Where to find list of changes between Ruby 1.8 (pickax book version) and current (j)ruby version?

Ruby JRuby
1

I’d like to know what’s changed and been added.

Thanks,
Ken

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2

Kenneth McDonald wrote:

I’d like to know what’s changed and been added.

I think there’s probably something on the wiki, but if not you could
start a page with this and anything else you find. There’s also some
differences listed on the Wikipedia article, I believe.

Differences from Ruby (C Ruby/MRI):

  • Native threads (no green threading)
  • No continuation support
  • Fully based on JVM memory model and GC
  • No Kernel#fork
  • Kernel#exec does not replace current process
  • Access to Java libraries
  • No C Ruby extension support (use FFI or JNA)
  • Mixed-mode (interprets and JITs to JVM bytecode)
  • Supports ahead-of-time compilation to JVM bytecode

Others?

  • Charlie

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