Here we go again, another round of version bumping...
diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index 81973bf..3754a0a 100644
--- a/Include/patchlevel.h
+++ b/Include/patchlevel.h
@@ -22,14 +22,14 @@
#define PY_MAJOR_VERSION 2
#define PY_MINOR_VERSION 1
#define PY_MICRO_VERSION 0
-#define PY_RELEASE_LEVEL PY_RELEASE_LEVEL_ALPHA
-#define PY_RELEASE_SERIAL 2
+#define PY_RELEASE_LEVEL PY_RELEASE_LEVEL_BETA
+#define PY_RELEASE_SERIAL 1
/* Version as a string */
-#define PY_VERSION "2.1a2"
+#define PY_VERSION "2.1b1"
/* Historic */
-#define PATCHLEVEL "2.1a2"
+#define PATCHLEVEL "2.1b1"
/* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.
Use this for numeric comparisons, e.g. #if PY_VERSION_HEX >= ... */