diff --git a/collects/scribblings/main/release.scrbl b/collects/scribblings/main/release.scrbl
index c568528ce7..cf590b6888 100644
--- a/collects/scribblings/main/release.scrbl
+++ b/collects/scribblings/main/release.scrbl
@@ -15,7 +15,7 @@
 
  @item{@rl-link['("racket" "HISTORY.txt")]{Racket core}
        @itemize[#:style "compact"]{
-         @item{@mzport["Draw_GUI_X-Y.txt" "v5.0.x" "vX.Y"]}
+         @item{@mzport["Draw_GUI_5_1.txt" "v5.0.x" "v5.1"]}
          @item{@mzport["Racket_5.txt" "v4.x" "v5.x"]}
          @item{@mzport["MzScheme_4.txt" "v3xx" "v4.x"]}
          @item{@mzport["MzScheme_300.txt" "v2xx" "v3xx"]}
diff --git a/doc/release-notes/racket/Draw_and_GUI_X_Y.txt b/doc/release-notes/racket/Draw_and_GUI_5_1.txt
similarity index 100%
rename from doc/release-notes/racket/Draw_and_GUI_X_Y.txt
rename to doc/release-notes/racket/Draw_and_GUI_5_1.txt
diff --git a/src/racket/src/schvers.h b/src/racket/src/schvers.h
index ff81a10690..626299e48c 100644
--- a/src/racket/src/schvers.h
+++ b/src/racket/src/schvers.h
@@ -13,12 +13,12 @@
    consistently.)
 */
 
-#define MZSCHEME_VERSION "5.0.2.2"
+#define MZSCHEME_VERSION "5.0.99.1"
 
 #define MZSCHEME_VERSION_X 5
 #define MZSCHEME_VERSION_Y 0
-#define MZSCHEME_VERSION_Z 2
-#define MZSCHEME_VERSION_W 2
+#define MZSCHEME_VERSION_Z 99
+#define MZSCHEME_VERSION_W 1
 
 #define MZSCHEME_VERSION_MAJOR ((MZSCHEME_VERSION_X * 100) + MZSCHEME_VERSION_Y)
 #define MZSCHEME_VERSION_MINOR ((MZSCHEME_VERSION_Z * 1000) + MZSCHEME_VERSION_W)