diff --git a/.github/workflows/pull_request.yaml b/.github/workflows/pull_request.yaml
index 8bf142a7..a9527041 100644
--- a/.github/workflows/pull_request.yaml
+++ b/.github/workflows/pull_request.yaml
@@ -32,10 +32,10 @@ jobs:
   test_library:
     uses: NWChemEx/.github/.github/workflows/test_nwx_library.yaml@master
     with:
-      compilers: '["gcc-11", "clang-14"]'
+      compilers: '["gcc-14", "clang-19"]'
 
   test_library_with_sigma:
     uses: NWChemEx/.github/.github/workflows/test_nwx_library.yaml@master
     with:
-      compilers: '["gcc-11", "clang-14"]'
+      compilers: '["gcc-14", "clang-19"]'
       repo_toolchain: ".github/enable_sigma.cmake"
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2ade5882..2cabe7d6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,6 +20,7 @@ include(cmake/get_nwx_cmake.cmake)
 #Sets the version to whatever git thinks it is
 include(get_version_from_git)
 get_version_from_git(tensorwrapper_version "${CMAKE_CURRENT_LIST_DIR}")
+set(CMAKE_CXX_STANDARD 20)
 project(tensorwrapper VERSION "${tensorwrapper_version}" LANGUAGES CXX)
 
 include(nwx_versions)
diff --git a/include/tensorwrapper/shape/smooth_view.hpp b/include/tensorwrapper/shape/smooth_view.hpp
index f26d412e..b65cb7c3 100644
--- a/include/tensorwrapper/shape/smooth_view.hpp
+++ b/include/tensorwrapper/shape/smooth_view.hpp
@@ -198,7 +198,7 @@ class SmoothView {
      *
      *  @throw None No throw guarantee.
      */
-    bool operator==(const SmoothView<const SmoothType>& rhs) const noexcept;
+    bool operator==(const SmoothView& rhs) const noexcept;
 
     /** @brief Is *this different from @p rhs?
      *
diff --git a/src/tensorwrapper/shape/smooth_view.cpp b/src/tensorwrapper/shape/smooth_view.cpp
index 78aa5aa6..ccdadc3a 100644
--- a/src/tensorwrapper/shape/smooth_view.cpp
+++ b/src/tensorwrapper/shape/smooth_view.cpp
@@ -70,11 +70,10 @@ void SMOOTH_VIEW::swap(SmoothView& rhs) noexcept {
 }
 
 TPARAMS
-bool SMOOTH_VIEW::operator==(
-  const SmoothView<const SmoothType>& rhs) const noexcept {
+bool SMOOTH_VIEW::operator==(const SmoothView<SmoothType>& rhs) const noexcept {
     if(has_pimpl_() != rhs.has_pimpl_()) return false;
     if(!has_pimpl_()) return true;
-    return m_pimpl_->as_const()->are_equal(*rhs.m_pimpl_);
+    return m_pimpl_->are_equal(*rhs.m_pimpl_);
 }
 
 TPARAMS