Bump version to 7.4.2 for release

russcam · russcam · commit 7d282a99092a · 2019-12-11T10:45:32.000+10:00
(cherry picked from commit c4be5c1)
diff --git a/global.json b/global.json
@@ -2,6 +2,6 @@
   "sdk": {
     "version": "3.0.100"
   },
-  "version": "7.4.1",
+  "version": "7.4.2",
   "doc_current": "7.4"
 }
