diff --git a/ChangeLog b/ChangeLog
index 47b09e657d1a69e9722a1fb90dc9c075028e7518..9caafc53d32459ce23b9bdd2459ce99512d760dd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2020-08-20 Tobias Burnus <tobias@codesourcery.com>
+
+ PR bootstrap/96612
+ * configure.ac: Run AX_CXX_COMPILE_STDCXX also for ${build} compiler,
+ if not the same as ${host}.
+ * configure: Regenerate.
+
2020-08-16 Sergei Trofimovich <slyfox@gcc.gnu.org>
* MAINTAINERS (Write After Approval): Add myself.
diff --git a/config/ChangeLog b/config/ChangeLog
index 83543a18d6dcd5618797b1e1080eecbccd375735..40896bcc1a506509ec810d904808c120d14f644f 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,9 @@
+2020-08-20 Tobias Burnus <tobias@codesourcery.com>
+
+ PR bootstrap/96612
+ * ax_cxx_compile_stdcxx.m4: Add fourth argument to check also
+ the CXX_FOR_BUILD compiler.
+
2020-07-30 H.J. Lu <hjl.tools@gmail.com>
PR bootstrap/96202
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index fbe0f179431feed6eee8e87bde43a99240b16e78..2f9ecd2e70245661aac19b9eb96d09c5a03faf40 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,16 @@
+2020-08-20 Iain Buclaw <ibuclaw@gdcproject.org>
+
+ * config/vxworks.h (VXWORKS_ADDITIONAL_CPP_SPEC): Don't include
+ VxWorks header files if -fself-test is used.
+ (STARTFILE_PREFIX_SPEC): Avoid using VSB_DIR if -fself-test is used.
+
+2020-08-20 Joe Ramsay <Joe.Ramsay@arm.com>
+
+ PR target/96683
+ * config/arm/mve.md (mve_vst1q_f<mode>): Require MVE memory operand for
+ destination.
+ (mve_vst1q_<supf><mode>): Likewise.
+
2020-08-19 2020-08-19 Carl Love <cel@us.ibm.com>
* config/rs6000/rs6000-builtin.def (BU_P10V_0, BU_P10V_1,
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 7829179094cd70c853ac93a8d5a200f8cddac151..7ead96493357530eca3a12fe4c40582427c23ff2 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20200820
+20200821
diff --git a/gcc/analyzer/ChangeLog b/gcc/analyzer/ChangeLog
index cfb6a6e50b51294e96c696a55a92862415dc88a7..d20e8c756ccb2df56453227b90d24acc98371afb 100644
--- a/gcc/analyzer/ChangeLog
+++ b/gcc/analyzer/ChangeLog
@@ -1,3 +1,20 @@
+2020-08-20 David Malcolm <dmalcolm@redhat.com>
+
+ PR analyzer/96723
+ * region-model-manager.cc
+ (region_model_manager::get_field_region): Assert that field is a
+ FIELD_DECL.
+ * region.cc (region::get_subregions_for_binding): In
+ union-handling, filter the TYPE_FIELDS traversal to just FIELD_DECLs.
+
+2020-08-20 David Malcolm <dmalcolm@redhat.com>
+
+ PR analyzer/96713
+ * region-model.cc (region_model::get_gassign_result): For
+ comparisons, only use eval_condition when the lhs has boolean
+ type, and use get_or_create_constant_svalue on the boolean
+ constants directly rather than via get_rvalue.
+
2020-08-19 David Malcolm <dmalcolm@redhat.com>
PR analyzer/96643
diff --git a/gcc/d/ChangeLog b/gcc/d/ChangeLog
index 3910e0f6fbead831ec2eab88bced6fd89d2f0e42..046967693852dd50fa78c8f87dc57ab3716735e6 100644
--- a/gcc/d/ChangeLog
+++ b/gcc/d/ChangeLog
@@ -1,3 +1,7 @@
+2020-08-20 Iain Buclaw <ibuclaw@gdcproject.org>
+
+ * dmd/MERGE: Merge upstream dmd 1b5a53d01.
+
2020-08-18 Iain Buclaw <ibuclaw@gdcproject.org>
PR d/96301
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 1febec31e9dfefe8fcb0bcd7744ac5cd294e4f06..b43e91eb66e868bc498692eabee37f3eea010a34 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,23 @@
+2020-08-20 Paul Thomas <pault@gcc.gnu.org>
+
+ PR fortran/96100
+ PR fortran/96101
+ * trans-array.c (get_array_charlen): Tidy up the evaluation of
+ the string length for array constructors. Avoid trailing array
+ references. Ensure string lengths of deferred length components
+ are set. For parentheses operator apply string length to both
+ the primary expression and the enclosed expression.
+
+2020-08-20 Andre Vehreschild <vehre@gcc.gnu.org>
+
+ PR fortran/94958
+ * trans-array.c (gfc_bcast_alloc_comp): Use the correct variable.
+
+2020-08-20 Tobias Burnus <tobias@codesourcery.com>
+
+ * openmp.c (gfc_match_omp_clauses): Re-order 'if' clause pasing
+ to avoid creating spurious symbols.
+
2020-08-18 Harald Anlauf <anlauf@gmx.de>
* check.c (check_rest): Reject MIN/MAX character arguments of
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index ed39ca9e8f7e3b95f9acfce874bde60386d1c49c..a369f61f89c8ccdd6396fd601be0606fdfb5decb 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,55 @@
+2020-08-20 David Malcolm <dmalcolm@redhat.com>
+
+ PR analyzer/96723
+ * g++.dg/analyzer/pr96723.C: New test.
+
+2020-08-20 Paul Thomas <pault@gcc.gnu.org>
+
+ PR fortran/96100
+ PR fortran/96101
+ * gfortran.dg/char_length_23.f90: New test.
+
+2020-08-20 Joe Ramsay <Joe.Ramsay@arm.com>
+
+ PR target/96683
+ * gcc.target/arm/mve/intrinsics/vst1q_f16.c: New test.
+ * gcc.target/arm/mve/intrinsics/vst1q_s16.c: New test.
+ * gcc.target/arm/mve/intrinsics/vst1q_s8.c: New test.
+ * gcc.target/arm/mve/intrinsics/vst1q_u16.c: New test.
+ * gcc.target/arm/mve/intrinsics/vst1q_u8.c: New test.
+
+2020-08-20 Tobias Burnus <tobias@codesourcery.com>
+
+ * gfortran.dg/gomp/pr67500.f90: New file.
+
+2020-08-20 Christophe Lyon <christophe.lyon@linaro.org>
+
+ * lib/target-supports.exp (arm_soft_ok): Remove arm32 check.
+
+2020-08-20 Christophe Lyon <christophe.lyon@linaro.org>
+
+ * gcc.target/arm/pure-code/pure-code.exp: Skip for
+ arm*-*-uclinuxfdpiceabi. Fix missing closing bracket.
+
+2020-08-20 Mark Eggleston <markeggleston@gcc.gnu.org>
+
+ PR fortran/96436
+ * gfortran.dg/pr96436_1.f90: New test.
+ * gfortran.dg/pr96436_2.f90: New test.
+ * gfortran.dg/pr96436_3.f90: New test.
+ * gfortran.dg/pr96436_4.f90: New test.
+ * gfortran.dg/pr96436_5.f90: New test.
+ * gfortran.dg/pr96436_6.f90: New test.
+ * gfortran.dg/pr96436_7.f90: New test.
+ * gfortran.dg/pr96436_8.f90: New test.
+ * gfortran.dg/pr96436_9.f90
+ * gfortran.dg/pr96436_10.f90
+
+2020-08-20 David Malcolm <dmalcolm@redhat.com>
+
+ PR analyzer/96713
+ * gcc.dg/analyzer/pr96713.c: New test.
+
2020-08-19 Jason Merrill <jason@redhat.com>
DR 2369
diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index 9b868d3fe23b0bc8773ddffb858d3bb2ca6aec33..b2e7d7bf5d92f382dfe46992fc9e2c293b4b47ee 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,11 @@
+2020-08-20 Mark Eggleston <markeggleston@gcc.gnu.org>
+
+ PR fortran/96436
+ * io/format.c (parse_format_list): Add new local variable
+ "standard" to hold the required standard to check. If the
+ format width is zero select standard depending on descriptor.
+ Call notification_std using the new standard variable.
+
2020-08-17 David Edelsohn <dje.gcc@gmail.com>
Clement Chigot <clement.chigot@atos.net>
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 2c18cdab0be6fa5e84f2b9d495da4f8929449218..f39515ff84c8653f848352afcb887066936cbb96 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,14 @@
+2020-08-20 Chung-Lin Tang <cltang@codesourcery.com>
+
+ * plugin/plugin-nvptx.c (nvptx_free):
+ Change "GOMP_PLUGIN_acc_thread () == NULL" test into check of
+ CUDA_ERROR_NOT_PERMITTED status for cuMemGetAddressRange. Adjust
+ comments.
+
+2020-08-20 Tobias Burnus <tobias@codesourcery.com>
+
+ * testsuite/libgomp.fortran/lastprivate-conditional-10.f90: New test.
+
2020-08-13 Kwok Cheung Yeung <kcy@codesourcery.com>
* testsuite/libgomp.c-c++-common/reduction-16.c: New.
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index aa886a7561210171f2c6cd1f3aad3b172b2a54c5..3966e48c8e58def6a3bbbf0c877dcf938046e9dc 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,11 @@
+2020-08-20 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/iterator_concepts.h [__STRICT_ANSI__]
+ (incrementable_traits<__int128>): Define specialization.
+ (incrementable_traits<unsigned __int128>): Likewise.
+ * testsuite/std/ranges/iota/96042.cc: Test iota_view with
+ __int128.
+
2020-08-19 Jonathan Wakely <jwakely@redhat.com>
Patrick Palka <ppalka@redhat.com>