TruffleRuby - GraalVM Community Edition 1.0 RC15

Bug fixes:

• Improved compatibility with MRI's Float#to_s formatting (#1626).
• Fixed String#inspect when the string uses a non-UTF-8 ASCII-compatible encoding and has non-ASCII characters.
• Fixed puts for strings with non-ASCII-compatible encodings.
• rb_protect now returns Qnil when an error occurs.
• Fixed a race condition when using the interpolate-once (/o) modifier in regular expressions.
• Calling StringIO#close multiple times no longer raises an exception (#1640).
• Fixed a bug in include file resolution when compiling C extensions.

New features:

• Process.clock_getres has been implemented.

Changes:

• debug, profile, profiler, which were already marked as unsupported, have been removed.
• Our experimental JRuby-compatible Java interop has been removed - use Polyglot and Java instead.
• The Trufle handle patches applied to psych C extension have now been removed.
• The rb_tr_handle_* functions have been removed as they are no longer used in any C extension patches.

Bug fixes:

• autoload :C, "path"; require "path" now correctly triggers the autoload.
• Fixed UDPSocket#bind to specify family and socktype when resolving address.
• The shell standard library can now be require-d.
• Fixed a bug where for could result in a NullPointerException when trying to assign the iteration variable.
• Existing global variables can now become aliases of other global variables (#1590).

Compatibility:

• ERB now uses StringScanner and not the fallback, like on MRI. As a result strscan is required by require 'erb' (#1615).
• Yield different number of arguments for Hash#each and Hash#each_pair based on the block arity like MRI (#1629).
• Add support for the base keyword argument to Dir.{[], glob}.