ST-2026-186 · SDKs & runtimes
AWS SDK for .NET V4.1 plans its annual target-framework update for November
AWS plans an AWS SDK for .NET V4.1 target-framework update in November 2026 that adds .NET 10 and removes .NET Core 3.1 while retaining .NET Framework 4.7.2 and .NET Standard 2.0.
Previous state
AWS SDK for .NET V4.1 had not yet applied the announced 2026 annual target-framework update.
Current state
AWS plans to add .NET 10 support and remove .NET Core 3.1 from the SDK target set in a November 2026 V4.1 update, while keeping .NET Framework 4.7.2 and .NET Standard 2.0.
Affected users
Who needs to care
Applications and build pipelines that depend on AWS SDK for .NET target frameworks, particularly workloads still targeting .NET Core 3.1.
Required response
What to do
Inventory AWS SDK for .NET consumers still relying on .NET Core 3.1 and plan a supported target before the V4.1 update; validate .NET 10 adoption where relevant.
Evidence boundary
What the source does not prove
AWS states only November 2026 for the planned update and does not give an exact day in the cited announcement. This record does not invent a precise enforcement date.
Lifecycle history
Dated event sequence
- Annual target update announced
AWS described the planned V4.1 target-framework changes for November 2026.
Evidence ledger
First-party sources
- 01Amazon Web Services — Annual .NET target updates for the AWS SDK for .NET
Official AWS Developer Tools Blog · 2026-07-29
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