[squid-announce] Squid 4.2 is available

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[squid-announce] Squid 4.2 is available

Amos Jeffries
Administrator
The Squid HTTP Proxy team is very pleased to announce the availability
of the Squid-4.2 release!


This release is a bug fix release resolving several issues found in the
prior Squid releases.


The major changes to be aware of:


* Regression: Restored support for the https_port clientca option

This TLS/SSL option was incorrectly stating this option as no longer
supported in configurations other than those using "ssl-bump" option.
It was also not loading the CA certificate correctly in any build.

This release removes those incorrect notices and fixes loading of
the CA certificate.

There are still signs of possible issues challenging for client X.509
certificate during TLS handshake which have not yet been confirmed and
tracked down. There are also indications that the remaining issue(s)
could be advanced OpenSSL options implicitly preventing the challenge.


* Regression Bug 4870: milliseconds logformats prepend 0s instead of
  spaces

This bug appears when a milliseconds (%tu, %tr, %dt, %<pt, %>pt)
logformat macro is used with a specific minimum output string size
indicated. The result is a value prefixed with 0's which log processors
can confuse with octal notation in some common circumstances. This
release now correctly pads with whitespace unless 0's are explicitly
indicated by the macro syntax.


* Bug 4843 pt3: GCC-8 fixes and refactoring

This release completes the formal support for GCC-8 compiler changes. At
least in relation to the features and build settings normally produced
by ./configure options.

There are known to be some issues when building with custom compiler
flags for higher than normal optimization and extended warnings. While
such custom builds are intentionally permitted they are not officially
supported by the Squid Project core developers.


* Bug 4861: HTTPMSGLOCK missing pointer safety

This bug can appear when eCAP adaptors are being used along with
SSL-Bump of intercepted HTTPS traffic. It is also present in
Squid-3.5.27 and older but does not have any externally triggerable effects.


* Fix %>ru logging of huge URLs

When dealing with an HTTP request header that Squid can parse but that
contain request URI length exceeding the 8K limit, Squid should log the
URL (prefix) instead of a dash. Logging the URL helps with triaging
these unusual requests. The older %ru macro was already logging these
huge URLs, but %>ru macro was logging a dash. Now both log the URL (or
its prefix).

See the logformat documentation for more details on these macros
behaviour <http://www.squid-cache.org/Doc/config/logformat/>



  All users of Squid-4 are urged to upgrade to this release as soon as
  possible.

  All users of Squid-3 are encouraged to upgrade where possible.


See the ChangeLog for the full list of changes in this and earlier
releases.

Please refer to the release notes at
http://www.squid-cache.org/Versions/v4/RELEASENOTES.html
when you are ready to make the switch to Squid-4

This new release can be downloaded from our HTTP or FTP servers

  http://www.squid-cache.org/Versions/v4/
  ftp://ftp.squid-cache.org/pub/squid/
  ftp://ftp.squid-cache.org/pub/archive/4/

or the mirrors. For a list of mirror sites see

  http://www.squid-cache.org/Download/http-mirrors.html
  http://www.squid-cache.org/Download/mirrors.html

If you encounter any issues with this release please file a bug report.
  http://bugs.squid-cache.org/


Amos Jeffries
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