--- CMakeLists.txt.orig	2021-02-05 19:21:38 UTC
+++ CMakeLists.txt
@@ -199,7 +199,7 @@ mark_as_advanced(
 # @note  Blosc version is currently treated as exception which must be adhered
 # to. The minimum version must be at least 1.5.0. Previous versions are incompatible.
 # Later versions (including 1.5.4), can be buggy on certain platforms.
-set(MINIMUM_BLOSC_VERSION 1.5.0)
+set(MINIMUM_BLOSC_VERSION 1.15)
 # @note  ABI always enforced so the correct deprecation messages are available.
 # OPENVDB_USE_DEPRECATED_ABI_<VERSION> should be used to circumvent this
 set(MINIMUM_OPENVDB_ABI_VERSION 6)
@@ -214,13 +214,13 @@ if(NOT DISABLE_DEPENDENCY_VERSION_CHECKS)
   set(MINIMUM_MSVC_VERSION 19.10)
 
   set(MINIMUM_BOOST_VERSION 1.61)  # @warning should be 1.66, but H18 ships with 1.61
-  set(MINIMUM_ILMBASE_VERSION 2.2) # @warning should be 2.3, but H18 ships with 2.2
-  set(MINIMUM_OPENEXR_VERSION 2.2) # @warning should be 2.3, but H18 ships with 2.2
+  set(MINIMUM_ILMBASE_VERSION 3.0) # @warning should be 2.3, but H18 ships with 2.2
+  set(MINIMUM_OPENEXR_VERSION 3.0) # @warning should be 2.3, but H18 ships with 2.2
   set(MINIMUM_ZLIB_VERSION 1.2.7)
   set(MINIMUM_TBB_VERSION 2018.0)
   set(MINIMUM_LLVM_VERSION 6.0.0)
 
-  set(MINIMUM_PYTHON_VERSION 2.7)
+  set(MINIMUM_PYTHON_VERSION ${FREEBSD_PYTHON_VER})
   set(MINIMUM_NUMPY_VERSION 1.14.0)
 
   set(MINIMUM_GOOGLETEST_VERSION 1.8)