diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e8951ebcb1..a0eede4bde 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -84,7 +84,7 @@ jobs:
       fail-fast: false
       matrix:
         compiler: [ g++-13, clang++-19 ]
-        standard: [ c++14, c++17, c++20, c++23 ]
+        standard: [ c++17, c++20, c++23 ]
     steps:
       - uses: actions/checkout@v6
         with:
@@ -142,7 +142,7 @@ jobs:
       fail-fast: false
       matrix:
         toolset: [ clang ]
-        standard: [ 14, 17, 20 ]
+        standard: [ 17, 20 ]
         suite: [ github_ci_block_1, github_ci_block_2 ]
     steps:
       - uses: actions/checkout@v6
@@ -185,7 +185,7 @@ jobs:
       fail-fast: false
       matrix:
         toolset: [ gcc ]
-        standard: [ 14 ]
+        standard: [ 17 ]
         suite: [ github_ci_block_1, github_ci_block_2 ]
     steps:
       - uses: actions/checkout@v6
@@ -228,7 +228,7 @@ jobs:
       fail-fast: false
       matrix:
         toolset: [ msvc-14.3, clang-win ]
-        standard: [ 14, 17, latest ]
+        standard: [ 17, latest ]
         suite: [ github_ci_block_1, github_ci_block_2 ]
     steps:
       - uses: actions/checkout@v6
@@ -384,7 +384,7 @@ jobs:
       fail-fast: false
       matrix:
         compiler: [ g++-13 ]
-        standard: [ c++14, c++17, c++20, c++23 ]
+        standard: [ c++17, c++20, c++23 ]
         suite: [ github_ci_block_1, github_ci_block_2 ]
     steps:
       - uses: actions/checkout@v6
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 15062f4fa9..e8d77b8a83 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -1100,7 +1100,7 @@ test-suite interpolators :
    [ run cohen_acceleration_test.cpp  : : : <toolset>msvc:<cxxflags>/bigobj [ requires cxx17_if_constexpr cxx17_std_apply ]  $(float128_type) ]
    [ compile compile_test/filters_daubechies_incl_test.cpp : [ requires cxx17_if_constexpr cxx17_std_apply ]  ]
    [ compile compile_test/sf_daubechies_scaling_incl_test.cpp : [ requires cxx17_if_constexpr cxx17_std_apply ]  ]
-   [ run whittaker_shannon_test.cpp : : :  [ requires cxx11_auto_declarations cxx11_constexpr cxx11_smart_ptr cxx11_defaulted_functions ] ]
+   [ run whittaker_shannon_test.cpp : : :  [ requires cxx11_auto_declarations cxx11_constexpr cxx11_smart_ptr cxx11_defaulted_functions ] $(float128_type) ]
    [ run cardinal_quadratic_b_spline_test.cpp : : :  [ requires cxx11_auto_declarations cxx11_constexpr cxx11_smart_ptr cxx11_defaulted_functions ] ]
    [ run cardinal_quintic_b_spline_test.cpp : : :  [ requires cxx11_auto_declarations cxx11_constexpr cxx11_smart_ptr cxx11_defaulted_functions ] $(float128_type) ]
    [ run makima_test.cpp /boost/circular_buffer//boost_circular_buffer : : :  [ requires cxx17_if_constexpr cxx17_std_apply ]  $(float128_type) ]