diff --git a/cups-filter-debug.patch b/cups-filter-debug.patch
new file mode 100644
index 0000000..38053e6
--- /dev/null
+++ b/cups-filter-debug.patch
@@ -0,0 +1,32 @@
+diff -up cups-1.4rc1/scheduler/job.c.filter-debug cups-1.4rc1/scheduler/job.c
+--- cups-1.4rc1/scheduler/job.c.filter-debug	2009-06-23 18:10:57.125572911 +0100
++++ cups-1.4rc1/scheduler/job.c	2009-06-23 18:11:31.495572481 +0100
+@@ -544,10 +544,28 @@ cupsdContinueJob(cupsd_job_t *job)	/* I 
+ 
+     if (!filters)
+     {
++      mime_filter_t *current;
++
+       cupsdLogJob(job, CUPSD_LOG_ERROR,
+ 		  "Unable to convert file %d to printable format!",
+ 		  job->current_file);
+ 
++      cupsdLogJob(job, CUPSD_LOG_ERROR,
++		  "Required: %s/%s -> %s/%s",
++		  job->filetypes[job->current_file]->super,
++		  job->filetypes[job->current_file]->type,
++		  job->printer->filetype->super,
++		  job->printer->filetype->type);
++
++      for (current = (mime_filter_t *)cupsArrayFirst(MimeDatabase->srcs);
++	   current;
++	   current = (mime_filter_t *)cupsArrayNext(MimeDatabase->srcs))
++	  cupsdLogJob(job, CUPSD_LOG_ERROR,
++		      "Available: %s/%s -> %s/%s (%s)",
++		      current->src->super, current->src->type,
++		      current->dst->super, current->dst->type,
++		      current->filter);
++
+       abort_message = "Aborting job because it cannot be printed.";
+       abort_state   = IPP_JOB_ABORTED;
+ 
diff --git a/cups-str3231.patch b/cups-str3231.patch
new file mode 100644
index 0000000..121723b
--- /dev/null
+++ b/cups-str3231.patch
@@ -0,0 +1,36 @@
+diff -up cups-1.4rc1/cups/request.c.str3231 cups-1.4rc1/cups/request.c
+--- cups-1.4rc1/cups/request.c.str3231	2009-06-29 10:07:23.568486428 +0100
++++ cups-1.4rc1/cups/request.c	2009-06-29 10:07:44.867219805 +0100
+@@ -266,9 +266,9 @@ cupsDoIORequest(http_t     *http,	/* I -
+ 
+     DEBUG_printf(("2cupsDoIORequest: status=%d", status));
+ 
+-    if (status == HTTP_FORBIDDEN || status == HTTP_ERROR ||
+-	status >= HTTP_SERVER_ERROR)
++    if (status == HTTP_FORBIDDEN || status >= HTTP_SERVER_ERROR)
+     {
++      httpFlush(http);
+       _cupsSetHTTPError(status);
+       break;
+     }
+diff -up cups-1.4rc1/cups/http.c.length cups-1.4rc1/cups/http.c
+--- cups-1.4rc1/cups/http.c.length	2009-07-01 12:00:16.591298309 +0100
++++ cups-1.4rc1/cups/http.c	2009-07-01 12:00:43.494298468 +0100
+@@ -3143,6 +3145,8 @@ http_upgrade(http_t *http)		/* I - Conne
+ 
+   DEBUG_printf(("7http_upgrade(%p)", http));
+ 
++  httpFlush(http);
++
+  /*
+   * Copy the HTTP data to a local variable so we can do the OPTIONS
+   * request without interfering with the existing request data...
+@@ -3170,8 +3174,6 @@ http_upgrade(http_t *http)		/* I - Conne
+     while (httpUpdate(http) == HTTP_CONTINUE);
+   }
+ 
+-  httpFlush(http);
+-
+  /*
+   * Restore the HTTP request data...
+   */
diff --git a/cups.spec b/cups.spec
index 8dc72a7..dd1a21d 100644
--- a/cups.spec
+++ b/cups.spec
@@ -7,7 +7,7 @@
 Summary: Common Unix Printing System
 Name: cups
 Version: 1.4
-Release: 0.%{pre}.4%{?dist}
+Release: 0.%{pre}.6%{?dist}
 License: GPLv2
 Group: System Environment/Daemons
 Source: ftp://ftp.easysw.com/pub/cups/test//cups-%{version}%{?pre}%{?svn}-source.tar.bz2
@@ -45,7 +45,9 @@ Patch21: cups-usb-paperout.patch
 Patch22: cups-build.patch
 Patch23: cups-res_init.patch
 Patch24: cups-str3229.patch
-Patch26: cups-avahi.patch
+Patch25: cups-filter-debug.patch
+Patch26: cups-str3231.patch
+Patch27: cups-avahi.patch
 Patch100: cups-lspp.patch
 Epoch: 1
 Url: http://www.cups.org/
@@ -186,7 +188,9 @@ module.
 %patch22 -p1 -b .build
 %patch23 -p1 -b .res_init
 %patch24 -p1 -b .str3229
-#%patch26 -p1 -b .avahi
+%patch25 -p1 -b .filter-debug
+%patch26 -p1 -b .str3231
+#%patch27 -p1 -b .avahi
 
 %if %lspp
 %patch100 -p1 -b .lspp
@@ -470,6 +474,12 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/php/modules/*.so
 
 %changelog
+* Wed Jul  1 2009 Tim Waugh <twaugh@redhat.com> 1:1.4-0.rc1.6
+- Fixed lpadmin for remote 1.3.x servers (bug #506977, STR #3231).
+
+* Tue Jun 23 2009 Tim Waugh <twaugh@redhat.com> 1:1.4-0.rc1.5
+- Added more debugging output when constructing filter chain.
+
 * Thu Jun 18 2009 Tim Waugh <twaugh@redhat.com> 1:1.4-0.rc1.4
 - More complete fix for STR #3229 (bug #506461).