$ \textbf{hg qnew second.patch}
$ \textbf{hg log --style=compact --limit=2}
2[qtip,second.patch,tip]   
  New patch: second.patch

1[first.patch,qbase]   
  patch queue: first.patch

$ \textbf{echo 'line 4' >> file1}
$ \textbf{hg qrefresh}
$ \textbf{hg tip --style=compact --patch}
2[qtip,second.patch,tip]   
  patch queue: second.patch

diff -r  -r  file1


@@ -1,3 +1,4 @@ line 1
 line 1
 line 2
 line 3
+line 4

$ \textbf{hg annotate file1}
0: line 1
1: line 2
1: line 3
2: line 4