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add NEWS entries about debug.gem

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Koichi Sasada 2021-10-20 10:18:54 +09:00
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NEWS.md
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@ -189,6 +189,8 @@ Excluding feature bug fixes.
* `ERB#initialize` warns `safe_level` and later arguments even without -w.
[[Feature #14256]]
* `lib/debug.rb` is replaced with `debug.gem`
## C API updates
* Documented. [[GH-4815]]
@ -216,6 +218,16 @@ Excluding feature bug fixes.
### TypeProf
## Debugger
* A new debugger [debug.gem](https://github.com/ruby/debug) is bundled.
debug.gem is fast debugger implementation and it provides many features
like remote debugging, colorful REPL, IDE (VSCode) integration and more.
It replaces `lib/debug.rb` standard library.
* `rdbg` command is also installed into `bin/` directory to start and control
debugging execution.
## Miscellaneous changes
* lib/objspace/trace.rb is added, which is a tool for tracing the object