When does .NET 10 support end?

.NET 10 is supported until November 14, 2028. The last six months before that are maintenance: security fixes only.

Yes. .NET 10 is a Long Term Support release with three years of support.

What C# version does .NET 10 use?

C# 14. It is the default language version for projects that target net10.0.

10.0.12, released September 8, 2026 (as of September 26, 2026). The latest SDK is 10.0.401.

Select Page

Release date	November 11, 2025
End of support	November 14, 2028
Release type	LTS (Long Term Support, 3 years)
Status	Active
C# version	C# 14 (the default for `net10.0`)
Target framework	`net10.0`
Latest version	10.0.12, released September 8, 2026
Latest SDK	`10.0.401`; per feature band: 10.0.4xx `10.0.401`, 10.0.3xx `10.0.303`, 10.0.2xx `10.0.204`, 10.0.1xx `10.0.112`
ASP.NET Core and EF Core	ASP.NET Core 10 and EF Core 10 follow the same dates
Patches	12 patch releases after 10.0.0; 9 with security fixes (49 CVEs)

Version	Date	Security fixes	SDKs
10.0.12	2026-09-08	Yes: CVE-2026-69439, CVE-2026-71328, CVE-2026-69522, CVE-2026-69304, CVE-2026-58649, CVE-2026-69806	10.0.401, 10.0.112
10.0.11	2026-08-11	Yes: CVE-2026-62898, CVE-2026-62899, CVE-2026-62900, CVE-2026-62901, CVE-2026-62886, CVE-2026-62871, CVE-2026-70354, CVE-2026-62902, CVE-2026-62897, CVE-2026-62909	10.0.400, 10.0.303, 10.0.111
10.0.10	2026-07-14	Yes: CVE-2026-50651, CVE-2026-50526, CVE-2026-50524, CVE-2026-50646, CVE-2026-50649, CVE-2026-50650, CVE-2026-56158, CVE-2026-47302, CVE-2026-50648, CVE-2026-50527, CVE-2026-47304, CVE-2026-50525, CVE-2026-57108, CVE-2026-50528, CVE-2026-50659, CVE-2026-47300, CVE-2026-47303	10.0.302, 10.0.110
10.0.9	2026-06-09	Yes: CVE-2026-45591, CVE-2026-45491, CVE-2026-45490	10.0.301, 10.0.109
10.0.8	2026-05-12	Yes: CVE-2026-32177, CVE-2026-35433, CVE-2026-32175, CVE-2026-42899	10.0.300, 10.0.204, 10.0.108
10.0.7	2026-04-21	Yes: CVE-2026-40372	10.0.203, 10.0.107
10.0.6	2026-04-14	Yes: CVE-2026-26171, CVE-2026-32203, CVE-2026-33116, CVE-2026-32178	10.0.202, 10.0.106
10.0.5	2026-03-12	No	10.0.201, 10.0.105
10.0.4	2026-03-10	Yes: CVE-2026-26130, CVE-2026-26127, CVE-2026-26131	10.0.200, 10.0.104
10.0.3	2026-02-10	Yes: CVE-2026-21218	10.0.103
10.0.2	2026-01-13	No	10.0.102
10.0.1	2025-12-09	No	10.0.101
10.0.0	2025-11-11	No	10.0.100