squid end of life dates — full support timeline
13 of 14 tracked squid releases have already reached end of life. The dates below are published support dates, not estimates.
Version support timeline
| Release | Released | End of life | Latest | Status |
|---|---|---|---|---|
| 7 | 2025-07-10 | not announced | 7.6 | supported |
| 6 | 2023-07-06 | 2025-07-10 | 6.14 | ended |
| 5 | 2021-07-31 | 2023-07-06 | 5.9 | ended |
| 4 | 2018-07-03 | 2021-10-04 | 4.17 | ended |
| 3.5 | 2015-01-13 | 2018-08-07 | 3.5.28 | ended |
| 3.4 | 2013-12-08 | 2015-08-01 | 3.4.14 | ended |
| 3.3 | 2013-02-09 | 2015-05-01 | 3.3.14 | ended |
| 3.2 | 2012-08-14 | 2015-05-01 | 3.2.14 | ended |
| 3.1 | 2010-03-29 | 2013-01-08 | 3.1.23 | ended |
| 2.7 | 2008-05-27 | 2010-03-14 | 2.7.9 | ended |
| 3.0 | 2007-12-14 | 2011-08-27 | 3.0.26 | ended |
| 2.6 | 2006-07-01 | 2010-03-26 | 2.6.24 | ended |
| 2.5 | 2002-09-24 | 2006-05-20 | 2.5.14 | ended |
| 2.4 | 2001-03-20 | 2002-07-02 | 2.4.7 | ended |
Who is affected
Anyone running an unsupported squid release. After end of life a version stops receiving security patches, which typically becomes an audit or compliance finding before it becomes an outage. Upgrading to a supported release is the migration path; the table above shows which releases still qualify.
Source
These dates are maintained by endoflife.date/squid, an open community dataset that cites vendor announcements. Verify against the vendor before making a compliance decision.
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