[newlib-cygwin/main] Cygwin: add stdbit functions to 3.7.0 release notes

https://sourceware.org/git/gitweb.cgi?p=3Dnewlib-cygwin.git;h=3De6a22144080=
395b44911f3e6d302754e8e11a0e6

commit e6a22144080395b44911f3e6d302754e8e11a0e6
Author:     Corinna Vinschen <[email protected]>
AuthorDate: Fri Apr 17 13:55:41 2026 +0200
Commit:     Corinna Vinschen <[email protected]>
CommitDate: Fri Apr 17 13:56:09 2026 +0200

    Cygwin: add stdbit functions to 3.7.0 release notes
   =20
    Signed-off-by: Corinna Vinschen <[email protected]>

Diff:
---
 winsup/cygwin/release/3.7.0 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/winsup/cygwin/release/3.7.0 b/winsup/cygwin/release/3.7.0
index d5b63b0586a9..6dbe0955409f 100644
--- a/winsup/cygwin/release/3.7.0
+++ b/winsup/cygwin/release/3.7.0
@@ -12,3 +12,9 @@ What's new:
   RLIMIT_NPROC.
=20
 - New API: _Fork.
+
+- New API: C23 stdbit functions stdc_bit_ceil*, stdc_bit_floor*,
+  stdc_bit_width*, stdc_count_ones*, stdc_count_zeros*, stdc_first_leading=
_one*,
+  stdc_first_leading_zero*, stdc_first_trailing_one*, stdc_first_trailing_=
zero*,
+  stdc_has_single_bit*, stdc_leading_ones*, stdc_leading_zeros*,
+  stdc_trailing_ones*, stdc_trailing_zeros*.