tag 2.7 alpha 4
diff --git a/.hgtags b/.hgtags
index 86281b2..4f91208 100644
--- a/.hgtags
+++ b/.hgtags
@@ -80,3 +80,4 @@
 b4107eb00b4271fb73a9e1b736d4f23460950778 v2.7a1
 adc85ebc7271cc22e24e816782bb2b8d7fa3a6b3 v2.7a2
 4180557b7a9bb9dd5341a18af199f843f199e46e v2.7a3
+d2e1027edde84a02853fcf9790f311f10f46cf0a v2.7a4