Unsupported Software Findernotice of vendor support
Software

Qt end of life dates

The support dates the endoflife.date record (community-maintained) holds for Qt, 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
none: every version in the record is past vendor support on the read date
Next end date
none announced in the record
Editions and channels
LTS marks a long-term support version, with longer dates than the standard versions beside it.
Vendor's own notice
the vendor lifecycle policy for Qt, authoritative; each version below links its own notice where the record carries one
Record
Qt
Kind
framework or library
Versions in the record
19
Versions past vendor support
19
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/qt, community-maintained, MIT licence, read 30 Sep 2026; sources

Qt versions and their support dates

as at 30 Sep 2026
CycleReleasedActive support endsSecurity support endsExtended support endsOn the read dateVendor notice
6.1123 Mar 2026not given separately22 Sep 202623 Mar 2027extended support onlynone in the record
6.107 Oct 2025not given separately7 Apr 20267 Oct 2026extended support onlynone in the record
6.92 Apr 2025not given separately7 Oct 20252 Apr 2026past vendor supportnone in the record
6.8 LTS7 Oct 2024not given separately2 Apr 20258 Oct 2029extended support onlynone in the record
6.728 Mar 2024not given separately7 Oct 20242 Apr 2025past vendor supportnone in the record
6.69 Oct 2023not given separately2 Apr 20249 Oct 2024past vendor supportnone in the record
6.5 LTS31 Mar 2023not given separately9 Oct 202331 Mar 2026past vendor supportnotice
6.428 Sep 2022not given separately31 Mar 202328 Sep 2023past vendor supportnone in the record
6.311 Apr 2022not given separately28 Sep 202211 Apr 2023past vendor supportnone in the record
6.2 LTS30 Sep 2021not given separately11 Apr 202230 Sep 2024past vendor supportnone in the record
6.15 May 2021not given separately30 Sep 20215 May 2022past vendor supportnone in the record
6.08 Dec 2020not given separately5 May 20218 Dec 2021past vendor supportnone in the record
5.15 LTS25 May 2020not given separately8 Dec 202025 May 2025past vendor supportnotice
5.1411 Dec 2019not given separately12 Dec 2020none in the recordpast vendor supportnotice
5.1318 Jun 2019not given separately19 Jun 2020none in the recordpast vendor supportnone in the record
5.12 LTS4 Dec 2018not given separately5 Dec 2021none in the recordpast vendor supportnone in the record
5.929 May 2017not given separately31 May 2020none in the recordpast vendor supportnone in the record
5.6 LTS15 Mar 2016not given separately16 Mar 2019none in the recordpast vendor supportnotice
4.8 LTS15 Dec 2011not given separately31 Dec 2015none in the recordpast vendor supportaddress held, not linked

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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