[gcc r15-11426] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:6d39b22e3d8167da69fdd39e2d41aeb8a8cac21b

commit r15-11426-g6d39b22e3d8167da69fdd39e2d41aeb8a8cac21b
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Thu Jul 30 00:20:40 2026 +0000

    Daily bump.

Diff:
---
 gcc/DATESTAMP          |  2 +-
 libstdc++-v3/ChangeLog | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index c7b4ba62bfcb..96192f4db24c 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20260729
+20260730
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 1447c8902b22..3bc0f80e0250 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,18 @@
+2026-07-29  Álvaro Begué  <alvaro.begue@gmail.com>
+
+	Backported from master:
+	2026-05-13  Álvaro Begué  <alvaro.begue@gmail.com>
+
+	PR libstdc++/124851
+	* src/c++20/tzdb.cc (ZoneInfo::ZoneInfo(sys_info&&)): Store
+	stdoff only in m_offset (subtract info.save).
+	(ZoneInfo::ZoneInfo(const pair<sys_info, string_view>&)):
+	Likewise.
+	(ZoneInfo::offset()): Document new semantics.
+	(ZoneInfo::to(sys_info&)): Add m_save back to offset() when
+	populating sys_info::offset.
+	* testsuite/std/time/time_zone/numeric_save.cc: New test.
+
 2026-07-16  Jonathan Wakely  <jwakely@redhat.com>
 
 	Backported from master: