diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index af23bbb..74f0b02 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,13 +19,13 @@ jobs:
         include:
           - toolset: gcc-5
             cxxstd: "03,11,14,1z"
-            os: ubuntu-latest
             container: ubuntu:18.04
+            os: ubuntu-latest
             install: g++-5
           - toolset: gcc-6
             cxxstd: "03,11,14,1z"
-            os: ubuntu-latest
             container: ubuntu:18.04
+            os: ubuntu-latest
             install: g++-6
           - toolset: gcc-7
             cxxstd: "03,11,14,17"
@@ -52,26 +52,26 @@ jobs:
             install: g++-12
           - toolset: gcc-13
             cxxstd: "03,11,14,17,20,2b"
-            os: ubuntu-latest
             container: ubuntu:23.04
+            os: ubuntu-latest
             install: g++-13
           - toolset: clang
             compiler: clang++-3.9
             cxxstd: "03,11,14"
-            os: ubuntu-latest
             container: ubuntu:18.04
+            os: ubuntu-latest
             install: clang-3.9
           - toolset: clang
             compiler: clang++-4.0
             cxxstd: "03,11,14"
-            os: ubuntu-latest
             container: ubuntu:18.04
+            os: ubuntu-latest
             install: clang-4.0
           - toolset: clang
             compiler: clang++-5.0
             cxxstd: "03,11,14,1z"
-            os: ubuntu-latest
             container: ubuntu:18.04
+            os: ubuntu-latest
             install: clang-5.0
           - toolset: clang
             compiler: clang++-6.0
@@ -108,24 +108,33 @@ jobs:
           - toolset: clang
             compiler: clang++-13
             cxxstd: "03,11,14,17,20,2b"
-            os: ubuntu-22.04
+            container: ubuntu:22.04
+            os: ubuntu-latest
             install: clang-13
           - toolset: clang
             compiler: clang++-14
             cxxstd: "03,11,14,17,20,2b"
-            os: ubuntu-22.04
+            container: ubuntu:22.04
+            os: ubuntu-latest
             install: clang-14
           - toolset: clang
             compiler: clang++-15
             cxxstd: "03,11,14,17,20,2b"
-            os: ubuntu-22.04
+            container: ubuntu:22.04
+            os: ubuntu-latest
             install: clang-15
           - toolset: clang
             compiler: clang++-16
             cxxstd: "03,11,14,17,20,2b"
-            os: ubuntu-latest
             container: ubuntu:23.04
+            os: ubuntu-latest
             install: clang-16
+          - toolset: clang
+            compiler: clang++-17
+            cxxstd: "03,11,14,17,20,2b"
+            container: ubuntu:23.10
+            os: ubuntu-latest
+            install: clang-17
           - toolset: clang
             cxxstd: "03,11,14,17,2a"
             os: macos-11
@@ -194,7 +203,7 @@ jobs:
       matrix:
         include:
           - toolset: msvc-14.0
-            cxxstd: "14"
+            cxxstd: "14,latest"
             addrmd: 32,64
             os: windows-2019
           - toolset: msvc-14.2