diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 10746da1e8..739d8d3c72 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -317,7 +317,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - desc: latest releases gcc13 C++20 py3.12 avx2 exr3.2 ocio2.3
+          - desc: latest releases gcc13 C++20 py3.12 avx2 exr3.3 ocio2.3
             nametag: linux-latest-releases
             runner: ubuntu-24.04
             cc_compiler: gcc-13
@@ -325,7 +325,7 @@ jobs:
             cxx_std: 20
             fmt_ver: 11.0.2
             opencolorio_ver: v2.3.2
-            openexr_ver: v3.2.4
+            openexr_ver: v3.3.0
             pybind11_ver: v2.13.5
             python_ver: "3.12"
             simd: avx2,f16c
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index a9473c2af6..e36f7667ca 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -12,11 +12,13 @@ on:
       - '**/analysis.yml'
       - '**.properties'
       - '**.cpp'
+      - '**.cmake'
   pull_request:
     paths-ignore:
       - '**/analysis.yml'
       - '**.properties'
       - '**.cpp'
+      - '**.cmake'
   schedule:
     # Full nightly build
     - cron: "0 8 * * *"
diff --git a/INSTALL.md b/INSTALL.md
index 5df0c33091..42a3e5c683 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -19,9 +19,9 @@ NEW or CHANGED MINIMUM dependencies since the last major release are **bold**.
        CMake configuration flag: `-DCMAKE_CXX_STANDARD=20`, etc.
  * Compilers: **gcc 9.3** - 14.1, **clang 5** - 18, MSVS 2017 - 2019 (**v19.14
    and up**), **Intel icc 19+**, Intel OneAPI C++ compiler 2022+.
- * **CMake >= 3.15** (tested through 3.29)
+ * **CMake >= 3.15** (tested through 3.30)
  * **Imath >= 3.1** (tested through 3.1.x and main)
- * **OpenEXR >= 3.1** (tested through 3.2 and main)
+ * **OpenEXR >= 3.1** (tested through 3.3 and main)
  * **libTIFF >= 4.0** (tested through 4.7)
  * **OpenColorIO >= 2.2** (tested through 2.3 and main)
  * libjpeg >= 8 (tested through jpeg9e), or **libjpeg-turbo >= 2.1** (tested
@@ -49,7 +49,7 @@ NEW or CHANGED MINIMUM dependencies since the last major release are **bold**.
      * OpenJpeg >= 2.0 (tested through 2.5; we recommend 2.4 or higher
        for multithreading support)
  * If you want support for OpenVDB files:
-     * OpenVDB >= 5.0 (tested through 11.0). Note that using OpenVDB >= 10.0
+     * OpenVDB >= 9.0 (tested through 11.0). Note that using OpenVDB >= 10.0
        requires that you compile OIIO with C++17 or higher.
  * If you want to use TBB as the thread pool:
      * TBB >= 2018 (tested through 2021 and OneTBB)
diff --git a/src/build-scripts/build_openexr.bash b/src/build-scripts/build_openexr.bash
index 52d6cbbe48..64c03623b4 100755
--- a/src/build-scripts/build_openexr.bash
+++ b/src/build-scripts/build_openexr.bash
@@ -60,6 +60,7 @@ popd
 
 # Set up paths. These will only affect the caller if this script is
 # run with 'source' rather than in a separate shell.
+export OpenEXR_ROOT=$OPENEXR_INSTALL_DIR
 export OPENEXR_ROOT=$OPENEXR_INSTALL_DIR
 export OPENEXR_LIBRARY_DIR=$OPENEXR_INSTALL_DIR/lib
 export LD_LIBRARY_PATH=$OPENEXR_ROOT/lib:$LD_LIBRARY_PATH
diff --git a/src/cmake/externalpackages.cmake b/src/cmake/externalpackages.cmake
index c8e98c7e2c..612d95a606 100644
--- a/src/cmake/externalpackages.cmake
+++ b/src/cmake/externalpackages.cmake
@@ -57,6 +57,7 @@ checked_find_package (Imath REQUIRED
 
 checked_find_package (OpenEXR REQUIRED
     VERSION_MIN 3.1
+    NO_FP_RANGE_CHECK
     PRINT IMATH_INCLUDES OPENEXR_INCLUDES Imath_VERSION
     )