OS Security Update Support Tracker

End-of-support dates for Windows, macOS, iOS, and Android

Last rebuilt: June 2026 · Sourced from Microsoft, Apple, and endoflife.date  ·  How to check your current OS version →  ·  Browser versions →

Windows 11

Home / Pro / Education
Version Released Security Updates End Status Updates Left
27H2 May 2026 Dec 14 2027 Active ~14 months
26H2 Oct 2025 Nov 11 2027 Active ~14 months
26H1 Feb 10 2026 Mar 14 2028 Active ~21 months
25H2 Sep 30 2025 Oct 12 2027 Active ~16 months
24H2 Oct 1 2024 Oct 13 2026 Warning ~4 months
Windows 10 22H2 — Final release Oct 14 2025 (Windows 10 EOL)
Source: Microsoft Lifecycle · Feature versions receive ~22–24 months of security support under the Modern Lifecycle Policy.

macOS

All major versions
Version (Codename) Released Security Updates Ended Status Updates Left
26 (Tahoe) Sep 15 2025 Late 2026 — 2027 Active ~1–2 years
15 (Sequoia) Sep 16 2024 Late 2026 — 2027 Active ~1+ year
14 (Sonoma) Sep 26 2023 Late 2026 Warning ~6 months
13 (Ventura) Oct 24 2022 Sep 2025 End of Life
12 (Monterey) Oct 25 2021 Sep 2024 End of Life
11 (Big Sur) Nov 12 2020 Feb 2026 End of Life
Source: endoflife.date/macos + Apple Security Releases · Apple typically carries the latest 3 major releases with active security patching.

iOS

iPhone / iPad OS (major versions)
Version Released Security Support End Status Updates Left
26 Sep 15 2025 Late 2026 – 2027 Active ~1–2 years
19 Sep 2023 Unsupported End of Life
18 (feature ended) Sep 16 2024 Still receiving security patches (as of Jun 2026) Security only Uncertain
17 (feature ended) Sep 18 2023 Nov 19 2024 End of Life
16 (feature ended) Sep 12 2022 Still receiving security patches (as of Jun 2026) Security only Uncertain
15 (feature ended) Sep 20 2021 Still receiving security patches (as of Jun 2026) Security only Uncertain
12 Sep 17 2018 Jan 26 2026 End of Life
Source: endoflife.date/ios + Apple Security Releases · Apple occasionally backports critical fixes to older iOS versions — security support ≠ feature support.

Android

Google Pixel / AOSP (major versions)
Version (Codename) Released Security Support End Status Updates Left
17 "Cinnamon Bun" Jun 16 2026 Active Active Ongoing
16 "Baklava" Jun 10 2025 Active Active Ongoing
15 "Vanilla Ice Cream" Sep 3 2024 Active Active Ongoing
14 "Upside Down Cake" Oct 4 2023 Active (EOL pending) Warning Ongoing
13 "Tiramisu" Aug 15 2022 Mar 2 2026 End of Life
12 / 12.1 "Snow Cone" Oct 2021 Mar 3 2025 End of Life
Source: endoflife.date/android + Android Security Bulletins · Android has no universal vendor EOL policy — actual support depends on manufacturer (Pixel: ~7 years; OEMs vary widely).