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 15.2.2562.49. The cycles come from the open endoflife.date project, last reconciled on 30/09/2026.
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 | 15.2.2562.49 | no date on record | supported |
| 2019 | 15.2.1544.36 | 361 days ago | End of Life |
| 2016 | 15.1.2507.61 | 361 days ago | End of Life |
| 2013 | 15.0.1497.48 | 1278 days ago | End of Life |
| 2010 | 14.3.513.0 | 2188 days ago | End of Life |
| 2007 | 8.3.517.0 | 3469 days ago | End of Life |
| 2003 | 6.5.7654.4 | 4568 days ago | End of Life |
| 2000 | 6.0.6620.7 | 5751 days ago | End of Life |
| 5.5 | 5.5.2653 | 7578 days ago | End of Life |
| 5.0 | 5.0.1460 | 7578 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 30/09/2026. In case of doubt the vendor's own lifecycle page applies — patchletter deliberately stores no vendor full texts.
New Microsoft 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.