Well i think client version 6.3 is higher than 1.1... so i would change client version back to where it was or higher...
0.6.3 was the old version.
so 1.1 is higher.

I messed up my comment because you pushed another commit in the mean time! lol i was certain that the versions where inverted!
-#define CLIENT_VERSION_MINOR 6
-#define CLIENT_VERSION_REVISION 3
+#define CLIENT_VERSION_MINOR 2
+#define CLIENT_VERSION_REVISION 0
But it should be fine with latest commit! I have not finished compiling yet.. but will restart pool ASAP!