Exchange Server end of life: end of support by version
Microsoft · Servers & Databases
For Exchange Server by Microsoft, patchletter knows 11 support cycles. 10 of them have already ended and receive no more security updates. The current version of Exchange Server is 15.2.2562.49. The cycles come from the open endoflife.date project, last reconciled on 30/09/2026.
When does support end for which Exchange Server version?
A cycle is a maintained version line. Where a date is given, support ends on that day — after it the vendor ships no more security updates for that line.
| Cycle | Latest version | End of support | Status |
|---|---|---|---|
| subscription | 15.2.2562.49 | no date on record | supported |
| 2019 | 15.2.1544.36 | 362 days ago | End of Life |
| 2016 | 15.1.2507.61 | 362 days ago | End of Life |
| 2013 | 15.0.1497.48 | 1279 days ago | End of Life |
| 2010 | 14.3.513.0 | 2189 days ago | End of Life |
| 2007 | 8.3.517.0 | 3470 days ago | End of Life |
| 2003 | 6.5.7654.4 | 4569 days ago | End of Life |
| 2000 | 6.0.6620.7 | 5752 days ago | End of Life |
| 5.5 | 5.5.2653 | 7579 days ago | End of Life |
| 5.0 | 5.0.1460 | 7579 days ago | End of Life |
| 4.0 | 4.0.996 | no date on record | End of Life |
Which Exchange Server versions no longer receive security updates?
10 of 11 cycles have ended. If you run one of those lines, the vendor ships you no more patches — not even for critical flaws.
- Exchange Server 201915.2.1544.36
- Exchange Server 201615.1.2507.61
- Exchange Server 201315.0.1497.48
- Exchange Server 201014.3.513.0
- Exchange Server 20078.3.517.0
- Exchange Server 20036.5.7654.4
- Exchange Server 20006.0.6620.7
- Exchange Server 5.55.5.2653
- Exchange Server 5.05.0.1460
- Exchange Server 4.04.0.996no date on record
Where does the EOL data for Exchange Server come from?
From the open endoflife.date project, which collects vendors' official support commitments. patchletter reconciles the cycles daily; the Exchange Server data is as of 30/09/2026. In case of doubt the vendor's own lifecycle page applies — patchletter deliberately stores no vendor full texts.
New Exchange Server versions by email
Tick the product and patchletter reports new releases by email. The update email costs nothing, and one click stops it again. The warning 90, 30 and 7 days before support ends is part of patchletter Pro.