diff --git a/NEWS b/NEWS
index 705cb4f4..a8d255f3 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,5 @@
+0.66rc1
+  - todo
 0.65
   - Fixed FAT writing.
   - Added some more missing DOS functions.
diff --git a/VERSION b/VERSION
index f429be05..4a1a5e6f 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.65
+0.66rc1
diff --git a/configure.in b/configure.in
index 7028e908..bcb1bb18 100644
--- a/configure.in
+++ b/configure.in
@@ -1,5 +1,5 @@
 dnl Init.
-AC_INIT(dosbox,0.65)
+AC_INIT(dosbox,0.66rc1)
 AC_PREREQ(2.50)
 AC_CONFIG_SRCDIR(README)