https://git.ruby-lang.org/ruby.git/commit/?id=bab8051d2d

From bab8051d2d20a13f4aa26330a25e72ccec980f7a Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Wed, 9 Nov 2022 19:36:37 +0900
Subject: [Bug #19100] [DOC] Add NEWS about PRNG update and incompatiblity

---
 NEWS.md | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/NEWS.md b/NEWS.md
index 2b3bbc8390..19f5546fca 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -291,6 +291,11 @@ The following deprecated methods are removed. https://github.com/ruby/ruby/blob/trunk/NEWS.md#L291
 * `Kernel#trust`, `Kernel#untrust`, `Kernel#untrusted?`
   [[Feature #16131]]
 
+### Source code incompatiblity of extension libraries [[Bug #19100]]
+
+* Extension libraries provide PRNG, subclasses of `Random`, need updates.
+  See [PRNG update] below for more information.
+
 ## Stdlib compatibility issues
 
 * `Psych` no longer bundles libyaml sources.
@@ -300,6 +305,16 @@ The following deprecated methods are removed. https://github.com/ruby/ruby/blob/trunk/NEWS.md#L305
 
 ## C API updates
 
+### Updated C APIs
+
+The following APIs are updated.
+
+* PRNG update
+
+    `rb_random_interface_t` updated and versioned.
+    Extension libraries which use this interface and built for older versions.
+    Also `init_int32` function needs to be defined.
+
 ### Removed C APIs
 
 The following deprecated APIs are removed.
@@ -400,3 +415,4 @@ The following deprecated APIs are removed. https://github.com/ruby/ruby/blob/trunk/NEWS.md#L415
 [Feature #19013]: https://bugs.ruby-lang.org/issues/19013
 [Feature #19026]: https://bugs.ruby-lang.org/issues/19026
 [Feature #19060]: https://bugs.ruby-lang.org/issues/19060
+[Bug #19100]:     https://bugs.ruby-lang.org/issues/19100
-- 
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