Unsupported Software Findernotice of vendor support

Squid end of life dates

The support dates the endoflife.date record (community-maintained) holds for Squid, read on 30 Sep 2026: when security support ends for each version (cycle), when active support ends, and extended support where the record shows it. Below them, what Cyber Essentials, the Essential Eight, CIS Controls v8, PCI DSS and NIST SP 800-53 ask of a version past its end.

Oldest version still in support
7, security support to no end date announced
Next end date
none announced in the record
Vendor's own notice
the vendor lifecycle policy for Squid, authoritative; each version below links its own notice where the record carries one
Record
Squid
Kind
server application
Versions in the record
14
Versions past vendor support
13
Essential Eight class
an application outside the priority classes: Patch applications asks for its removal once no longer supported at ML3; at ML1 and ML2 no held Essential Eight clause turns on it.
Source
endoflife.date/squid, community-maintained, MIT licence, read 30 Sep 2026; sources

Squid versions and their support dates

as at 30 Sep 2026
CycleReleasedActive support endsSecurity support endsExtended support endsOn the read dateVendor notice
710 Jul 2025not given separatelyno end date announcednone in the recordsupported, no end date announcednone in the record
66 Jul 2023not given separately10 Jul 2025none in the recordpast vendor supportnone in the record
531 Jul 2021not given separately6 Jul 2023none in the recordpast vendor supportnone in the record
43 Jul 2018not given separately4 Oct 2021none in the recordpast vendor supportnone in the record
3.513 Jan 2015not given separately7 Aug 2018none in the recordpast vendor supportnone in the record
3.48 Dec 2013not given separately1 Aug 2015none in the recordpast vendor supportnone in the record
3.39 Feb 2013not given separately1 May 2015none in the recordpast vendor supportnone in the record
3.214 Aug 2012not given separately1 May 2015none in the recordpast vendor supportnone in the record
3.129 Mar 2010not given separately8 Jan 2013none in the recordpast vendor supportnone in the record
2.727 May 2008not given separately14 Mar 2010none in the recordpast vendor supportnone in the record
3.014 Dec 2007not given separately27 Aug 2011none in the recordpast vendor supportnotice
2.61 Jul 2006not given separately26 Mar 2010none in the recordpast vendor supportnotice
2.524 Sep 2002not given separately20 May 2006none in the recordpast vendor supportnotice
2.420 Mar 2001not given separately2 Jul 2002none in the recordpast vendor supportnotice

A version this table does not list is not in the record: the finder reads it as unknown, never supported. The dates are the record's own; nothing here states a date the record does not hold.

What the schemes ask of a version past its end

Cyber Essentials
software on in-scope devices licensed and supported by the vendor, meaning it still receives security updates; unsupported software removed or segregated (SU.1, SU.4). Cyber Essentials Plus: removed, or isolated with compensating controls (PM-02).
Essential Eight
An application outside the priority classes: Patch applications asks for its removal once no longer supported at ML3; at ML1 and ML2 no held Essential Eight clause turns on it.
CIS Controls v8, Safeguard 2.2
only software that still receives vendor support may be marked authorised; unsupported software kept for the mission needs a recorded exception with compensating controls and the acceptance of the remaining risk; support status checked at least monthly.
PCI DSS 12.3.4
hardware and software reviewed at least every 12 months: that vendors still supply timely security fixes, end-of-life announcements documented, and a remediation plan for outdated technology approved by senior management.
NIST SP 800-53 SA-22
system components replaced when support is no longer available from the developer, vendor or manufacturer, or alternative sources of continued support provided.

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