diff --git a/consensus/version.go b/consensus/version.go
new file mode 100644
index 000000000..2acc3b77b
--- /dev/null
+++ b/consensus/version.go
@@ -0,0 +1,13 @@
+package consensus
+
+import (
+	. "github.com/tendermint/go-common"
+)
+
+// kind of arbitrary
+var Spec = "1"     // async
+var Major = "0"    //
+var Minor = "2"    // replay refactor
+var Revision = "1" // round state fix
+
+var Version = Fmt("v%s/%s.%s.%s", Spec, Major, Minor, Revision)
diff --git a/node/node.go b/node/node.go
index 5ad301800..96010a1a4 100644
--- a/node/node.go
+++ b/node/node.go
@@ -224,6 +224,7 @@ func makeNodeInfo(sw *p2p.Switch, privKey crypto.PrivKeyEd25519) *p2p.NodeInfo {
 		Other: []string{
 			Fmt("wire_version=%v", wire.Version),
 			Fmt("p2p_version=%v", p2p.Version),
+			Fmt("consensus_version=%v", consensus.Version),
 			Fmt("rpc_version=%v/%v", rpc.Version, rpccore.Version),
 		},
 	}
diff --git a/rpc/core/version.go b/rpc/core/version.go
index 0890da87a..e283de479 100644
--- a/rpc/core/version.go
+++ b/rpc/core/version.go
@@ -2,4 +2,4 @@ package core
 
 // a single integer is sufficient here
 
-const Version = "2" // add DialSeeds; re-organize type bytes
+const Version = "3" // rpc routes for profiling, setting config