why does php support 'only' out-of-date/obsolete versions of automake/autoconf?

From: Date: Fri, 06 Oct 2006 17:17:37 +0000
Subject: why does php support 'only' out-of-date/obsolete versions of automake/autoconf?
Groups: php.internals 
Request: Send a blank email to internals+get-25973@lists.php.net to get a copy of this message
php52-cvs' "INSTALL" states: "autoconf 2.13 and automake 1.4+ are required (newer versions of autoconf may work, but are not supported)" @ distrowatch, distros haven't shipped for ages with automake 1.4.
automake 1.4 was released:                     14-Jan-1999
current/stable automake (v1.9.6) was released: 10-Jul-2005 (1) why has this not been updated to more recent/shipped/released versions ? is there a legit reason? (2) what needs to happen to get this updated? who leads the charge?

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