diff --git a/module/regex.cxx b/module/regex.cxx
index 01669294..29d3bff8 100644
--- a/module/regex.cxx
+++ b/module/regex.cxx
@@ -1,7 +1,7 @@
 
 module;
 
-#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))
+#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))
 #define BOOST_REGEX_USE_STD_MODULE
 #endif
 
diff --git a/module/regex_create_char.cpp b/module/regex_create_char.cpp
index 81caf1c4..786841db 100644
--- a/module/regex_create_char.cpp
+++ b/module/regex_create_char.cpp
@@ -1,7 +1,7 @@
 
 module;
 
-#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))
+#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))
 #define BOOST_REGEX_USE_STD_MODULE
 #endif
 
diff --git a/module/regex_create_wchar_t.cpp b/module/regex_create_wchar_t.cpp
index 21abe6e4..e0d61a4a 100644
--- a/module/regex_create_wchar_t.cpp
+++ b/module/regex_create_wchar_t.cpp
@@ -1,7 +1,7 @@
 
 module;
 
-#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))
+#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))
 #define BOOST_REGEX_USE_STD_MODULE
 #endif
 
diff --git a/module/regex_nc_sfind.cpp b/module/regex_nc_sfind.cpp
index 8ae3aabf..4b2b83f2 100644
--- a/module/regex_nc_sfind.cpp
+++ b/module/regex_nc_sfind.cpp
@@ -1,7 +1,7 @@
 
 module;
 
-#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))
+#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))
 #define BOOST_REGEX_USE_STD_MODULE
 #endif
 
diff --git a/module/regex_nc_smatch.cpp b/module/regex_nc_smatch.cpp
index b905c1fb..2f92bb28 100644
--- a/module/regex_nc_smatch.cpp
+++ b/module/regex_nc_smatch.cpp
@@ -1,7 +1,7 @@
 
 module;
 
-#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))
+#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))
 #define BOOST_REGEX_USE_STD_MODULE
 #endif
 
diff --git a/module/regex_nc_wsfind.cpp b/module/regex_nc_wsfind.cpp
index 2a9b734d..92a09641 100644
--- a/module/regex_nc_wsfind.cpp
+++ b/module/regex_nc_wsfind.cpp
@@ -1,7 +1,7 @@
 
 module;
 
-#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))
+#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))
 #define BOOST_REGEX_USE_STD_MODULE
 #endif
 
diff --git a/module/regex_nc_wsmatch.cpp b/module/regex_nc_wsmatch.cpp
index d2eeaecb..ee29130f 100644
--- a/module/regex_nc_wsmatch.cpp
+++ b/module/regex_nc_wsmatch.cpp
@@ -1,7 +1,7 @@
 
 module;
 
-#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))
+#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))
 #define BOOST_REGEX_USE_STD_MODULE
 #endif
 
diff --git a/module/regex_sfind.cpp b/module/regex_sfind.cpp
index 86ee14ea..35136b99 100644
--- a/module/regex_sfind.cpp
+++ b/module/regex_sfind.cpp
@@ -1,7 +1,7 @@
 
 module;
 
-#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))
+#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))
 #define BOOST_REGEX_USE_STD_MODULE
 #endif
 
diff --git a/module/regex_smatch.cpp b/module/regex_smatch.cpp
index 573a8611..ace1ed8b 100644
--- a/module/regex_smatch.cpp
+++ b/module/regex_smatch.cpp
@@ -1,7 +1,7 @@
 
 module;
 
-#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))
+#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))
 #define BOOST_REGEX_USE_STD_MODULE
 #endif
 
diff --git a/module/regex_wsfind.cpp b/module/regex_wsfind.cpp
index eafb1f15..1d5b02e4 100644
--- a/module/regex_wsfind.cpp
+++ b/module/regex_wsfind.cpp
@@ -1,7 +1,7 @@
 
 module;
 
-#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))
+#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))
 #define BOOST_REGEX_USE_STD_MODULE
 #endif
 
diff --git a/module/regex_wsmatch.cpp b/module/regex_wsmatch.cpp
index 5968f866..45991d30 100644
--- a/module/regex_wsmatch.cpp
+++ b/module/regex_wsmatch.cpp
@@ -1,7 +1,7 @@
 
 module;
 
-#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))
+#if defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))
 #define BOOST_REGEX_USE_STD_MODULE
 #endif
 
diff --git a/test/module/credit_card_example.cpp b/test/module/credit_card_example.cpp
index 56700412..9d56f90b 100644
--- a/test/module/credit_card_example.cpp
+++ b/test/module/credit_card_example.cpp
@@ -16,7 +16,7 @@
   *   DESCRIPTION: Credit card number formatting code.
   */
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/partial_regex_grep.cpp b/test/module/partial_regex_grep.cpp
index 039798d2..e4fcd8d4 100644
--- a/test/module/partial_regex_grep.cpp
+++ b/test/module/partial_regex_grep.cpp
@@ -16,7 +16,7 @@
   *   DESCRIPTION: Search example using partial matches.
   */
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/partial_regex_iterate.cpp b/test/module/partial_regex_iterate.cpp
index e135190d..c0099d0d 100644
--- a/test/module/partial_regex_iterate.cpp
+++ b/test/module/partial_regex_iterate.cpp
@@ -16,7 +16,7 @@
   *   DESCRIPTION: Search example using partial matches.
   */
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/partial_regex_match.cpp b/test/module/partial_regex_match.cpp
index 5c96ee35..fa61ab97 100644
--- a/test/module/partial_regex_match.cpp
+++ b/test/module/partial_regex_match.cpp
@@ -19,7 +19,7 @@
 
 //#include <version>
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/regex_grep_example_1.cpp b/test/module/regex_grep_example_1.cpp
index afa390de..131e538a 100644
--- a/test/module/regex_grep_example_1.cpp
+++ b/test/module/regex_grep_example_1.cpp
@@ -16,7 +16,7 @@
   *   DESCRIPTION: regex_grep example 1: searches a cpp file for class definitions.
   */
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/regex_grep_example_2.cpp b/test/module/regex_grep_example_2.cpp
index 7d66f22f..71d30c8d 100644
--- a/test/module/regex_grep_example_2.cpp
+++ b/test/module/regex_grep_example_2.cpp
@@ -17,7 +17,7 @@
   *                using a global callback function.
   */
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/regex_grep_example_3.cpp b/test/module/regex_grep_example_3.cpp
index f57b51e9..35698dc5 100644
--- a/test/module/regex_grep_example_3.cpp
+++ b/test/module/regex_grep_example_3.cpp
@@ -17,7 +17,7 @@
   *                using a bound member function callback.
   */
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/regex_iterator_example.cpp b/test/module/regex_iterator_example.cpp
index 67ddb763..6568838c 100644
--- a/test/module/regex_iterator_example.cpp
+++ b/test/module/regex_iterator_example.cpp
@@ -17,7 +17,7 @@
   *                using global data.
   */
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/regex_match_example.cpp b/test/module/regex_match_example.cpp
index 5036b3cf..81dc8a49 100644
--- a/test/module/regex_match_example.cpp
+++ b/test/module/regex_match_example.cpp
@@ -16,7 +16,7 @@
   *   DESCRIPTION: ftp based regex_match example.
   */
   
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/regex_merge_example.cpp b/test/module/regex_merge_example.cpp
index f8c95fb5..056551ab 100644
--- a/test/module/regex_merge_example.cpp
+++ b/test/module/regex_merge_example.cpp
@@ -17,7 +17,7 @@
   *                converts a C++ file to syntax highlighted HTML.
   */
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/regex_replace_example.cpp b/test/module/regex_replace_example.cpp
index 52937d8d..eeb2219d 100644
--- a/test/module/regex_replace_example.cpp
+++ b/test/module/regex_replace_example.cpp
@@ -17,7 +17,7 @@
   *                converts a C++ file to syntax highlighted HTML.
   */
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/regex_search_example.cpp b/test/module/regex_search_example.cpp
index 0db092f0..5f6c551a 100644
--- a/test/module/regex_search_example.cpp
+++ b/test/module/regex_search_example.cpp
@@ -16,7 +16,7 @@
   *   DESCRIPTION: regex_search example: searches a cpp file for class definitions.
   */
   
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/regex_split_example_1.cpp b/test/module/regex_split_example_1.cpp
index ecab6f18..22057b3f 100644
--- a/test/module/regex_split_example_1.cpp
+++ b/test/module/regex_split_example_1.cpp
@@ -17,7 +17,7 @@
   */
 
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 Simport std.core;
diff --git a/test/module/regex_split_example_2.cpp b/test/module/regex_split_example_2.cpp
index 83469808..2773a306 100644
--- a/test/module/regex_split_example_2.cpp
+++ b/test/module/regex_split_example_2.cpp
@@ -17,7 +17,7 @@
   */
 
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/regex_token_iterator_eg_1.cpp b/test/module/regex_token_iterator_eg_1.cpp
index d20ac586..f40a8fbc 100644
--- a/test/module/regex_token_iterator_eg_1.cpp
+++ b/test/module/regex_token_iterator_eg_1.cpp
@@ -17,7 +17,7 @@
   */
 
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;
diff --git a/test/module/regex_token_iterator_eg_2.cpp b/test/module/regex_token_iterator_eg_2.cpp
index 4c8f8dbd..af5618bc 100644
--- a/test/module/regex_token_iterator_eg_2.cpp
+++ b/test/module/regex_token_iterator_eg_2.cpp
@@ -16,7 +16,7 @@
   *   DESCRIPTION: regex_token_iterator example: spit out linked URL's.
   */
 
-#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933524))) && !defined(TEST_HEADERS)
+#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193933523))) && !defined(TEST_HEADERS)
 import std;
 #elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
 import std.core;