Bump the version up to 0.10.99 to make it clear that the master branch is beyond anything on the 0.10 branch.
diff --git a/RELEASE_CHECKLIST.txt b/RELEASE_CHECKLIST.txt
index d086592..bdc547a 100644
--- a/RELEASE_CHECKLIST.txt
+++ b/RELEASE_CHECKLIST.txt
@@ -53,6 +53,7 @@
 
 git branch master
 Add new section to CHANGES
+Update the version in json_c_version.h
 Update the version in Doxyfile
 Update the version in configure.in
 Update the libjson_la_LDFLAGS line in Makefile.am to the new version.