diff -Nru planetfilter-0.7.3/Changelog.txt planetfilter-0.7.4/Changelog.txt
--- planetfilter-0.7.3/Changelog.txt	2017-04-05 05:12:37.000000000 +0000
+++ planetfilter-0.7.4/Changelog.txt	2017-08-05 22:36:57.000000000 +0000
@@ -1,3 +1,6 @@
+0.7.4 (2017-08-05)
+- Avoid deleting files when errors occur
+
 0.7.3 (2017-04-04)
 - Gracefully handle OSError
 - Gracefully handle ConnectionResetError
diff -Nru planetfilter-0.7.3/debian/changelog planetfilter-0.7.4/debian/changelog
--- planetfilter-0.7.3/debian/changelog	2017-04-05 05:38:52.000000000 +0000
+++ planetfilter-0.7.4/debian/changelog	2017-08-05 23:21:19.000000000 +0000
@@ -1,3 +1,11 @@
+planetfilter (0.7.4-1) unstable; urgency=medium
+
+  * New upstream release
+  * Bump Standards-Version up to 4.0.0
+  * Bump debhelper compat to 10
+
+ -- Francois Marier <francois@debian.org>  Sat, 05 Aug 2017 16:21:19 -0700
+
 planetfilter (0.7.3-1) unstable; urgency=medium
 
   * New upstream release
diff -Nru planetfilter-0.7.3/debian/compat planetfilter-0.7.4/debian/compat
--- planetfilter-0.7.3/debian/compat	2017-04-05 05:38:52.000000000 +0000
+++ planetfilter-0.7.4/debian/compat	2017-08-05 23:21:19.000000000 +0000
@@ -1 +1 @@
-9
+10
diff -Nru planetfilter-0.7.3/debian/control planetfilter-0.7.4/debian/control
--- planetfilter-0.7.3/debian/control	2017-04-05 05:38:52.000000000 +0000
+++ planetfilter-0.7.4/debian/control	2017-08-05 23:21:19.000000000 +0000
@@ -2,8 +2,8 @@
 Section: web
 Priority: optional
 Maintainer: Francois Marier <francois@debian.org>
-Build-Depends: debhelper (>= 9), dh-python, python3-all
-Standards-Version: 3.9.8
+Build-Depends: debhelper (>= 10), dh-python, python3-all
+Standards-Version: 4.0.0
 Homepage: https://launchpad.net/planetfilter
 Vcs-Git: https://anonscm.debian.org/git/collab-maint/planetfilter.git
 Vcs-Browser: https://anonscm.debian.org/gitweb/?p=collab-maint/planetfilter.git;a=summary
diff -Nru planetfilter-0.7.3/PKG-INFO planetfilter-0.7.4/PKG-INFO
--- planetfilter-0.7.3/PKG-INFO	2017-04-05 05:29:29.000000000 +0000
+++ planetfilter-0.7.4/PKG-INFO	2017-08-05 22:38:31.000000000 +0000
@@ -1,6 +1,6 @@
 Metadata-Version: 1.1
 Name: planetfilter
-Version: 0.7.3
+Version: 0.7.4
 Summary: Filter for blog aggregators
 Home-page: https://launchpad.net/planetfilter
 Author: Francois Marier
diff -Nru planetfilter-0.7.3/planetfilter planetfilter-0.7.4/planetfilter
--- planetfilter-0.7.3/planetfilter	2017-04-05 05:27:33.000000000 +0000
+++ planetfilter-0.7.4/planetfilter	2017-08-05 22:37:20.000000000 +0000
@@ -42,7 +42,7 @@
 
 RDFNS = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'
 
-VERSION = '0.7.3'
+VERSION = '0.7.4'
 
 
 def delete_node(node):
@@ -449,13 +449,19 @@
     contents = download_feed(url)
     if not contents:
         if outfile and os.path.isfile(outfile):
-            os.remove(outfile)
+            # leave the previously filtered feed in place
+            pass
         return True  # non-fatal error
 
     document = parse_feed(contents, url)
     if not document:
         if outfile and os.path.isfile(outfile):
-            os.remove(outfile)
+            try:
+                with codecs.open(outfile, 'w', 'utf-8') as outfh:
+                    outfh.write('')  # clear any previous feed
+            except PermissionError:
+                print("Error: not enough permissions to write to '%s'"
+                      % outfile, file=sys.stderr)
         return False
 
     filter_feed(document, blacklist)
@@ -465,7 +471,7 @@
             with codecs.open(outfile, 'w', 'utf-8') as outfh:
                 outfh.write(document.toxml())
         except PermissionError:
-            print("Error: no enough permissions to write to '%s'" % outfile,
+            print("Error: not enough permissions to write to '%s'" % outfile,
                   file=sys.stderr)
             return False
     else:
diff -Nru planetfilter-0.7.3/README.txt planetfilter-0.7.4/README.txt
--- planetfilter-0.7.3/README.txt	2016-01-20 03:14:40.000000000 +0000
+++ planetfilter-0.7.4/README.txt	2017-08-05 22:36:23.000000000 +0000
@@ -44,7 +44,7 @@
 
 ## License
 
-Copyright (C) 2010, 2015, 2016  Francois Marier <francois@fmarier.org>
+Copyright (C) 2010, 2015, 2016, 2017  Francois Marier <francois@fmarier.org>
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU Affero General Public License as
diff -Nru planetfilter-0.7.3/setup.py planetfilter-0.7.4/setup.py
--- planetfilter-0.7.3/setup.py	2017-04-05 05:25:21.000000000 +0000
+++ planetfilter-0.7.4/setup.py	2017-08-05 22:37:12.000000000 +0000
@@ -2,7 +2,7 @@
 
 setup(
     name = 'planetfilter',
-    version = '0.7.3',
+    version = '0.7.4',
     description = 'Filter for blog aggregators',
     author = 'Francois Marier',
     author_email = 'francois@fmarier.org',