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Improve NEWS.md for modular GC [DOC]

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Peter Zhu 2024-12-06 10:40:46 -05:00
parent 979543e7bf
commit 5edf1c8feb
Notes: git 2024-12-10 17:59:54 +00:00 
Merged: https://github.com/ruby/ruby/pull/12281
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NEWS.md
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@ -326,16 +326,22 @@ details of the default gems or bundled gems.
[[Feature #20782]]
* Array#each is rewritten in Ruby for better performance [[Feature #20182]].
* Alternative GC implementations can be loaded dynamically. Configure Ruby
`--with-modular-gc` to enable. Alternative GC libraries can be loaded at runtime
using the environment variable `RUBY_GC_LIBRARY`. [[Feature #20351]],
[[Feature #20470]]
* Alternative garbage collector (GC) implementations can be loaded dynamically
through the modular garbage collector feature. To enable this feature,
configure Ruby with `--with-modular-gc` at build time. GC libraries can be
loaded at runtime using the environment variable `RUBY_GC_LIBRARY`.
[[Feature #20351]]
* An experimental GC library is provided based on MMTk. Configure Ruby
`--with-modular-gc`, build as normal, then build the GC library: `make
modular-gc MODULAR_GC=mmtk`. Enable with `RUBY_GC_LIBRARY=mmtk`. This
requires a working Rust compiler, and Cargo on the build machine.
[[Feature #20860]]
* Ruby's built-in garbage collector has been split into a separate file at
`gc/default/default.c` and interacts with Ruby using an API defined in
`gc/gc_impl.h`. The built-in garbage collector can now also be built as a
library using `make modular-gc MODULAR_GC=default` and enabled using the
environment variable `RUBY_GC_LIBRARY=default`. [[Feature #20470]]
* An experimental GC library is provided based on [MMTk](https://www.mmtk.io/).
This GC library can be built using `make modular-gc MODULAR_GC=mmtk` and
enabled using the environment variable `RUBY_GC_LIBRARY=mmtk`. This requires
the Rust toolchain on the build machine. [[Feature #20860]]
## JIT