Index: doc/proposals/concurrency/build/bump_ver.sh
===================================================================
--- doc/proposals/concurrency/build/bump_ver.sh	(revision db0fa7c2f36d09a3445ac0aca454b055cf4b602a)
+++ doc/proposals/concurrency/build/bump_ver.sh	(revision db0fa7c2f36d09a3445ac0aca454b055cf4b602a)
@@ -0,0 +1,6 @@
+#!/bin/bash
+if [ ! -f version ]; then
+    echo "0.0.0" > version
+fi
+
+sed -r 's/([0-9]+\.[0-9]+.)([0-9]+)/echo "\1\$((\2+1))" > version/ge' version > /dev/null
Index: doc/proposals/concurrency/build/version
===================================================================
--- doc/proposals/concurrency/build/version	(revision db0fa7c2f36d09a3445ac0aca454b055cf4b602a)
+++ doc/proposals/concurrency/build/version	(revision db0fa7c2f36d09a3445ac0aca454b055cf4b602a)
@@ -0,0 +1,1 @@
+0.8.3