https://git.ruby-lang.org/ruby.git/commit/?id=07b87f7979

From 07b87f79797c8716f0ee36f3c32879194717ccd6 Mon Sep 17 00:00:00 2001
From: Koichi Sasada <ko1@a...>
Date: Wed, 20 Oct 2021 10:18:54 +0900
Subject: add NEWS entries about debug.gem

---
 NEWS.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/NEWS.md b/NEWS.md
index 2b71603ea5..2bc3ccb48a 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -189,6 +189,8 @@ Excluding feature bug fixes. https://github.com/ruby/ruby/blob/trunk/NEWS.md#L189
 * `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. https://github.com/ruby/ruby/blob/trunk/NEWS.md#L218
 
 ### 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
-- 
cgit v1.2.1


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