diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8909de65d2..9b6b4ed5b0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -64,7 +64,7 @@ else()
 endif()
 
 set(wxVERSION ${wxMAJOR_VERSION}.${wxMINOR_VERSION}.${wxRELEASE_NUMBER})
-set(wxCOPYRIGHT "1992-2019 wxWidgets")
+set(wxCOPYRIGHT "1992-2020 wxWidgets")
 
 include(build/cmake/main.cmake)
 
diff --git a/docs/doxygen/mainpages/copyright.h b/docs/doxygen/mainpages/copyright.h
index 531e4c2b4c..79d2b6c727 100644
--- a/docs/doxygen/mainpages/copyright.h
+++ b/docs/doxygen/mainpages/copyright.h
@@ -11,7 +11,7 @@
 
 @section section_copyright wxWidgets Copyrights and Licenses
 
-Copyright (c) 1992-2019 Julian Smart, Vadim Zeitlin, Stefan Csomor, Robert
+Copyright (c) 1992-2020 Julian Smart, Vadim Zeitlin, Stefan Csomor, Robert
 Roebling, and other members of the wxWidgets team, please see the
 acknowledgements section below.
 
diff --git a/docs/doxygen/regen.sh b/docs/doxygen/regen.sh
index 97029043c6..16da10339a 100755
--- a/docs/doxygen/regen.sh
+++ b/docs/doxygen/regen.sh
@@ -198,7 +198,7 @@ if [[ "$1" = "docset" ]]; then
     $PLIST_WRITE_CMD $DESTINATIONDIR/$DOCSETNAME/Contents/Info DocSetFeedURL $ATOMDIR/$ATOM
     $PLIST_WRITE_CMD $DESTINATIONDIR/$DOCSETNAME/Contents/Info DocSetFallbackURL https://docs.wxwidgets.org
     $PLIST_WRITE_CMD $DESTINATIONDIR/$DOCSETNAME/Contents/Info DocSetDescription "API reference and conceptual documentation for wxWidgets 3.0"
-    $PLIST_WRITE_CMD $DESTINATIONDIR/$DOCSETNAME/Contents/Info NSHumanReadableCopyright "Copyright 1992-2019 wxWidgets team, Portions 1996 Artificial Intelligence Applications Institute"
+    $PLIST_WRITE_CMD $DESTINATIONDIR/$DOCSETNAME/Contents/Info NSHumanReadableCopyright "Copyright 1992-2020 wxWidgets team, Portions 1996 Artificial Intelligence Applications Institute"
     $PLIST_WRITE_CMD $DESTINATIONDIR/$DOCSETNAME/Contents/Info isJavaScriptEnabled true
     $PLIST_WRITE_CMD $DESTINATIONDIR/$DOCSETNAME/Contents/Info dashIndexFilePath index.html
     $PLIST_WRITE_CMD $DESTINATIONDIR/$DOCSETNAME/Contents/Info DocSetPlatformFamily wx
diff --git a/interface/wx/aboutdlg.h b/interface/wx/aboutdlg.h
index 36ac2ea5c4..ea7ecdf7e8 100644
--- a/interface/wx/aboutdlg.h
+++ b/interface/wx/aboutdlg.h
@@ -37,7 +37,7 @@
         aboutInfo.SetName("MyApp");
         aboutInfo.SetVersion(MY_APP_VERSION_STRING);
         aboutInfo.SetDescription(_("My wxWidgets-based application!"));
-        aboutInfo.SetCopyright("(C) 1992-2019");
+        aboutInfo.SetCopyright("(C) 1992-2020");
         aboutInfo.SetWebSite("http://myapp.org");
         aboutInfo.AddDeveloper("My Self");
 
diff --git a/interface/wx/generic/aboutdlgg.h b/interface/wx/generic/aboutdlgg.h
index e65a056df9..f20ff007a4 100644
--- a/interface/wx/generic/aboutdlgg.h
+++ b/interface/wx/generic/aboutdlgg.h
@@ -34,7 +34,7 @@
         aboutInfo.SetName("MyApp");
         aboutInfo.SetVersion(MY_APP_VERSION_STRING);
         aboutInfo.SetDescription(_("My wxWidgets-based application!"));
-        aboutInfo.SetCopyright("(C) 1992-2019");
+        aboutInfo.SetCopyright("(C) 1992-2020");
         aboutInfo.SetWebSite("http://myapp.org");
         aboutInfo.AddDeveloper("My Self");
 
diff --git a/samples/docview/Info.plist b/samples/docview/Info.plist
index 9b8a184b21..fb0bf1fc0c 100644
--- a/samples/docview/Info.plist
+++ b/samples/docview/Info.plist
@@ -51,7 +51,7 @@
 	<key>CFBundleExecutable</key>
 	<string>$(PRODUCT_NAME)</string>
 	<key>CFBundleGetInfoString</key>
-	<string>$(PRODUCT_NAME) version 3.1.4, (c) 2005-2019 wxWidgets</string>
+	<string>$(PRODUCT_NAME) version 3.1.4, (c) 2005-2020 wxWidgets</string>
 	<key>CFBundleIconFile</key>
 	<string>doc</string>
 	<key>CFBundleIdentifier</key>
@@ -66,7 +66,7 @@
 		<string>it</string>
 	</array>
 	<key>CFBundleLongVersionString</key>
-	<string>3.1.4, (c) 2005-2019 wxWidgets</string>
+	<string>3.1.4, (c) 2005-2020 wxWidgets</string>
 	<key>CFBundleName</key>
 	<string>$(PRODUCT_NAME)</string>
 	<key>CFBundlePackageType</key>
@@ -82,6 +82,6 @@
 	<key>LSRequiresCarbon</key>
 	<true/>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright 2005-2019 wxWidgets</string>
+	<string>Copyright 2005-2020 wxWidgets</string>
 </dict>
 </plist>
diff --git a/samples/minimal/Info_cocoa.plist b/samples/minimal/Info_cocoa.plist
index 96103e80f4..0582c7001e 100644
--- a/samples/minimal/Info_cocoa.plist
+++ b/samples/minimal/Info_cocoa.plist
@@ -7,7 +7,7 @@
 	<key>CFBundleExecutable</key>
 	<string>$(PRODUCT_NAME)</string>
 	<key>CFBundleGetInfoString</key>
-	<string>$(PRODUCT_NAME) version 3.1.4, (c) 2005-2019 wxWidgets</string>
+	<string>$(PRODUCT_NAME) version 3.1.4, (c) 2005-2020 wxWidgets</string>
 	<key>CFBundleIconFile</key>
 	<string>wxmac.icns</string>
 	<key>CFBundleIdentifier</key>
@@ -22,7 +22,7 @@
 		<string>it</string>
 	</array>
 	<key>CFBundleLongVersionString</key>
-	<string>3.1.4, (c) 2005-2019 wxWidgets</string>
+	<string>3.1.4, (c) 2005-2020 wxWidgets</string>
 	<key>CFBundleName</key>
 	<string>$(PRODUCT_NAME)</string>
 	<key>CFBundlePackageType</key>
@@ -34,7 +34,7 @@
 	<key>CFBundleVersion</key>
 	<string>3.1.4</string>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright 2005-2019 wxWidgets</string>
+	<string>Copyright 2005-2020 wxWidgets</string>
 	<key>NSPrincipalClass</key>
 	<string>wxNSApplication</string>
 </dict>
diff --git a/src/common/utilscmn.cpp b/src/common/utilscmn.cpp
index 33eb302186..12fc75761c 100644
--- a/src/common/utilscmn.cpp
+++ b/src/common/utilscmn.cpp
@@ -1432,7 +1432,7 @@ wxVersionInfo wxGetLibraryVersionInfo()
                          wxMINOR_VERSION,
                          wxRELEASE_NUMBER,
                          msg,
-                         wxS("Copyright (c) 1995-2019 wxWidgets team"));
+                         wxS("Copyright (c) 1995-2020 wxWidgets team"));
 }
 
 void wxInfoMessageBox(wxWindow* parent)
diff --git a/src/msw/version.rc b/src/msw/version.rc
index d6cd4203d9..c31592f6b2 100644
--- a/src/msw/version.rc
+++ b/src/msw/version.rc
@@ -92,7 +92,7 @@ BEGIN
             VALUE "FileDescription", "wxWidgets " WXLIBDESC " library\0"
             VALUE "FileVersion", wxVERSION_NUM_DOT_STRING "\0"
             VALUE "InternalName", wxSTRINGIZE(WXDLLNAME) "\0"
-            VALUE "LegalCopyright", "Copyright © 1993-2019 wxWidgets development team\0"
+            VALUE "LegalCopyright", "Copyright © 1993-2020 wxWidgets development team\0"
             VALUE "OriginalFilename", wxSTRINGIZE(WXDLLNAME) ".dll\0"
             VALUE "ProductName", "wxWidgets\0"
             VALUE "ProductVersion", wxVERSION_NUM_DOT_STRING "\0"