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->Privoxy 3.0.7 User Manual</TH
+>Privoxy 3.0.15 User Manual</TH
></TR
><TR
><TD
>3. What's New in this Release</A
></H1
><P
-> There are many improvements and new features since <SPAN
+> <SPAN
CLASS="APPLICATION"
->Privoxy 3.0.6</SPAN
->, the last stable release:</P
+>Privoxy 3.0.15 beta</SPAN
+> is a bug-fix release
+ for the previous beta. The changes since 3.0.14 are:</P
><P
> <P
></P
><UL
><LI
><P
-> Two new actions <A
-HREF="actions-file.html#SERVER-HEADER-TAGGER"
->server-header-tagger</A
->
- and <A
-HREF="actions-file.html#CLIENT-HEADER-TAGGER"
->client-header-tagger</A
->
- that can be used to apply arbitrary <SPAN
-CLASS="QUOTE"
->"tags"</SPAN
-> to
- each request's headers. These <SPAN
-CLASS="QUOTE"
->"tags"</SPAN
-> can then
- subsequently be used by other actions, greatly increasing
- <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
->'s flexibity and selectivity. See <A
-HREF="actions-file.html#TAG-PATTERN"
->tag patterns</A
-> for more on tags.
-
+> In case of missing server data, no error message is send to the
+ client if the request arrived on a reused connection. The client
+ is then supposed to silently retry the request without bothering
+ the user. This should significantly reduce the frequency of the
+ "No server or forwarder data received" error message many users
+ reported.
</P
></LI
><LI
><P
-> Header filtering can be done with dedicated header filters now. As a result
- the actions <SPAN
-CLASS="QUOTE"
->"filter-client-headers"</SPAN
-> and <SPAN
-CLASS="QUOTE"
->"filter-server-headers"</SPAN
->
- that were introduced with <SPAN
-CLASS="APPLICATION"
->Privoxy 3.0.5</SPAN
-> to apply
- the content filters to the headers as, well have been removed again.
- See the new actions <A
-HREF="actions-file.html#SERVER-HEADER-FILTER"
->server-header-filter</A
->
- and <A
-HREF="actions-file.html#CLIENT-HEADER-FILTER"
->client-header-filter</A
->.
+> More reliable detection of prematurely closed client sockets
+ with keep-alive enabled.
</P
></LI
><LI
><P
-> There are four new options for the main <TT
-CLASS="FILENAME"
->config</TT
-> file:
+> FEATURE_CONNECTION_KEEP_ALIVE is decoupled from
+ FEATURE_CONNECTION_SHARING and now available on
+ all platforms.
+ </P
+></LI
+><LI
+><P
+> Improved handling of POST requests on reused connections.
+ Should fix problems with stalled connections after submitting
+ form data with some browser configurations.
+ </P
+></LI
+><LI
+><P
+> Fixed various latency calculation issues.
+ </P
+></LI
+><LI
+><P
+> Allows the client to pass NTLM authentication requests to a
+ forwarding proxy. This was already assumed and hinted to work
+ in 3.0.13 beta but actually didn't. Now it's confirmed to work
+ with IE, Firefox and Chrome.
+ Thanks to Francois Botha and Wan-Teh Chang
+ </P
+></LI
+><LI
+><P
+> Fixed a calculation problem if receiving the server headers
+ takes more than two reads, that could cause Privoxy to terminate
+ the connection prematurely. Reported by Oliver.
+ </P
+></LI
+><LI
+><P
+> Compiles again on platforms such as OpenBSD and systems
+ using earlier glibc version that don't support AI_ADDRCONFIG.
+ Anonymously submitted in #2872591.
+ </P
+></LI
+><LI
+><P
+> A bunch of MS VC project files and Suse and Redhat RPM spec
+ files have been removed as they were no longer maintained for
+ quite some time.
+ </P
+></LI
+><LI
+><P
+> Overly long action lines are properly rejected with a proper
+ error message. Previously they would be either rejected as
+ invalid or cause a core dump through abort().
+ </P
+></LI
+><LI
+><P
+> Already timed-out connections are no longer temporarily remembered.
+ They weren't reused anyway, but wasted a socket slot.
+ </P
+></LI
+><LI
+><P
+> len refers to the number of bytes actually read which might
+ differ from the ones received. Adjust log messages accordingly.
+ </P
+></LI
+><LI
+><P
+> The optional JavaScript on the CGI page uses encodeURIComponent()
+ instead of escape() which doesn't encode all characters that matter.
+ Anonymously reported in #2832722.
+ </P
+></LI
+><LI
+><P
+> Fix gcc45 warnings in decompress_iob().
+ </P
+></LI
+><LI
+><P
+> Various log message improvements.
+ </P
+></LI
+><LI
+><P
+> Privoxy-Regression-Test supports redirect tests.
+ </P
+></LI
+><LI
+><P
+> Privoxy-Log-Parser can gather some connection statistics.
</P
+></LI
+></UL
+></P
+><P
+> If you missed the previous two beta versions, you may also be
+ interested in the additional changes since since 3.0.12, the
+ last stable release:</P
><P
+> <P
></P
><UL
><LI
><P
-> <A
-HREF="config.html#ALLOW-CGI-REQUEST-CRUNCHING"
->allow-cgi-request-crunching</A
->
- which allows requests for Privoxy's internal CGI pages to be
- blocked, redirected or (un)trusted like ordinary requests.
- </P
+> Added IPv6 support. Thanks to Petr Pisar who not only provided
+ the initial patch but also helped a lot with the integration.
+ </P
></LI
><LI
><P
-> <A
-HREF="config.html#SPLIT-LARGE-FORMS"
->split-large-forms</A
->
- that will work around a browser bug that caused IE6 and IE7 to
- ignore the Submit button on the Privoxy's edit-actions-for-url CGI
- page.
- </P
+> Added client-side keep-alive support.
+ </P
></LI
><LI
><P
-> <A
-HREF="config.html#ACCEPT-INTERCEPTED-REQUESTS"
->accept-intercepted-requests</A
->
- which will combine Privoxy with any packet filter to create an intercepting
- proxy for HTTP/1.1 requests (and for HTTP/1.0 requests with Host
- header set) so that explicitly setting the browser's proxy settings
- is not necessary.
- </P
+> The connection sharing code is only used if the connection-sharing
+ option is enabled.
+ </P
></LI
><LI
><P
-> <A
-HREF="config.html#TEMPLDIR"
->templdir</A
->
- to designate an alternate location for Privoxy's own CGI templates
- to make sure any locally customized templates aren't overwritten
- during upgrades.
- </P
+> The latency is taken into account when evaluating whether or not to
+ reuse a connection. This should significantly reduce the number of
+ connections problems several users reported.
+ </P
></LI
-></UL
+><LI
+><P
+> The max-client-connections option has been added to restrict
+ the number of client connections below a value enforced by
+ the operating system.
+ </P
></LI
><LI
><P
-> A new command line option <TT
-CLASS="LITERAL"
->--pre-chroot-nslookup hostname</TT
-> to
- intialize the resolver library before chroot'ing. On some systems this
- reduces the number of files that must be copied into the chroot tree.
- (Patch provided by Stephen Gildea)
+> If the server doesn't specify how long the connection stays alive,
+ Privoxy errs on the safe side of caution and assumes it's only a second.
</P
></LI
><LI
><P
-> The <A
-HREF="actions-file.html#FORWARD-OVERRIDE"
->forward-override</A
-> action
- allows changing of the forwarding settings based on client headers like the
- User-Agent, or the request origin.
- </P
+> Setting keep-alive-timeout to 0 disables keep-alive support. Previously
+ Privoxy would claim to allow persistence but not reuse the connection.
+ </P
></LI
><LI
><P
-> The <A
-HREF="actions-file.html#REDIRECT"
->redirect</A
-> action can now use regular
- expression substitutions against the original URL.
+> Pipelined requests are less likely to be mistaken for the request
+ body of the previous request. Note that Privoxy still has no real
+ pipeline support and will either serialize pipelined requests or
+ drop them in which case the client has to resent them.
</P
></LI
><LI
><P
-> <SPAN
-CLASS="APPLICATION"
->zlib</SPAN
-> support is now available as a compile
- time option for compressed documents.
+> Fixed a crash on some Windows versions when header randomization
+ is enabled and the date couldn't be parsed.
</P
></LI
><LI
><P
-> Improve various filters, and add new ones.
+> Privoxy's keep-alive timeout for the current connection is reduced
+ to the one specified in the client's Keep-Alive header.
</P
></LI
><LI
><P
-> Include support for RFC 3253 so that <TT
-CLASS="FILENAME"
->Subversion</TT
-> works
- with <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
->.
+> For HTTP/1.1 requests, Privoxy implies keep-alive support by not
+ setting any Connection header instead of using 'Connection: keep-alive'.
+ </P
+></LI
+><LI
+><P
+> If the socket isn't reusable, Privoxy doesn't temporarily waste
+ a socket slot to remember the connection.
+ </P
+></LI
+><LI
+><P
+> If keep-alive support is disabled but compiled in, the client's
+ Keep-Alive header is removed.
+ </P
+></LI
+><LI
+><P
+> Fixed a bug on mingw32 where downloading large files failed if
+ keep-alive support was enabled.
+ </P
+></LI
+><LI
+><P
+> Fixed a bug that (at least theoretically) could cause log
+ timestamps to be occasionally off by about a second.
+ </P
+></LI
+><LI
+><P
+> The configure script respects the $PATH variable when searching
+ for groups and id.
+ </P
+></LI
+><LI
+><P
+> Compressed content with extra fields couldn't be decompressed
+ and would get passed to the client unfiltered. This problem
+ has only be detected through statical analysis with clang as
+ nobody seems to be using extra fields anyway.
+ </P
+></LI
+><LI
+><P
+> If the server resets the Connection after sending only the headers
+ Privoxy forwards what it got to the client. Previously Privoxy
+ would deliver an error message instead.
+ </P
+></LI
+><LI
+><P
+> Error messages in case of connection timeouts use the right
+ HTTP status code.
+ </P
+></LI
+><LI
+><P
+> If spawning a child to handle a request fails, the client
+ gets an error message and Privoxy continues to listen for
+ new requests right away.
+ </P
+></LI
+><LI
+><P
+> The error messages in case of server-connection timeouts or
+ prematurely closed server connections are now template-based.
+ </P
+></LI
+><LI
+><P
+> If zlib support isn't compiled in, Privoxy no longer tries to
+ filter compressed content unless explicitly asked to do so.
+ </P
+></LI
+><LI
+><P
+> In case of connections that are denied based on ACL directives,
+ the memory used for the client IP is no longer leaked.
</P
></LI
><LI
><P
-> Logging can be turned on or off.
+> Fixed another small memory leak if the client request times out
+ while waiting for client headers other than the request line.
</P
></LI
><LI
><P
-> A number of improvements to Privoxy's internal CGI pages, including the
- use of favicons for error and control pages.
+> The client socket is kept open until the server socket has
+ been marked as unused. This should increase the chances that
+ the still-open connection will be reused for the client's next
+ request to the same destination. Note that this only matters
+ if connection-sharing is enabled.
</P
></LI
><LI
><P
-> Many bugfixes, memory leaks addressed, code improvements, and logging
- improvments.
+> A TODO list has been added to the source tarballs to give potential
+ volunteers a better idea of what the current goals are. Donations
+ are still welcome too: http://www.privoxy.org/faq/general.html#DONATE
</P
></LI
></UL
><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
>
- Some installers may remove earlier versions completely, including
- configuration files. Save any important configuration files!
+ 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 may not overwrite any existing configuration
- files, thinking you will want to do that. You may want to manually check
- your saved files against the newer versions to see if the improvements have
- merit, or whether there are new options that you may want to consider.
- There are a number of new features, but most won't be available unless
- these features are incorporated into your configuration somehow.
+ On the other hand, other installers don't overwrite existing configuration
+ files, thinking you will want to do that yourself.
</P
></LI
><LI
<TT
CLASS="FILENAME"
>standard.action</TT
-> now only includes the enabled actions.
- Not all actions as before.
+> has been merged into
+ the <TT
+CLASS="FILENAME"
+>default.action</TT
+> file.
</P
></LI
><LI
><P
-> Logging is off by default now. If you need logging, it can be turned on
- in the <A
-HREF="config.html#LOGFILE"
->config file</A
->.
- </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
be aware of the security issues involved.
</P
></LI
-><LI
-><P
-> The <SPAN
-CLASS="QUOTE"
->"filter-client-headers"</SPAN
-> and
- <SPAN
-CLASS="QUOTE"
->"filter-server-headers"</SPAN
-> actions that were introduced with
- <SPAN
-CLASS="APPLICATION"
->Privoxy 3.0.5</SPAN
-> to apply the content filters to
- the headers as, well have been removed and replaced with new actions.
- See the <A
-HREF="whatsnew.html"
->What's New section</A
-> above.
- </P
-></LI
></UL
></P
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></DIV
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->
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+>
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