diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6aea52f78fa..8979d546020 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,21 @@
+2023-06-23  Richard Biener  <rguenther@suse.de>
+
+	Backported from master:
+	2023-06-19  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/110298
+	* tree-ssa-loop-ivcanon.cc (tree_unroll_loops_completely):
+	Clear number of iterations info before cleaning up the CFG.
+
+2023-06-23  Richard Biener  <rguenther@suse.de>
+
+	Backported from master:
+	2023-06-09  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/110182
+	* match.pd (two conversions in a row): Use element_precision
+	to DTRT for VECTOR_TYPE.
+
 2023-06-22  Alex Coplan  <alex.coplan@arm.com>
 
 	Backported from master:
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 0d054fa2ec3..cbffb8130b6 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20230623
+20230624
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 0ed53723264..ec39d336379 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,11 @@
+2023-06-23  Richard Biener  <rguenther@suse.de>
+
+	Backported from master:
+	2023-06-19  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/110298
+	* gcc.dg/torture/pr110298.c: New testcase.
+
 2023-06-22  Alex Coplan  <alex.coplan@arm.com>
 
 	Backported from master:
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index bf1868bccd2..bb874201610 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,12 @@
+2023-06-23  Jonathan Wakely  <jwakely@redhat.com>
+
+	Backported from master:
+	2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
+
+	* doc/xml/manual/evolution.xml: Document removal of implicit
+	allocator rebinding extensions in strict mode and for C++20.
+	* doc/html/*: Regenerate.
+
 2023-06-21  Jason Merrill  <jason@redhat.com>
 
 	PR tree-optimization/105651