diff --git a/.github/workflows/asciidoctor-ghpages.yml b/.github/workflows/asciidoctor-ghpages.yml
index e242df12..6a4c7021 100644
--- a/.github/workflows/asciidoctor-ghpages.yml
+++ b/.github/workflows/asciidoctor-ghpages.yml
@@ -33,7 +33,7 @@ jobs:
     runs-on: ${{ github.repository_owner == 'intel' && 'intel-' || '' }}ubuntu-22.04
     steps:
       - name: Checkout source
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
       - name: Setup Node.js
         uses: actions/setup-node@0a44ba7841725637a19e28fa30b79a866c81b0a6 # v4.0.4
         with:
diff --git a/.gitignore b/.gitignore
index 570978f0..3d1008fa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@
 .cmake-format.yaml
 CMakePresets.json
 /toolchains
+mull.yml
diff --git a/CMakeLists.txt b/CMakeLists.txt
index bbb6d036..6ffef79f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,9 +24,9 @@ include(cmake/string_catalog.cmake)
 
 add_versioned_package("gh:boostorg/mp11#boost-1.83.0")
 fmt_recipe(10.2.1)
-add_versioned_package("gh:intel/cpp-std-extensions#2fc35c7")
-add_versioned_package("gh:intel/cpp-baremetal-concurrency#fef18ca")
-add_versioned_package("gh:intel/cpp-baremetal-senders-and-receivers#113eeff")
+add_versioned_package("gh:intel/cpp-std-extensions#67120f7")
+add_versioned_package("gh:intel/cpp-baremetal-concurrency#630d8bc")
+add_versioned_package("gh:intel/cpp-baremetal-senders-and-receivers#9ea96f9")
 
 add_library(cib INTERFACE)
 target_compile_features(cib INTERFACE cxx_std_20)
diff --git a/include/msg/send.hpp b/include/msg/send.hpp
index 19c71810..84069aad 100644
--- a/include/msg/send.hpp
+++ b/include/msg/send.hpp
@@ -3,12 +3,14 @@
 #include <async/completion_tags.hpp>
 #include <async/concepts.hpp>
 #include <async/connect.hpp>
+#include <async/debug_context.hpp>
 #include <async/schedulers/trigger_scheduler.hpp>
 #include <async/start.hpp>
 #include <async/then.hpp>
 
 #include <stdx/concepts.hpp>
 #include <stdx/ct_string.hpp>
+#include <stdx/type_traits.hpp>
 
 #include <type_traits>
 #include <utility>
@@ -121,4 +123,14 @@ template <stdx::ct_string Name, _send_recv::valid_send_action S, typename F,
     return std::forward<S>(s) |
            then_receive<Name>(std::forward<F>(f), std::forward<Args>(args)...);
 }
+
+struct send_t;
 } // namespace msg
+
+template <typename... Ts>
+struct async::debug::context_for<msg::_send_recv::op_state<Ts...>> {
+    using tag = msg::send_t;
+    constexpr static auto name = stdx::ct_string{"msg_send"};
+    using type = msg::_send_recv::op_state<Ts...>;
+    using children = stdx::type_list<>;
+};