diff --git a/doc/Doxyfile b/doc/Doxyfile
index 05a77244745ee992098e3089734ea9517b967bc7..1da75a5804f9e41a0c10783bbf9851bba7a586c7 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -25,7 +25,7 @@ PROJECT_NAME         = Xerces-C++
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER       = v2.3.0
+PROJECT_NUMBER       = v2.4.0
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
 # base path where the generated documentation will be put.
diff --git a/doc/style/dtd/entities.ent b/doc/style/dtd/entities.ent
index 366f641f06339cbd43f638023ceac0667270bfee..7c150560338aa6e27f833cd33bcd9e8d754e159f 100644
--- a/doc/style/dtd/entities.ent
+++ b/doc/style/dtd/entities.ent
@@ -2,17 +2,17 @@
 
 <!ENTITY XercesCFullName      "Xerces C++ Parser">            <!-- fullproductname -->
 <!ENTITY XercesCName          "Xerces-C++">                   <!-- productname -->
-<!ENTITY XercesCVersion       "2.3.0">                        <!-- versionnumber -->
+<!ENTITY XercesCVersion       "2.4.0">                        <!-- versionnumber -->
 <!ENTITY XercesCVersion152    "1.5.2">                        <!-- versionnumber -->
 <!ENTITY XercesCProjectName   "Xerces">                       <!-- projectname -->
-<!ENTITY XercesCInstallDir    "xerces-c2_3_0">                <!-- installdirname -->
-<!ENTITY XercesCSrcInstallDir "xerces-c-src2_3_0">            <!-- sourcedirectory -->
+<!ENTITY XercesCInstallDir    "xerces-c2_4_0">                <!-- installdirname -->
+<!ENTITY XercesCSrcInstallDir "xerces-c-src2_4_0">            <!-- sourcedirectory -->
 <!ENTITY XercesCWindowsLib    "xerces-c_2">                   <!-- windowslibname -->
-<!ENTITY XercesCWindowsDLL    "xerces-c_2_3_0">               <!-- windowsDLLname -->
+<!ENTITY XercesCWindowsDLL    "xerces-c_2_4_0">               <!-- windowsDLLname -->
 <!ENTITY XercesCUnixSoName    "23.0">                         <!-- unixlibname -->
 <!ENTITY XercesCUnixVersion   "23">                           <!-- unixlibname -->
 <!ENTITY XercesCUnixLib       "libxerces-c">                  <!-- unixlibname -->
 <!ENTITY XercesCNamespace     "xercesc">                      <!-- C++ namespace name -->
-<!ENTITY XercesCNSVersion     "xercesc_2_3">                  <!-- C++ namespace name with Version -->
+<!ENTITY XercesCNSVersion     "xercesc_2_4">                  <!-- C++ namespace name with Version -->
 <!ENTITY XercesCEmailAddress  "xerces-c-dev@xml.apache.org "> <!-- emailaddress -->
 <!ENTITY XercesDistDir        "xml.apache.org/xerces-c/download.cgi"> <!-- download directory -->