updated for version 7.0050
diff --git a/runtime/doc/recover.txt b/runtime/doc/recover.txt
index 6913be2..ffd1509 100644
--- a/runtime/doc/recover.txt
+++ b/runtime/doc/recover.txt
@@ -1,4 +1,4 @@
-*recover.txt*   For Vim version 7.0aa.  Last change: 2004 Jun 16
+*recover.txt*   For Vim version 7.0aa.  Last change: 2005 Feb 10
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -116,8 +116,12 @@
 
 					*:pre* *:preserve* *E313* *E314*
 :pre[serve]		Write all text for all buffers into swap file.  The
-			original file is no longer needed for recovery.  {Vi:
-			emergency exit}
+			original file is no longer needed for recovery.
+			This sets a flag in the current buffer.  When the '&'
+			flag is present in 'cpoptions' the swap file will not
+			be deleted for this buffer when Vim exits and the
+			buffer is still loaded |cpo-&|.
+			{Vi: might also exit}
 
 A Vim swap file can be recognized by the first six characters: "b0VIM ".
 After that comes the version number, e.g., "3.0".