diff --git a/autodist-upstream-updates b/autodist-upstream-updates
index 8a0a43b..2d0201d 100755
--- a/autodist-upstream-updates
+++ b/autodist-upstream-updates
@@ -186,7 +186,8 @@ while read line; do
     alias=`grep "^$pkg" $ALIASES_DB`
     [ "$alias" ] || alias=`grep "^lib$pkg " $ALIASES_DB`
     [ "$alias" ] && pkg=$alias
-    line=`grep -i " $pkg[^-_A-Za-z0-9]" $buildstmp || grep -i " lib$pkg[^-_A-Za-z0-9]" $buildstmp`
+    line=`grep -i "^$pkg:" $buildstmp || grep -i "^lib$pkg:" $buildstmp`
+    # grep -i " $pkg[^-_A-Za-z0-9]" $buildstmp
     if [ "$line" ]; then
        pkg=${line/:*}
        [ "$pkg" -a "$ver" ] && echo "$pkg $ver ${alias/* /}" >> $tmpfile
@@ -250,6 +251,12 @@ rm -f $tmpfile
 > $UPDATES_DB
 unset lastpkg
 while read pkg ver alias; do
+   # skip updates to unstable versions
+   unset found_beta
+   for b in alpha beta rc "~"; do
+      [ "${ver/$b}" != "${ver}" ] && found_beta=1
+   done
+   [ "$found_beta" ] && continue
    if [ "$pkg" = "$lastpkg" ]; then
 #      echo "Warning: duplicate found: $pkg lastver: $lastver ver: $ver" >&2
       version_find_bigger $lastver $ver