Specify critical release flag per network

util/version/Cargo.toml

@@ -12,14 +12,13 @@ build = "build.rs"
 # Used by auto-updater and for Parity version string.
 track = "nightly"
 
-# Indicates a critical release in this track (i.e. consensus issue)
-critical = false
-
-# Latest supported fork blocks for various networks. Used ONLY by auto-updater.
-[package.metadata.forks]
-foundation = 4370000
-ropsten = 10
-kovan = 6600000
+# Network specific settings, used ONLY by auto-updater.
+# Latest supported fork blocks.
+# Indicates a critical release in this track (i.e. consensus issue).
+[package.metadata.networks]
+foundation = { forkBlock = 4370000, critical = false }
+ropsten = { forkBlock = 10, critical = false }
+kovan = { forkBlock = 6600000, critical = false }
 
 [dependencies]
 ethcore-bytes = { path = "../bytes" }