Add a FAQ entry for tainted sockets
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-  <head>
-    <meta name="generator" content="HTML Tidy, see www.w3.org">
-    <title>
-      What's New in this Release
-    </title>
-    <meta name="GENERATOR" content=
-    "Modular DocBook HTML Stylesheet Version 1.79">
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-            Privoxy 3.0.18 User Manual
-          </th>
-        </tr>
-        <tr>
-          <td width="10%" align="left" valign="bottom">
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-      <hr width="100%" class="c1">
-    </div>
-    <div class="SECT1">
-      <h1 class="SECT1">
-        <a name="WHATSNEW">3. What's New in this Release</a>
-      </h1>
-      <p>
-        <span class="APPLICATION">Privoxy 3.0.17</span> is a stable release.
-        The changes since 3.0.16 stable are:
-      </p>
-      <p>
-      </p>
+<head>
+  <title>What's New in this Release</title>
+  <meta name="GENERATOR" content=
+  "Modular DocBook HTML Stylesheet Version 1.79">
+  <link rel="HOME" title="Privoxy 3.0.25 User Manual" href="index.html">
+  <link rel="PREVIOUS" title="Installation" href="installation.html">
+  <link rel="NEXT" title="Quickstart to Using Privoxy" href=
+  "quickstart.html">
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+  <meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
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+  <div class="NAVHEADER">
+    <table summary="Header navigation table" width="100%" border="0"
+    cellpadding="0" cellspacing="0">
+      <tr>
+        <th colspan="3" align="center">Privoxy 3.0.25 User Manual</th>
+      </tr>
+
+      <tr>
+        <td width="10%" align="left" valign="bottom"><a href=
+        "installation.html" accesskey="P">Prev</a></td>
+
+        <td width="80%" align="center" valign="bottom"></td>
+
+        <td width="10%" align="right" valign="bottom"><a href=
+        "quickstart.html" accesskey="N">Next</a></td>
+      </tr>
+    </table>
+    <hr align="left" width="100%">
+  </div>
+
+  <div class="SECT1">
+    <h1 class="SECT1"><a name="WHATSNEW" id="WHATSNEW">3. What's New in this
+    Release</a></h1>
+
+    <p><span class="APPLICATION">Privoxy 3.0.24</span> stable contains a
+    couple of new features but is mainly a bug-fix release. Two of the fixed
+    bugs are security issues and may be used to remotely trigger crashes on
+    platforms that carefully check memory accesses (most don't).</p>
+
+    <ul>
+      <li>
+        <p>Security fixes (denial of service):</p>
+
+        <ul>
+          <li>
+            <p>Prevent invalid reads in case of corrupt chunk-encoded
+            content. CVE-2016-1982. Bug discovered with afl-fuzz and
+            AddressSanitizer.</p>
+          </li>
+
+          <li>
+            <p>Remove empty Host headers in client requests. Previously they
+            would result in invalid reads. CVE-2016-1983. Bug discovered with
+            afl-fuzz and AddressSanitizer.</p>
+          </li>
+        </ul>
+      </li>
+
+      <li>
+        <p>Bug fixes:</p>
+
+        <ul>
+          <li>
+            <p>When using socks5t, send the request body optimistically as
+            well. Previously the request body wasn't guaranteed to be sent at
+            all and the error message incorrectly blamed the server. Fixes
+            #1686 reported by Peter M&uuml;ller and G4JC.</p>
+          </li>
+
+          <li>
+            <p>Fixed buffer scaling in execute_external_filter() that could
+            lead to crashes. Submitted by Yang Xia in #892.</p>
+          </li>
+
+          <li>
+            <p>Fixed crashes when executing external filters on platforms
+            like Mac OS X. Reported by Jonathan McKenzie on
+            ijbswa-users@.</p>
+          </li>
+
+          <li>
+            <p>Properly parse ACL directives with ports when compiled with
+            HAVE_RFC2553. Previously the port wasn't removed from the host
+            and in case of 'permit-access 127.0.0.1 example.org:80' Privoxy
+            would try (and fail) to resolve "example.org:80" instead of
+            example.org. Reported by Pak Chan on ijbswa-users@.</p>
+          </li>
+
+          <li>
+            <p>Check requests more carefully before serving them forcefully
+            when blocks aren't enforced. Privoxy always adds the force token
+            at the beginning of the path, but would previously accept it
+            anywhere in the request line. This could result in requests being
+            served that should be blocked. For example in case of pages that
+            were loaded with force and contained JavaScript to create
+            additionally requests that embed the origin URL (thus inheriting
+            the force prefix). The bug is not considered a security issue and
+            the fix does not make it harder for remote sites to intentionally
+            circumvent blocks if Privoxy isn't configured to enforce them.
+            Fixes #1695 reported by Korda.</p>
+          </li>
+
+          <li>
+            <p>Normalize the request line in intercepted requests to make
+            rewriting the destination more convenient. Previously rewrites
+            for intercepted requests were expected to fail unless $hostport
+            was being used, but they failed "the wrong way" and would result
+            in an out-of-memory message (vanilla host patterns) or a crash
+            (extended host patterns). Reported by "Guybrush Threepwood" in
+            #1694.</p>
+          </li>
+
+          <li>
+            <p>Enable socket lingering for the correct socket. Previously it
+            was repeatedly enabled for the listen socket instead of for the
+            accepted socket. The bug was found by code inspection and did not
+            cause any (reported) issues.</p>
+          </li>
+
+          <li>
+            <p>Detect and reject parameters for parameter-less actions.
+            Previously they were silently ignored.</p>
+          </li>
+
+          <li>
+            <p>Fixed invalid reads in internal and outdated pcre code. Found
+            with afl-fuzz and AddressSanitizer.</p>
+          </li>
+
+          <li>
+            <p>Prevent invalid read when loading invalid action files. Found
+            with afl-fuzz and AddressSanitizer.</p>
+          </li>
+
+          <li>
+            <p>Windows build: Use the correct function to close the event
+            handle. It's unclear if this bug had a negative impact on
+            Privoxy's behaviour. Reported by Jarry Xu in #891.</p>
+          </li>
+
+          <li>
+            <p>In case of invalid forward-socks5(t) directives, use the
+            correct directive name in the error messages. Previously they
+            referred to forward-socks4t failures. Reported by Joel Verhagen
+            in #889.</p>
+          </li>
+        </ul>
+      </li>
+
+      <li>
+        <p>General improvements:</p>
+
+        <ul>
+          <li>
+            <p>Set NO_DELAY flag for the accepting socket. This significantly
+            reduces the latency if the operating system is not configured to
+            set the flag by default. Reported by Johan Sintorn in #894.</p>
+          </li>
+
+          <li>
+            <p>Allow to build with mingw x86_64. Submitted by Rustam
+            Abdullaev in #135.</p>
+          </li>
+
+          <li>
+            <p>Introduce the new forwarding type 'forward-webserver'.
+            Currently it is only supported by the forward-override{} action
+            and there's no config directive with the same name. The
+            forwarding type is similar to 'forward', but the request line
+            only contains the path instead of the complete URL.</p>
+          </li>
+
+          <li>
+            <p>The CGI editor no longer treats 'standard.action' special.
+            Nowadays the official "standards" are part of default.action and
+            there's no obvious reason to disallow editing them through the
+            cgi editor anyway (if the user decided that the lack of
+            authentication isn't an issue in her environment).</p>
+          </li>
+
+          <li>
+            <p>Improved error messages when rejecting intercepted requests
+            with unknown destination.</p>
+          </li>
+
+          <li>
+            <p>A couple of log messages now include the number of active
+            threads.</p>
+          </li>
+
+          <li>
+            <p>Removed non-standard Proxy-Agent headers in HTTP snipplets to
+            make testing more convenient.</p>
+          </li>
+
+          <li>
+            <p>Include the error code for pcre errors Privoxy does not
+            recognize.</p>
+          </li>
+
+          <li>
+            <p>Config directives with numerical arguments are checked more
+            carefully.</p>
+          </li>
+
+          <li>
+            <p>Privoxy's malloc() wrapper has been changed to prevent
+            zero-size allocations which should only occur as the result of
+            bugs.</p>
+          </li>
+
+          <li>
+            <p>Various cosmetic changes.</p>
+          </li>
+        </ul>
+      </li>
+
+      <li>
+        <p>Action file improvements:</p>
+
+        <ul>
+          <li>
+            <p>Unblock ".deutschlandradiokultur.de/". Reported by u302320 in
+            #924.</p>
+          </li>
+
+          <li>
+            <p>Add two fast-redirect exceptions for "yandex.ru".</p>
+          </li>
+
+          <li>
+            <p>Disable filter{banners-by-size} for ".plasmaservice.de/".</p>
+          </li>
+
+          <li>
+            <p>Unblock "klikki.fi/adv/".</p>
+          </li>
+
+          <li>
+            <p>Block requests for "resources.infolinks.com/". Reported by
+            "Black Rider" on ijbswa-users@.</p>
+          </li>
+
+          <li>
+            <p>Block a bunch of criteo domains. Reported by Black Rider.</p>
+          </li>
+
+          <li>
+            <p>Block "abs.proxistore.com/abe/". Reported by Black Rider.</p>
+          </li>
+
+          <li>
+            <p>Disable filter{banners-by-size} for
+            ".black-mosquito.org/".</p>
+          </li>
+
+          <li>
+            <p>Disable fast-redirects for "disqus.com/".</p>
+          </li>
+        </ul>
+      </li>
+
+      <li>
+        <p>Documentation improvements:</p>
+
+        <ul>
+          <li>
+            <p>FAQ: Explicitly point fingers at ASUS as an example of a
+            company that has been reported to force malware based on Privoxy
+            upon its customers.</p>
+          </li>
+
+          <li>
+            <p>Correctly document the action type for a bunch of
+            "multi-value" actions that were incorrectly documented to be
+            "parameterized". Reported by Gregory Seidman on
+            ijbswa-users@.</p>
+          </li>
+
+          <li>
+            <p>Fixed the documented type of the forward-override{} action
+            which is obviously 'parameterized'.</p>
+          </li>
+        </ul>
+      </li>
+
+      <li>
+        <p>Website improvements:</p>
+
+        <ul>
+          <li>
+            <p>Users who don't trust binaries served by SourceForge can get
+            them from a mirror. Migrating away from SourceForge is planned
+            for 2016 (TODO list item #53).</p>
+          </li>
+
+          <li>
+            <p>The website is now available as onion service
+            (http://jvauzb4sb3bwlsnc.onion/).</p>
+          </li>
+        </ul>
+      </li>
+    </ul>
+
+    <div class="SECT2">
+      <h2 class="SECT2"><a name="UPGRADERSNOTE" id="UPGRADERSNOTE">3.1. Note
+      to Upgraders</a></h2>
+
+      <p>A quick list of things to be aware of before upgrading from earlier
+      versions of <span class="APPLICATION">Privoxy</span>:</p>
+
       <ul>
         <li>
-          <p>
-            Fixed last-chunk-detection for responses where the content was
-            small enough to be read with the body, causing Privoxy to wait
-            for the end of the content until the server closed the connection
-            or the request timed out. Reported by "Karsten" in #3028326.
-          </p>
-        </li>
-        <li>
-          <p>
-            Responses with status code 204 weren't properly detected as
-            body-less like RFC2616 mandates. Like the previous bug, this
-            caused Privoxy to wait for the end of the content until the
-            server closed the connection or the request timed out. Fixes
-            #3022042 and #3025553, reported by a user with no visible name.
-            Most likely also fixes a bunch of other AJAX-related problem
-            reports that got closed in the past due to insufficient
-            information and lack of feedback.
-          </p>
-        </li>
-        <li>
-          <p>
-            Fixed an ACL bug that made it impossible to build a blacklist.
-            Usually the ACL directives are used in a whitelist, which worked
-            as expected, but blacklisting is still useful for public proxies
-            where one only needs to deny known abusers access.
-          </p>
-        </li>
-        <li>
-          <p>
-            Added LOG_LEVEL_RECEIVED to log the not-yet-parsed data read from
-            the network. This should make debugging various parsing issues a
-            lot easier.
-          </p>
-        </li>
-        <li>
-          <p>
-            The IPv6 code is enabled by default on Windows versions that
-            support it. Patch submitted by oCameLo in #2942729.
-          </p>
-        </li>
-        <li>
-          <p>
-            In mingw32 versions, the user.filter file is reachable through
-            the GUI, just like default.filter is. Feature request 3040263.
-          </p>
-        </li>
-        <li>
-          <p>
-            Added the configure option --enable-large-file-support to set a
-            few defines that are required by platforms like GNU/Linux to
-            support files larger then 2GB. Mainly interesting for users
-            without proper logfile management.
-          </p>
-        </li>
-        <li>
-          <p>
-            Logging with "debug 16" no longer stops at the first nul byte
-            which is pretty useless. Non-printable characters are replaced
-            with their hex value so the result can't span multiple lines
-            making parsing them harder then necessary.
-          </p>
-        </li>
-        <li>
-          <p>
-            Privoxy logs when reading an action, filter or trust file.
-          </p>
-        </li>
-        <li>
-          <p>
-            Fixed incorrect regression test markup which caused a test in
-            3.0.16 to fail while Privoxy itself was working correctly. While
-            Privoxy accepts hide-referer, too, the action name is actually
-            hide-referrer which is also the name used one the final results
-            page, where the test expected the alias.
-          </p>
-        </li>
-        <li>
-          <p>
-            CGI interface improvements:
-          </p>
-          <ul>
-            <li>
-              <p>
-                In finish_http_response(), continue to add the 'Connection:
-                close' header if the client connection will not be kept
-                alive. Anonymously pointed out in #2987454.
-              </p>
-            </li>
-            <li>
-              <p>
-                Apostrophes in block messages no longer cause parse errors
-                when the blocked page is viewed with JavaScript enabled.
-                Reported by dg1727 in #3062296.
-              </p>
-            </li>
-            <li>
-              <p>
-                Fix a bunch of anchors that used underscores instead of
-                dashes.
-              </p>
-            </li>
-            <li>
-              <p>
-                Allow to keep the client connection alive after crunching the
-                previous request. Already opened server connections can be
-                kept alive, too.
-              </p>
-            </li>
-            <li>
-              <p>
-                In cgi_show_url_info(), don't forget to prefix URLs that only
-                contain http:// or https:// in the path. Fixes #2975765
-                reported by Adam Piggott.
-              </p>
-            </li>
-            <li>
-              <p>
-                Show the 404 CGI page if cgi_send_user_manual() is called
-                while local user manual delivery is disabled.
-              </p>
-            </li>
-          </ul>
-        </li>
-        <li>
-          <p>
-            Action file improvements:
-          </p>
-          <ul>
-            <li>
-              <p>
-                Enable user.filter by default. Suggested by David White in
-                #3001830.
-              </p>
-            </li>
-            <li>
-              <p>
-                Block .sitestat.com/. Reported by johnd16 in #3002725.
-              </p>
-            </li>
-            <li>
-              <p>
-                Block .atemda.com/. Reported by johnd16 in #3002723.
-              </p>
-            </li>
-            <li>
-              <p>
-                Block js.adlink.net/. Reported by johnd16 in #3002720.
-              </p>
-            </li>
-            <li>
-              <p>
-                Block .analytics.yahoo.com/. Reported by johnd16 in #3002713.
-              </p>
-            </li>
-            <li>
-              <p>
-                Block sb.scorecardresearch.com, too. Reported by dg1727 in
-                #2992652.
-              </p>
-            </li>
-            <li>
-              <p>
-                Fix problems noticed on Yahoo mail and news pages.
-              </p>
-            </li>
-            <li>
-              <p>
-                Remove the too broad yahoo section, only keeping the
-                fast-redirects exception as discussed on ijbswa-devel@.
-              </p>
-            </li>
-            <li>
-              <p>
-                Don't block adesklets.sourceforge.net. Reported in #2974204.
-              </p>
-            </li>
-            <li>
-              <p>
-                Block chartbeat ping tracking. Reported in #2975895.
-              </p>
-            </li>
-            <li>
-              <p>
-                Tag CSS and image requests with cautious and medium settings,
-                too.
-              </p>
-            </li>
-            <li>
-              <p>
-                Don't handle view.atdmt.com as image. It's used for
-                click-throughs so users should be able to "go there anyway".
-                Reported by Adam Piggott in #2975927.
-              </p>
-            </li>
-            <li>
-              <p>
-                Also let the refresh-tags filter remove invalid refresh tags
-                where the 'url=' part is missing. Anonymously reported in
-                #2986382. While at it, update the description to mention the
-                fact that only refresh tags with refresh times above 9
-                seconds are covered.
-              </p>
-            </li>
-            <li>
-              <p>
-                javascript needs to be blocked with +handle-as-empty-document
-                to work around Firefox bug 492459. So move .js blockers from
-                +block{Might be a web-bug.} -handle-as-empty-document to
-                +block{Might be a web-bug.} +handle-as-empty-document.
-              </p>
-            </li>
-            <li>
-              <p>
-                ijbswa-Feature Requests-3006719 - Block 160x578 Banners.
-              </p>
-            </li>
-            <li>
-              <p>
-                Block another omniture tracking domain.
-              </p>
-            </li>
-            <li>
-              <p>
-                Added a range-requests tagger.
-              </p>
-            </li>
-            <li>
-              <p>
-                Added two sections to get Flickr's Ajax interface working
-                with default pre-settings. If you change the configuration to
-                block cookies by default, you'll need additional exceptions.
-                Reported by Mathias Homann in #3101419 and by Patrick on
-                ijbswa-users@.
-              </p>
-            </li>
-          </ul>
+          <p>The recommended way to upgrade <span class=
+          "APPLICATION">Privoxy</span> is to backup your old configuration
+          files, install the new ones, verify that <span class=
+          "APPLICATION">Privoxy</span> is working correctly and finally merge
+          back your changes using <span class="APPLICATION">diff</span> and
+          maybe <span class="APPLICATION">patch</span>.</p>
+
+          <p>There are a number of new features in each <span class=
+          "APPLICATION">Privoxy</span> release and most of them have to be
+          explicitly enabled in the configuration files. Old configuration
+          files obviously don't do that and due to syntax changes using old
+          configuration files with a new <span class=
+          "APPLICATION">Privoxy</span> isn't always possible anyway.</p>
         </li>
+
         <li>
-          <p>
-            Documentation improvements:
-          </p>
-          <ul>
-            <li>
-              <p>
-                Explicitly mention how to match all URLs.
-              </p>
-            </li>
-            <li>
-              <p>
-                Consistently recommend socks5 in the Tor FAQ entry and
-                mention its advantage compared to socks4a. Reported by David
-                in #2960129.
-              </p>
-            </li>
-            <li>
-              <p>
-                Slightly improve the explanation of why filtering may appear
-                slower than it is.
-              </p>
-            </li>
-            <li>
-              <p>
-                Grammar fixes for the ACL section.
-              </p>
-            </li>
-            <li>
-              <p>
-                Fixed a link to the 'intercepting' entry and add another one.
-              </p>
-            </li>
-            <li>
-              <p>
-                Rename the 'Other' section to 'Mailing Lists' and reword it
-                to make it clear that nobody is forced to use the trackers
-              </p>
-            </li>
-            <li>
-              <p>
-                Note that 'anonymously' posting on the trackers may not
-                always be possible.
-              </p>
-            </li>
-            <li>
-              <p>
-                Suggest to enable debug 32768 when suspecting parsing
-                problems.
-              </p>
-            </li>
-          </ul>
+          <p>Note that some installers remove earlier versions completely,
+          including configuration files, therefore you should really save any
+          important configuration files!</p>
         </li>
+
         <li>
-          <p>
-            Privoxy-Log-Parser improvements:
-          </p>
-          <ul>
-            <li>
-              <p>
-                Gather statistics for ressources, methods, and HTTP versions
-                used by the client.
-              </p>
-            </li>
-            <li>
-              <p>
-                Also gather statistics for blocked and redirected requests.
-              </p>
-            </li>
-            <li>
-              <p>
-                Provide the percentage of keep-alive offers the client
-                accepted.
-              </p>
-            </li>
-            <li>
-              <p>
-                Add a --url-statistics-threshold option.
-              </p>
-            </li>
-            <li>
-              <p>
-                Add a --host-statistics-threshold option to also gather
-                statistics about how many request where made per host.
-              </p>
-            </li>
-            <li>
-              <p>
-                Fix a bug in handle_loglevel_header() where a 'scan: ' got
-                lost.
-              </p>
-            </li>
-            <li>
-              <p>
-                Add a --shorten-thread-ids option to replace the thread id
-                with a decimal number.
-              </p>
-            </li>
-            <li>
-              <p>
-                Accept and ignore: Looks like we got the last chunk together
-                with the server headers. We better stop reading.
-              </p>
-            </li>
-            <li>
-              <p>
-                Accept and ignore: Continue hack in da house.
-              </p>
-            </li>
-            <li>
-              <p>
-                Accept and higlight: Rejecting connection from 10.0.0.2.
-                Maximum number of connections reached.
-              </p>
-            </li>
-            <li>
-              <p>
-                Accept and highlight: Loading actions file:
-                /usr/local/etc/privoxy/default.action
-              </p>
-            </li>
-            <li>
-              <p>
-                Accept and highlight: Loading filter file:
-                /usr/local/etc/privoxy/default.filter
-              </p>
-            </li>
-            <li>
-              <p>
-                Accept and highlight: Killed all-caps Host header line: HOST:
-                bestproxydb.com
-              </p>
-            </li>
-            <li>
-              <p>
-                Accept and highlight: Reducing expected bytes to 0. Marking
-                the server socket tainted after throwing 4 bytes away.
-              </p>
-            </li>
-            <li>
-              <p>
-                Accept: Merged multiple header lines to: 'X-FORWARDED-PROTO:
-                http X-HOST: 127.0.0.1'
-              </p>
-            </li>
-          </ul>
+          <p>On the other hand, other installers don't overwrite existing
+          configuration files, thinking you will want to do that
+          yourself.</p>
         </li>
+
         <li>
-          <p>
-            Code cleanups:
-          </p>
-          <ul>
-            <li>
-              <p>
-                Remove the next member from the client_state struct. Only the
-                main thread needs access to all client states so give it its
-                own struct.
-              </p>
-            </li>
-            <li>
-              <p>
-                Garbage-collect request_contains_null_bytes().
-              </p>
-            </li>
-            <li>
-              <p>
-                Ditch redundant code in unload_configfile().
-              </p>
-            </li>
-            <li>
-              <p>
-                Ditch LogGetURLUnderCursor() which doesn't seem to be used
-                anywhere.
-              </p>
-            </li>
-            <li>
-              <p>
-                In write_socket(), remove the write-only variable write_len
-                in an ifdef __OS2__ block. Spotted by cppcheck.
-              </p>
-            </li>
-            <li>
-              <p>
-                In connect_to(), don't declare the variable 'flags' on OS/2
-                where it isn't used. Spotted by cppcheck.
-              </p>
-            </li>
-            <li>
-              <p>
-                Limit the scope of various variables. Spotted by cppcheck.
-              </p>
-            </li>
-            <li>
-              <p>
-                In add_to_iob(), turn an interestingly looking for loop into
-                a boring while loop.
-              </p>
-            </li>
-            <li>
-              <p>
-                Code cleanup in preparation for external filters.
-              </p>
-            </li>
-            <li>
-              <p>
-                In listen_loop(), mention the socket on which we accepted the
-                connection, not just the source IP address.
-              </p>
-            </li>
-            <li>
-              <p>
-                In write_socket(), also log the socket we're writing to.
-              </p>
-            </li>
-            <li>
-              <p>
-                In log_error(), assert that escaped characters get logged
-                completely or not at all.
-              </p>
-            </li>
-            <li>
-              <p>
-                In log_error(), assert that ival and sval have reasonable
-                values. There's no reason not to abort() if they don't.
-              </p>
-            </li>
-            <li>
-              <p>
-                Remove an incorrect cgi_error_unknown() call in a
-                cannot-happen-situation in send_crunch_response().
-              </p>
-            </li>
-            <li>
-              <p>
-                Clean up white-space in http_response definition and move the
-                crunch_reason to the beginning.
-              </p>
-            </li>
-            <li>
-              <p>
-                Turn http_response.reason into an enum and rename it to
-                http_response.crunch_reason.
-              </p>
-            </li>
-            <li>
-              <p>
-                Silence a 'gcc (Debian 4.3.2-1.1) 4.3.2' warning on i686
-                GNU/Linux.
-              </p>
-            </li>
-            <li>
-              <p>
-                Fix white-space in a log message in
-                remove_chunked_transfer_coding(). While at it, add a note
-                that the message doesn't seem to be entirely correct and
-                should be improved later on.
-              </p>
-            </li>
-          </ul>
+          <p>In the default configuration only fatal errors are logged now.
+          You can change that in the <a href="config.html#DEBUG">debug
+          section</a> of the configuration file. You may also want to enable
+          more verbose logging until you verified that the new <span class=
+          "APPLICATION">Privoxy</span> version is working as expected.</p>
         </li>
+
         <li>
-          <p>
-            GNUmakefile improvements:
-          </p>
-          <ul>
-            <li>
-              <p>
-                Use $(SSH) instead of ssh, so one only needs to specify a
-                username once.
-              </p>
-            </li>
-            <li>
-              <p>
-                Removed references to the action feedback thingy that hasn't
-                been working for years.
-              </p>
-            </li>
-            <li>
-              <p>
-                Consistently use shell.sourceforge.net instead of
-                shell.sf.net so one doesn't need to check server fingerprints
-                twice.
-              </p>
-            </li>
-            <li>
-              <p>
-                Removed GNUisms in the webserver and webactions targets so
-                they work with standard tar.
-              </p>
-            </li>
-          </ul>
+          <p>Three other config file settings are now off by default:
+          <a href="config.html#ENABLE-REMOTE-TOGGLE">enable-remote-toggle</a>,
+          <a href=
+          "config.html#ENABLE-REMOTE-HTTP-TOGGLE">enable-remote-http-toggle</a>,
+          and <a href=
+          "config.html#ENABLE-EDIT-ACTIONS">enable-edit-actions</a>. If you
+          use or want these, you will need to explicitly enable them, and be
+          aware of the security issues involved.</p>
         </li>
       </ul>
-
-      <div class="SECT2">
-        <h2 class="SECT2">
-          <a name="UPGRADERSNOTE">3.1. Note to Upgraders</a>
-        </h2>
-        <p>
-          A quick list of things to be aware of before upgrading from earlier
-          versions of <span class="APPLICATION">Privoxy</span>:
-        </p>
-        <p>
-        </p>
-        <ul>
-          <li>
-            <p>
-              The recommended way to upgrade <span class=
-              "APPLICATION">Privoxy</span> is to backup your old
-              configuration files, install the new ones, verify that <span
-              class="APPLICATION">Privoxy</span> is working correctly and
-              finally merge back your changes using <span class=
-              "APPLICATION">diff</span> and maybe <span class=
-              "APPLICATION">patch</span>.
-            </p>
-            <p>
-              There are a number of new features in each <span class=
-              "APPLICATION">Privoxy</span> release and most of them have to
-              be explicitly enabled in the configuration files. Old
-              configuration files obviously don't do that and due to syntax
-              changes using old configuration files with a new <span class=
-              "APPLICATION">Privoxy</span> isn't always possible anyway.
-            </p>
-          </li>
-          <li>
-            <p>
-              Note that some installers remove earlier versions completely,
-              including configuration files, therefore you should really save
-              any important configuration files!
-            </p>
-          </li>
-          <li>
-            <p>
-              On the other hand, other installers don't overwrite existing
-              configuration files, thinking you will want to do that
-              yourself.
-            </p>
-          </li>
-          <li>
-            <p>
-              <tt class="FILENAME">standard.action</tt> has been merged into
-              the <tt class="FILENAME">default.action</tt> file.
-            </p>
-          </li>
-          <li>
-            <p>
-              In the default configuration only fatal errors are logged now.
-              You can change that in the <a href="config.html#DEBUG">debug
-              section</a> of the configuration file. You may also want to
-              enable more verbose logging until you verified that the new
-              <span class="APPLICATION">Privoxy</span> version is working as
-              expected.
-            </p>
-          </li>
-          <li>
-            <p>
-              Three other config file settings are now off by default: <a
-              href=
-              "config.html#ENABLE-REMOTE-TOGGLE">enable-remote-toggle</a>, <a
-              href=
-              "config.html#ENABLE-REMOTE-HTTP-TOGGLE">enable-remote-http-toggle</a>,
-              and <a href=
-              "config.html#ENABLE-EDIT-ACTIONS">enable-edit-actions</a>. If
-              you use or want these, you will need to explicitly enable them,
-              and be aware of the security issues involved.
-            </p>
-          </li>
-        </ul>
-      </div>
-    </div>
-    <div class="NAVFOOTER">
-      <hr width="100%" class="c1">
-      <table summary="Footer navigation table" width="100%" border="0"
-      cellpadding="0" cellspacing="0">
-        <tr>
-          <td width="33%" align="left" valign="top">
-            <a href="installation.html" accesskey="P">Prev</a>
-          </td>
-          <td width="34%" align="center" valign="top">
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-        </tr>
-        <tr>
-          <td width="33%" align="left" valign="top">
-            Installation
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-            &nbsp;
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+  <div class="NAVFOOTER">
+    <hr align="left" width="100%">
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+    <table summary="Footer navigation table" width="100%" border="0"
+    cellpadding="0" cellspacing="0">
+      <tr>
+        <td width="33%" align="left" valign="top"><a href="installation.html"
+        accesskey="P">Prev</a></td>
 
+        <td width="34%" align="center" valign="top"><a href="index.html"
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+        <td width="33%" align="right" valign="top"><a href="quickstart.html"
+        accesskey="N">Next</a></td>
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+        <td width="33%" align="left" valign="top">Installation</td>
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+        <td width="34%" align="center" valign="top">&nbsp;</td>
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+        <td width="33%" align="right" valign="top">Quickstart to Using
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