The latest version of Squid can be downloaded from Softpedia
Squid, a caching proxy for the Web supporting HTTP, HTTPS, and FTP, that helps reduce bandwidth and improves response times by caching and reusing frequently requested web pages, is now at version 3.3.4.Squid 3.3.4 is mainly a maintenance release, with just a few bug fixes and improvements. Users should upgrade nonetheless.
Highlights of Squid 3.3.4:
• A SQL Database logging helper has been added. This program writes Squid access.log entries to an SQL database;
• A Time-Quota session helper has been added. An administrator can define time budgets;
• The request_header_add option is added to insert HTTP header fields to outgoing HTTP requests;
• Custom headers are now added on HTTP traffic sent to upstream servers.
A complete list of changes and updates can be found in the official announcement.
Download Squid 3.3.4 right now from Softpedia.