A new update is available for Fedora Core - Fedora Core 3 Update: squid-2.5.STABLE11-2.FC3. Here the announcement:

Fedora Update Notification
FEDORA-2005-947
2005-09-29
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Product : Fedora Core 3
Name : squid
Version : 2.5.STABLE11
Release : 2.FC3
Summary : The Squid proxy caching server.
Description :
Squid is a high-performance proxy caching server for Web clients,
supporting FTP, gopher, and HTTP data objects. Unlike traditional
caching software, Squid handles all requests in a single,
non-blocking, I/O-driven process. Squid keeps meta data and especially
hot objects cached in RAM, caches DNS lookups, supports non-blocking
DNS lookups, and implements negative caching of failed requests.

Squid consists of a main server program squid, a Domain Name System
lookup program (dnsserver), a program for retrieving FTP data
(ftpget), and some management and client tools.

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* Thu Sep 29 2005 Martin Stransky <stransky@redhat.com> 7:2.5.STABLE11-2.FC3
- added patch for delay pools and some minor fixes


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This update can be downloaded from:
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/3/

6f780f9512ba73c2bd5848381561a585 SRPMS/squid-2.5.STABLE11-2.FC3.src.rpm
97204c71237e42079b6117b83709e65f x86_64/squid-2.5.STABLE11-2.FC3.x86_64.rpm
c783b6b23e174b0b9b1d1aae05ab05f6 x86_64/debug/squid-debuginfo-2.5.STABLE11-2.FC3.x86_64.rpm
7b39680311ca4bb26c319594607b983a i386/squid-2.5.STABLE11-2.FC3.i386.rpm
c11b79da92348483219bc784c1f0f238 i386/debug/squid-debuginfo-2.5.STABLE11-2.FC3.i386.rpm

This update can also be installed with the Update Agent; you can
launch the Update Agent with the 'up2date' command.