Continuously updated
IT end-of-support calendar 2026–2028
By Nico De Muynck · Last updated July 18, 2026 · Always confirm exact dates on the vendor's lifecycle page before acting
🔴 Already unsupported — act now
| Windows 10 (22H2) | Ended Oct 14, 2025 — consumer ESU bridge runs to Oct 13, 2026 |
| Exchange Server 2016 & 2019 | Extended support ended Oct 14, 2025 |
| SQL Server 2016 | Extended support ended Jul 14, 2026 — ESU (critical fixes only) available |
2026 — the October cliff
October 2026 is unusually brutal: several Microsoft lifelines end on the same Patch Tuesday.
| Date | What ends |
|---|---|
| Aug 31, 2026 | Debian 11 “bullseye” LTS security support |
| Oct 13, 2026 | Windows Server 2012 / 2012 R2 — final ESU year ends. No year 4. After this date these servers never receive another patch. Read the full advisory → |
| Oct 13, 2026 | Windows 10 consumer ESU ends (commercial ESU can extend to Oct 2028) |
| Oct 13, 2026 | Windows 11 24H2 end of servicing — Home & Pro editions |
| Oct 13, 2026 | Windows 10 2016 LTSB / IoT Enterprise LTSB 2016 |
| Oct 13, 2026 | Office 2021 (mainstream support) |
2027
| Date | What ends |
|---|---|
| Jan 12, 2027 | Windows Server 2016 — extended support ends. The next big server migration wave; start planning now |
| Q2 2027 | Ubuntu 22.04 LTS standard support ends (ESM available to 2032) |
| Oct 12, 2027 | Windows 11 24H2 end of servicing — Enterprise & Education |
| Oct 12, 2027 | SQL Server 2017 extended support ends |
2028
| Date | What ends |
|---|---|
| Oct 10, 2028 | Windows 10 commercial ESU final year ends — the true end of Windows 10 |
Hardware deadlines (switches, firewalls, servers) are per-model rather than per-calendar — see the vendor EOL guides for how to look up yours.
How to use this calendar
Scan it quarterly, match entries against your estate, and put every hit in a tracker with a warning window long enough to budget properly — 6 to 12 months for servers. If a deadline above applies to even one production system you own, the cheapest day to act is today. (New to the terminology? EOL vs EOS vs EOSL explained. Wondering what actually goes wrong? The five real risks.)
Your own calendar, watched automatically
Put your assets in EOL Tracking and every deadline on this page that touches your fleet becomes an early warning — by email, Slack or Teams.
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