diff --git a/png.h b/png.h
index be7d636ad..013f309ea 100644
--- a/png.h
+++ b/png.h
@@ -255,9 +255,6 @@
  *    to the info_ptr or png_ptr members through png.h, and the compiled
  *    application is loaded with a different version of the library.
  *
- *    DLLNUM will change each time there are forward or backward changes
- *    in binary compatibility (e.g., when a new feature is added).
- *
  * See libpng.txt or libpng.3 for more information.  The PNG specification
  * is available as a W3C Recommendation and as an ISO/IEC Standard; see
  * <https://www.w3.org/TR/2003/REC-PNG-20031110/>
@@ -281,8 +278,10 @@
 #define PNG_LIBPNG_VER_STRING "1.6.43.git"
 #define PNG_HEADER_VERSION_STRING " libpng version " PNG_LIBPNG_VER_STRING "\n"
 
-#define PNG_LIBPNG_VER_SONUM   16
-#define PNG_LIBPNG_VER_DLLNUM  16
+/* The versions of shared library builds should stay in sync, going forward */
+#define PNG_LIBPNG_VER_SHAREDLIB 16
+#define PNG_LIBPNG_VER_SONUM     PNG_LIBPNG_VER_SHAREDLIB /* [Deprecated] */
+#define PNG_LIBPNG_VER_DLLNUM    PNG_LIBPNG_VER_SHAREDLIB /* [Deprecated] */
 
 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
 #define PNG_LIBPNG_VER_MAJOR   1
diff --git a/pngtest.c b/pngtest.c
index 601cd8b7f..a94b44940 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -52,10 +52,10 @@ typedef png_libpng_version_1_6_43_git Your_png_h_is_not_version_1_6_43_git;
 #if (PNG_LIBPNG_VER != PNG_LIBPNG_VER_MAJOR * 10000 + \
                        PNG_LIBPNG_VER_MINOR * 100 + \
                        PNG_LIBPNG_VER_RELEASE) || \
-    (PNG_LIBPNG_VER_SONUM != PNG_LIBPNG_VER_MAJOR * 10 + \
-                             PNG_LIBPNG_VER_MINOR) || \
-    (PNG_LIBPNG_VER_DLLNUM != PNG_LIBPNG_VER_MAJOR * 10 + \
-                              PNG_LIBPNG_VER_MINOR)
+    (PNG_LIBPNG_VER_SHAREDLIB != PNG_LIBPNG_VER_MAJOR * 10 + \
+                                 PNG_LIBPNG_VER_MINOR) || \
+    (PNG_LIBPNG_VER_SHAREDLIB != PNG_LIBPNG_VER_SONUM) || \
+    (PNG_LIBPNG_VER_SHAREDLIB != PNG_LIBPNG_VER_DLLNUM)
 #  error "Inconsistent version numbers in png.h"
 #endif
 
diff --git a/scripts/pngwin.rc b/scripts/pngwin.rc
index 9335cbbe0..87702a4fb 100644
--- a/scripts/pngwin.rc
+++ b/scripts/pngwin.rc
@@ -89,12 +89,12 @@ BEGIN
 #endif /* PNG_USER_VERSIONINFO_COMPANYNAME */
       VALUE "FileDescription", "PNG image compression library\000"
       VALUE "FileVersion", PNG_LIBPNG_VER_STRING "\000"
-      VALUE "InternalName", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_DLLNUM) PNG_LIBPNG_DLLFNAME_POSTFIX " (Windows 32 bit)\000"
-      VALUE "LegalCopyright", "\251 1998-2009 Glenn Randers-Pehrson et al.\000"
+      VALUE "InternalName", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_SHAREDLIB) PNG_LIBPNG_DLLFNAME_POSTFIX " (Windows)\000"
+      VALUE "LegalCopyright", "\251 1998-2024 PNG Reference Library Authors\000"
 #ifdef PNG_USER_VERSIONINFO_LEGALTRADEMARKS
       VALUE "LegalTrademarks", PNG_USER_VERSIONINFO_LEGALTRADEMARKS "\000"
 #endif /* PNG_USER_VERSIONINFO_LEGALTRADEMARKS */
-      VALUE "OriginalFilename", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_DLLNUM) PNG_LIBPNG_DLLFNAME_POSTFIX ".DLL\000"
+      VALUE "OriginalFilename", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_SHAREDLIB) PNG_LIBPNG_DLLFNAME_POSTFIX ".DLL\000"
 #ifdef PNG_USER_PRIVATEBUILD
       VALUE "PrivateBuild", PNG_USER_PRIVATEBUILD "\000"
 #endif /* PNG_USER_PRIVATEBUILD */