Microsoft Exchange Server end of life: end of support by version
Microsoft · Collaboration & Communication
For Microsoft 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 Microsoft 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 Microsoft 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 | 317 days ago | End of Life |
| 2016 | 15.1.2507.61 | 317 days ago | End of Life |
| 2013 | 15.0.1497.48 | 1234 days ago | End of Life |
| 2010 | 14.3.513.0 | 2144 days ago | End of Life |
| 2007 | 8.3.517.0 | 3425 days ago | End of Life |
| 2003 | 6.5.7654.4 | 4524 days ago | End of Life |
| 2000 | 6.0.6620.7 | 5707 days ago | End of Life |
| 5.5 | 5.5.2653 | 7534 days ago | End of Life |
| 5.0 | 5.0.1460 | 7534 days ago | End of Life |
| 4.0 | 4.0.996 | no date on record | End of Life |
Which Microsoft 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.
- Microsoft Exchange Server 201915.2.1544.36
- Microsoft Exchange Server 201615.1.2507.61
- Microsoft Exchange Server 201315.0.1497.48
- Microsoft Exchange Server 201014.3.513.0
- Microsoft Exchange Server 20078.3.517.0
- Microsoft Exchange Server 20036.5.7654.4
- Microsoft Exchange Server 20006.0.6620.7
- Microsoft Exchange Server 5.55.5.2653
- Microsoft Exchange Server 5.05.0.1460
- Microsoft Exchange Server 4.04.0.996no date on record
Where does the EOL data for Microsoft Exchange Server come from?
From the open endoflife.date project, which collects vendors' official support commitments. patchletter reconciles the cycles daily; the Microsoft 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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