diff --git a/INSTALL.md b/INSTALL.md
index fb86988c97..41c0b9aa35 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -23,10 +23,10 @@ NEW or CHANGED MINIMUM dependencies since the last major release are **bold**.
  * **CMake >= 3.15** (tested through 3.27)
  * **OpenEXR/Imath >= 2.4** (recommended: 3.1 or higher; tested through 3.2
    and main) (ADVISORY: We expect that OIIO 2.6 in 2024 will require OpenEXR >= 3.1)
- * libTIFF >= 3.9 (recommended: 4.0+; tested through 4.5)
+ * libTIFF >= 3.9 (recommended: 4.0+; tested through 4.6)
  * libjpeg >= 8 (tested through jpeg9e), or **libjpeg-turbo >= 2.1** (tested
    through 3.0)
- * Boost >= 1.53 (recommended: at least 1.66; tested through 1.81)
+ * Boost >= 1.53 (recommended: at least 1.66; tested through 1.83)
  * **[fmtlib](https://github.com/fmtlib/fmt) >= 7.0** (tested through 10.1).
    If not found at build time, this will be automatically downloaded unless
    the build sets `-DBUILD_MISSING_FMT=OFF`.
@@ -34,7 +34,7 @@ NEW or CHANGED MINIMUM dependencies since the last major release are **bold**.
 ### Optional dependencies -- features may be disabled if not found
  * If you are building the `iv` viewer (which will be disabled if any of
    these are not found):
-     * Qt5 >= 5.6 (tested through 5.15) or Qt6 (tested through 6.4)
+     * Qt5 >= 5.6 (tested through 5.15) or Qt6 (tested through 6.6)
      * OpenGL
  * If you are building the Python bindings or running the testsuite:
      * Python >= 2.7 (tested against 2.7, 3.7, 3.8, 3.9, 3.10, 3.11)
@@ -50,7 +50,7 @@ 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 10.1). Note that using OpenVDB >= 10.0
+     * OpenVDB >= 5.0 (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)
@@ -61,13 +61,13 @@ NEW or CHANGED MINIMUM dependencies since the last major release are **bold**.
      * giflib >= 4.1 (tested through 5.2; 5.0+ is strongly recommended for
        stability and thread safety)
  * If you want support for HEIF/HEIC or AVIF images:
-     * libheif >= 1.3 (1.7 required for AVIF support, tested through 1.16)
+     * libheif >= 1.3 (1.7 required for AVIF support, tested through 1.17)
      * libheif must be built with an AV1 encoder/decoder for AVIF support.
      * Avoid libheif 1.10 on Mac, it is very broken. Libheif 1.11+ is fine.
  * If you want support for DICOM medical image files:
      * DCMTK >= 3.6.1 (tested through 3.6.7)
  * If you want support for WebP images:
-     * WebP >= 0.6.1 (tested through 1.3.1)
+     * WebP >= 0.6.1 (tested through 1.3.2)
  * If you want support for OpenColorIO color transformations:
      * OpenColorIO >= 1.1 (tested through 2.3; 2.0+ is recommended)
  * If you want support for Ptex:
@@ -78,7 +78,7 @@ NEW or CHANGED MINIMUM dependencies since the last major release are **bold**.
    tree, but if you want to use an external, system-installed version (as
    may be required by some software distributions with policies against
    embedding other projects), then just build with `-DUSE_EXTERNAL_PUGIXML=1`.
-   Any PugiXML >= 1.8 should be fine (we have tested through 1.13).
+   Any PugiXML >= 1.8 should be fine (we have tested through 1.14).