diff --git a/.gitignore b/.gitignore
index 1a61243..5d746de 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,7 +5,7 @@
 # the binaries were built, how they were
 # built. what version was built, etc
 # TODO: find a better way (not via ldflags)
-resources/build
+resources/build.*
 resources/BUILDREF
 resources/BUILDDATE
 
diff --git a/autobuild/autobuild.go b/autobuild/autobuild.go
index a515e1c..a935dfe 100644
--- a/autobuild/autobuild.go
+++ b/autobuild/autobuild.go
@@ -98,8 +98,8 @@ func build(tag string) *bool {
 
 	// setup the files that will end up in the binary
 	epoch := fmt.Sprintf("%d", time.Now().Unix())
-	shell.Write("./resources/BUILDDATE", epoch)
-	shell.Write("./resources/BUILDREF", gitref)
+	shell.Write("./resources/build.DATE", epoch)
+	shell.Write("./resources/build.REF", gitref)
 
 	// rebuild the binary (always remove the old one
 	shell.Run("rm " + filename)
diff --git a/build/build.go b/build/build.go
index 2d50bda..92253de 100644
--- a/build/build.go
+++ b/build/build.go
@@ -15,6 +15,23 @@ var filename string
 
 func main() {
 	shell.Quiet(false)
+
+	md5sum := build()
+	log.Println("\tmd5sum =", md5sum)
+
+	if (md5sum == "") {
+		log.Println("\tBUILD FAILED")
+		return
+	}
+
+/*
+	// upload test
+	sess := shell.SSH("mirrors.wit.com", 22, "jcarr", "")
+	shell.Scp(sess, filename, "/tmp/jcarr-testing")
+*/
+}
+
+func build() string {
 	user, _ := user.Current()
 	log.Println("user.HomeDir =", user.HomeDir)
 
@@ -24,8 +41,26 @@ func main() {
 
 	// setup the files that will end up in the binary
 	epoch := fmt.Sprintf("%d", time.Now().Unix())
-	shell.Write("./resources/BUILDDATE", epoch)
-	shell.Write("./resources/BUILDREF", gitref)
+	shell.Write("./resources/build.DATE", epoch)
+	shell.Write("./resources/build.REF", gitref)
+
+	// make a dirty file if this build is dirty
+	shell.Run("rm ./resources/build.DIRTY")
+
+	version := shell.Run("cat ./resources/VERSION")
+	versionref := shell.Run("git rev-list -1 v" + version)
+
+	if (gitref != versionref) {
+		log.Println("build is DIRTY", gitref, "!=", versionref)
+		shell.Write("./resources/build.DIRTY", versionref)
+	}
+
+	// Test if there are pending diffs. If so, also mark this as dirty.
+	diff := shell.Run("git diff HEAD")
+	if (diff != "") {
+		log.Println("build is DIRTY -- pending diffs")
+		shell.Write("./resources/build.DIRTY", "pending diffs")
+	}
 
 	// rebuild the binary (always remove the old one
 	shell.Run("rm " + filename)
@@ -34,16 +69,7 @@ func main() {
 
 	md5sum := shell.Md5sum(filename)
 	log.Println("\tmd5sum =", md5sum)
-
-	if (md5sum == "") {
-		log.Println("\tBUILD FAILED")
-		return
-	}
 	shell.Write("/tmp/build.md5sum", md5sum)
 
-/*
-	// upload test
-	sess := shell.SSH("mirrors.wit.com", 22, "jcarr", "")
-	shell.Scp(sess, filename, "/tmp/jcarr-testing")
-*/
+	return md5sum
 }
diff --git a/config.go b/config.go
index 03b41f0..5dca597 100644
--- a/config.go
+++ b/config.go
@@ -221,4 +221,10 @@ func parseConfig() {
 		}
 	}
 	config.Dirty = false
+
+	dirty, err := packrBox.FindString("build.DIRTY")
+	if (err == nil) {
+		log.Println("dirty =", dirty)
+		config.Dirty = true
+	}
 }
diff --git a/resources/tags/v0.6.36 b/resources/tags/v0.6.36
new file mode 100644
index 0000000..f2dd1c8
--- /dev/null
+++ b/resources/tags/v0.6.36
@@ -0,0 +1 @@
+09793249ee459e6d60e9957924a33812728d5738
diff --git a/upgrade.go b/upgrade.go
index d923518..d35e57f 100644
--- a/upgrade.go
+++ b/upgrade.go
@@ -22,7 +22,7 @@ func upgrade() {
 	mirrorsBUILDDATE := shell.Chomp(shell.Wget(builddateURL))
 	epoch            := time.Now().Unix()
 
-	myBUILDDATE, _    := packrBox.FindString("BUILDDATE")
+	myBUILDDATE, _    := packrBox.FindString("build.DATE")
 	myBUILDDATE        = shell.Chomp(myBUILDDATE)
 	myBUILDVERSION, _ := packrBox.FindString("VERSION")
 	myBUILDVERSION     = shell.Chomp(myBUILDVERSION)