diff --git a/.drone.jsonnet b/.drone.jsonnet
index 9b8a5b3..df1f942 100644
--- a/.drone.jsonnet
+++ b/.drone.jsonnet
@@ -99,7 +99,7 @@ local windows_pipeline(name, image, environment, arch = "amd64") =
     linux_pipeline(
         "Linux 16.04 GCC 4.8 32/64",
         "cppalliance/droneubuntu1604:1",
-        { TOOLSET: 'gcc', COMPILER: 'g++', CXXSTD: '11', ADDRMD: '32,64' },
+        { TOOLSET: 'gcc', COMPILER: 'g++-4.8', CXXSTD: '11', ADDRMD: '32,64' },
         "g++-4.8-multilib",
     ),
 
@@ -177,44 +177,37 @@ local windows_pipeline(name, image, environment, arch = "amd64") =
     ),
 
     linux_pipeline(
-        "Linux 23.04 GCC 13 32 ASAN",
+        "Linux 23.04 GCC 13 32/64",
         "cppalliance/droneubuntu2304:1",
-        { TOOLSET: 'gcc', COMPILER: 'g++-13', CXXSTD: '11,14,17,20,2b', ADDRMD: '32' } + asan,
+        { TOOLSET: 'gcc', COMPILER: 'g++-13', CXXSTD: '11,14,17,20,2b', ADDRMD: '32,64' },
         "g++-13-multilib",
     ),
 
     linux_pipeline(
-        "Linux 23.04 GCC 13 64 ASAN",
-        "cppalliance/droneubuntu2304:1",
-        { TOOLSET: 'gcc', COMPILER: 'g++-13', CXXSTD: '11,14,17,20,2b', ADDRMD: '64' } + asan,
-        "g++-13-multilib",
-    ),
-
-    linux_pipeline(
-        "Linux 23.04 GCC 13 32 UBSAN",
-        "cppalliance/droneubuntu2304:1",
-        { TOOLSET: 'gcc', COMPILER: 'g++-13', CXXSTD: '11,14,17,20,2b', ADDRMD: '32' } + ubsan,
-        "g++-13-multilib",
-    ),
-
-    linux_pipeline(
-        "Linux 23.04 GCC 13 64 UBSAN",
-        "cppalliance/droneubuntu2304:1",
-        { TOOLSET: 'gcc', COMPILER: 'g++-13', CXXSTD: '11,14,17,20,2b', ADDRMD: '64' } + ubsan,
-        "g++-13-multilib",
-    ),
-
-    linux_pipeline(
-        "Linux 24.04 GCC 14 32",
+        "Linux 24.04 GCC 14 32 ASAN",
         "cppalliance/droneubuntu2404:1",
-        { TOOLSET: 'gcc', COMPILER: 'g++-14', CXXSTD: '11,14,17,20,2b', ADDRMD: '32' },
+        { TOOLSET: 'gcc', COMPILER: 'g++-14', CXXSTD: '11,14,17,20,2b', ADDRMD: '32' } + asan,
         "g++-14-multilib",
     ),
 
     linux_pipeline(
-        "Linux 24.04 GCC 14 64",
+        "Linux 24.04 GCC 14 64 ASAN",
         "cppalliance/droneubuntu2404:1",
-        { TOOLSET: 'gcc', COMPILER: 'g++-14', CXXSTD: '11,14,17,20,2b', ADDRMD: '64' },
+        { TOOLSET: 'gcc', COMPILER: 'g++-14', CXXSTD: '11,14,17,20,2b', ADDRMD: '64' } + asan,
+        "g++-14-multilib",
+    ),
+
+    linux_pipeline(
+        "Linux 24.04 GCC 14 32 UBSAN",
+        "cppalliance/droneubuntu2404:1",
+        { TOOLSET: 'gcc', COMPILER: 'g++-14', CXXSTD: '11,14,17,20,2b', ADDRMD: '32' } + ubsan,
+        "g++-14-multilib",
+    ),
+
+    linux_pipeline(
+        "Linux 24.04 GCC 14 64 UBSAN",
+        "cppalliance/droneubuntu2404:1",
+        { TOOLSET: 'gcc', COMPILER: 'g++-14', CXXSTD: '11,14,17,20,2b', ADDRMD: '64' } + ubsan,
         "g++-14-multilib",
     ),
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e20d315..c7fc0ec 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -159,9 +159,6 @@ jobs:
             container: ubuntu:24.04
             os: ubuntu-latest
             install: clang-18
-          - toolset: clang
-            cxxstd: "11,14,17,2a"
-            os: macos-11
           - toolset: clang
             cxxstd: "11,14,17,20,2b"
             os: macos-12
@@ -180,6 +177,10 @@ jobs:
         shell: bash
 
     steps:
+      - name: Enable Node 16
+        run: |
+          echo "ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true" >> $GITHUB_ENV
+
       - uses: actions/checkout@v3
 
       - name: Setup container environment
@@ -292,9 +293,9 @@ jobs:
         include:
           - os: ubuntu-20.04
           - os: ubuntu-22.04
-          - os: macos-11
           - os: macos-12
           - os: macos-13
+          - os: macos-14
 
     runs-on: ${{matrix.os}}
 
@@ -340,9 +341,9 @@ jobs:
         include:
           - os: ubuntu-20.04
           - os: ubuntu-22.04
-          - os: macos-11
           - os: macos-12
           - os: macos-13
+          - os: macos-14
 
     runs-on: ${{matrix.os}}
 
@@ -398,9 +399,9 @@ jobs:
         include:
           - os: ubuntu-20.04
           - os: ubuntu-22.04
-          - os: macos-11
           - os: macos-12
           - os: macos-13
+          - os: macos-14
 
     runs-on: ${{matrix.os}}
 
diff --git a/include/boost/variant2/variant.hpp b/include/boost/variant2/variant.hpp
index 71f6eaa..3eb5342 100644
--- a/include/boost/variant2/variant.hpp
+++ b/include/boost/variant2/variant.hpp
@@ -83,7 +83,7 @@ struct monostate
 {
 };
 
-#if !BOOST_WORKAROUND(BOOST_MSVC, < 1940)
+#if !BOOST_WORKAROUND(BOOST_MSVC, < 1950)
 
 constexpr bool operator<(monostate, monostate) noexcept { return false; }
 constexpr bool operator>(monostate, monostate) noexcept { return false; }
diff --git a/test/variant_json_value_from.cpp b/test/variant_json_value_from.cpp
index 9734c74..be5dc3a 100644
--- a/test/variant_json_value_from.cpp
+++ b/test/variant_json_value_from.cpp
@@ -2,6 +2,12 @@
 // Distributed under the Boost Software License, Version 1.0.
 // https://www.boost.org/LICENSE_1_0.txt
 
+#include <boost/config.hpp>
+
+#if defined(BOOST_GCC) && BOOST_GCC < 50000
+# define BOOST_ALLOW_DEPRECATED
+#endif
+
 #include <boost/variant2/variant.hpp>
 #include <boost/json/value_from.hpp>
 #include <boost/json/serialize.hpp>
diff --git a/test/variant_json_value_to.cpp b/test/variant_json_value_to.cpp
index 1263931..5b42cc0 100644
--- a/test/variant_json_value_to.cpp
+++ b/test/variant_json_value_to.cpp
@@ -2,6 +2,12 @@
 // Distributed under the Boost Software License, Version 1.0.
 // https://www.boost.org/LICENSE_1_0.txt
 
+#include <boost/config.hpp>
+
+#if defined(BOOST_GCC) && BOOST_GCC < 50000
+# define BOOST_ALLOW_DEPRECATED
+#endif
+
 #include <boost/variant2/variant.hpp>
 #include <boost/json/value_to.hpp>
 #include <boost/json/serialize.hpp>