PROTON-1271: Bump the .so major version on master to 9 for the next release
diff --git a/proton-c/soversion.cmake b/proton-c/soversion.cmake
index 84082ea..66686ec 100644
--- a/proton-c/soversion.cmake
+++ b/proton-c/soversion.cmake
@@ -1,2 +1,2 @@
-set (PN_LIB_SOMAJOR 7)
+set (PN_LIB_SOMAJOR 9)
 set (PN_LIB_SOMINOR "0.0")