diff --git a/7.3.645 b/7.3.645
new file mode 100644
index 0000000..40d8ee0
--- /dev/null
+++ b/7.3.645
@@ -0,0 +1,118 @@
+To: vim_dev@googlegroups.com
+Subject: Patch 7.3.645
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.3.645
+Problem:    No tests for patch 7.3.625 and 7.3.637.
+Solution:   Add more tests for the "gn" command and try/catch. (Christian
+	    Brabandt)
+Files:	    src/testdir/test53.in, src/testdir/test53.ok,
+	    src/testdir/test55.in, src/testdir/test55.ok
+
+
+*** ../vim-7.3.644/src/testdir/test53.in	2012-07-25 15:06:20.000000000 +0200
+--- src/testdir/test53.in	2012-08-29 16:37:44.000000000 +0200
+***************
+*** 34,40 ****
+  gnd
+  /[a]bcdx
+  :1
+! 2gnd
+  :/^start:/,/^end:/wq! test.out
+  ENDTEST
+  
+--- 34,46 ----
+  gnd
+  /[a]bcdx
+  :1
+! 2gnd/join
+! /$
+! 0gnd
+! /\>\zs
+! 0gnd/^
+! gnd$h/\zs
+! gnd
+  :/^start:/,/^end:/wq! test.out
+  ENDTEST
+  
+***************
+*** 57,60 ****
+--- 63,70 ----
+  one
+  two
+  abcdx | abcdx | abcdx
++ join 
++ lines
++ zero width pattern
++ delete first and last chars
+  end:
+*** ../vim-7.3.644/src/testdir/test53.ok	2012-07-25 15:06:20.000000000 +0200
+--- src/testdir/test53.ok	2012-08-29 16:37:48.000000000 +0200
+***************
+*** 21,24 ****
+--- 21,27 ----
+  SEARCH:
+  searchmatch
+  abcdx |  | abcdx
++ join lines
++ zerowidth pattern
++ elete first and last char
+  end:
+*** ../vim-7.3.644/src/testdir/test55.in	2012-05-18 12:06:58.000000000 +0200
+--- src/testdir/test55.in	2012-08-29 16:50:51.000000000 +0200
+***************
+*** 378,383 ****
+--- 378,393 ----
+  :unlet dict
+  :call garbagecollect(1)
+  :"
++ :" test for patch 7.3.637
++ :let a = 'No error caught'
++ :try|foldopen|catch|let a = matchstr(v:exception,'^[^ ]*')|endtry
++ o=a
:"
++ :lang C
++ :redir => a
++ :try|foobar|catch|let a = matchstr(v:exception,'^[^ ]*')|endtry
++ :redir END
++ o=a
:"
++ :"
+  :/^start:/,$wq! test.out
+  ENDTEST
+  
+*** ../vim-7.3.644/src/testdir/test55.ok	2012-05-18 12:06:58.000000000 +0200
+--- src/testdir/test55.ok	2012-08-29 16:51:15.000000000 +0200
+***************
+*** 115,117 ****
+--- 115,123 ----
+  {'a': {'b': 'B'}}
+  Vim(call):E737: a
+  {'a': {'b': 'B'}}
++ Vim(foldopen):E490:
++ 
++ 
++ Error detected while processing :
++ E492: Not an editor command: foobar|catch|let a = matchstr(v:exception,'^[^ ]*')|endtry
++ 
+*** ../vim-7.3.644/src/version.c	2012-08-29 16:34:23.000000000 +0200
+--- src/version.c	2012-08-29 16:37:20.000000000 +0200
+***************
+*** 721,722 ****
+--- 721,724 ----
+  {   /* Add new patch number below this line */
++ /**/
++     645,
+  /**/
+
+-- 
+TALL KNIGHT OF NI: Ni!
+                 "Monty Python and the Holy Grail" PYTHON (MONTY) PICTURES LTD
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
+///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\  an exciting new programming language -- http://www.Zimbu.org        ///
+ \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///