Waiter with pid in Process.detach

JIT fixnum cases (with a value span <= 32) as a tableswitch

Add AARCH64 support in FFI