2 files changed, 7 insertions, 0 deletions

diff --git a/build/conf/bblayers.conf.sample b/build/conf/bblayers.conf.sample
index 3ea6eda66a..dff44e49c4 100644
--- a/build/conf/bblayers.conf.sample
+++ b/build/conf/bblayers.conf.sample
@@ -1,3 +1,7 @@
+# LAYER_CONF_VERSION is increased each time build/conf/bblayers.conf
+# changes incompatibly
+LCONF_VERSION = "1"
+
 BBFILES ?= ""
 BBLAYERS = " \
   ${OEROOT}/meta \
diff --git a/build/conf/site.conf.sample b/build/conf/site.conf.sample
index 0ed70c6d79..060dca087c 100644
--- a/build/conf/site.conf.sample
+++ b/build/conf/site.conf.sample
@@ -2,6 +2,9 @@
 # local.conf covers user settings, site.conf covers site specific information
 # such as proxy server addresses and optionally any shared download location
 #
+# SITE_CONF_VERSION is increased each time build/conf/site.conf
+# changes incompatibly
+SCONF_VERSION = "1"
 
 # Uncomment to cause CVS to use the proxy host specified
 #CVS_PROXY_HOST = "proxy.example.com"