+2020-05-21 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/experimental/executor (use_future_t::use_future_t()): Fix
+ incorrect noexcept-specifier.
+ * include/experimental/internet (basic_resolver_results): Adjust
+ whitespace.
+ * include/experimental/socket (__basic_socket_impl::release): Add
+ member function.
+ (basic_socket(io_context&, const endpoint_type&)): Fix argument to
+ target constructor.
+ (basic_socket::release(), basic_socket::release(error_code&)): Add
+ missing member functions.
+ (basic_socket::is_open()): Add nodiscard attribute.
+ (basic_socket::close(error_code&)): Pass argument to base function.
+ (basic_socket_acceptor::release())
+ (basic_socket_acceptor::release(error_code&)): Add missing member
+ functions.
+ (basic_socket_acceptor::is_open()): Add nodiscard attribute.
+ (basic_socket_streambuf::error()): Add noexcept.
+ (basic_socket_iostream::error()): Likewise.
+ * testsuite/experimental/net/socket/basic_socket.cc: New test.
+
+ * include/experimental/buffer: Replace typedefs with
+ alias-declarations.
+ * include/experimental/executor: Likewise.
+ * include/experimental/internet: Likewise.
+ * include/experimental/socket: Likewise.
+ * include/experimental/timer: Likewise.
+
+2020-05-19 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/94087
+ * src/c++11/random.cc (__x86_rdseed): Allow fallback function to be
+ passed in.
+ (__x86_rdseed_rdrand): New function that uses rdseed with rdrand
+ fallback.
+ (random_device::_M_init): Use __x86_rdseed_rdrand when both
+ instructions are available.
+ * testsuite/26_numerics/random/random_device/94087.cc: New test.
+
+2020-05-19 Patrick Palka <ppalka@redhat.com>
+
+ PR c++/66439
+ * testsuite/20_util/pair/astuple/get_neg.cc: Prune "type/value
+ mismatch" messages.
+ * testsuite/20_util/tuple/element_access/get_neg.cc: Likewise.
+
+2020-05-15 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR bootstrap/95147
+ * configure: Regenerated.
+
+2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
+
+ * configure: Regenerated.
+
+2020-05-13 Alexandre Oliva <oliva@adacore.com>
+
+ PR libstdc++/77691
+ * include/experimental/memory_resource
+ (__resource_adaptor_imp::do_allocate): Handle max_align_t on
+ x86-vxworks as on x86-solaris.
+ (__resource_adaptor_imp::do_deallocate): Likewise.
+ * testsuite/experimental/memory_resource/new_delete_resource.cc:
+ Drop xfail.
+ (BAD_MAX_ALIGN_T): Define on x86-vxworks as on x86-solaris.
+ (test03): Drop max-align test for char-aligned alloc.
+
+2020-05-08 Ulrich Drepper <drepper@redhat.com>
+
+ * include/bits/atomic_base.h (atomic_flag): Implement test member
+ function.
+ * include/std/version: Define __cpp_lib_atomic_flag_test.
+ * testsuite/29_atomics/atomic_flag/test/explicit.cc: New file.
+ * testsuite/29_atomics/atomic_flag/test/implicit.cc: New file.
+
2020-05-07 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/94971 (partial)