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 15.2.2562.46. The cycles come from the open endoflife.date project, last reconciled on 26/08/2026.
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 | 15.2.2562.46 | no date on record | supported |
| 2019 | 15.2.1544.36 | 316 days ago | End of Life |
| 2016 | 15.1.2507.61 | 316 days ago | End of Life |
| 2013 | 15.0.1497.48 | 1233 days ago | End of Life |
| 2010 | 14.3.513.0 | 2143 days ago | End of Life |
| 2007 | 8.3.517.0 | 3424 days ago | End of Life |
| 2003 | 6.5.7654.4 | 4523 days ago | End of Life |
| 2000 | 6.0.6620.7 | 5706 days ago | End of Life |
| 5.5 | 5.5.2653 | 7533 days ago | End of Life |
| 5.0 | 5.0.1460 | 7533 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 26/08/2026. In case of doubt the vendor's own lifecycle page applies — patchletter deliberately stores no vendor full texts.
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