diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9b705f0c..ab45c940 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,26 +3,17 @@ name: Ubuntu CI
 on: [push, pull_request]
 
 jobs:
-  focal-ci:
+  jammy-ci:
     runs-on: ubuntu-latest
-    name: Ubuntu Focal CI
+    name: Ubuntu Jammy CI
     steps:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Compile and test
         id: ci
-        uses: gazebo-tooling/action-gz-ci@focal
+        uses: gazebo-tooling/action-gz-ci@jammy
         with:
           codecov-enabled: true
           cppcheck-enabled: true
           cpplint-enabled: true
           doxygen-enabled: true
-  jammy-ci:
-    runs-on: ubuntu-latest
-    name: Ubuntu Jammy CI
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Compile and test
-        id: ci
-        uses: gazebo-tooling/action-gz-ci@jammy
diff --git a/CMakeLists.txt b/CMakeLists.txt
index af52d75b..01c4368d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -153,7 +153,6 @@ configure_file(${CMAKE_SOURCE_DIR}/tutorials.md.in ${CMAKE_BINARY_DIR}/tutorials
 gz_create_docs(
   API_MAINPAGE_MD "${CMAKE_BINARY_DIR}/api.md"
   TUTORIALS_MAINPAGE_MD "${CMAKE_BINARY_DIR}/tutorials.md"
-  AUTOGENERATED_DOC "${CMAKE_BINARY_DIR}/include/gz/msgs/details"
   TAGFILES
     "${GZ-MATH_DOXYGEN_TAGFILE} = ${GZ-MATH_API_URL}"
 )
diff --git a/proto/gz/msgs/sky.proto b/proto/gz/msgs/sky.proto
index aa6494fc..bff84752 100644
--- a/proto/gz/msgs/sky.proto
+++ b/proto/gz/msgs/sky.proto
@@ -41,4 +41,7 @@ message Sky
   Color cloud_ambient   = 7;
   double humidity       = 8;
   double mean_cloud_size = 9;
+
+  /// \brief Cubemap URI for the sky, usually a .dds file.
+  string cubemap_uri    = 10;
 }