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ASP.NET Core

DEVOPS
Velocity5.0

Cross-platform framework for building modern cloud-based web applications

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ASP.NET Core ships MCP 2.1.0 in a patch release and advances .NET 11 through RC1.

dotnetserver-frameworklts-maintenancemcpopenapi
◆Current state
ASP.NET Core is running a high-cadence patch cycle across three active branches (8.0, 9.0, 10.0) while the .NET 11 RC1 progresses in parallel. The September 2026 wave dropped coordinated patch releases for all three LTS branches on the same day. Notably, 10.0.12 upgraded the Model Context Protocol library to 2.1.0 in a regular patch cycle — the team is treating MCP spec currency as a maintenance obligation, not a roadmap item.
◆Where it's heading
ASP.NET Core is in steady maintenance mode for its LTS branches while .NET 11 accumulates RC-stage stabilization. The recurring MCP version bumps in patch releases suggest the team is watching the protocol spec closely and intends to ship agentic tooling support without waiting for a major version.
◆Prediction
.NET 11 should reach RC2 within weeks and GA before end of 2026. Expect continued MCP version tracking in 10.x and 11.x patch cycles.

◆Recent moves

  1. 7d ago

    .NET 10.0.12

    10.0.12 bumps the Model Context Protocol library to 2.1.0 alongside a thread-pool starvation fix in KeyRingProvider. Bumping MCP in a patch release confirms the team treats protocol currency as a routine maintenance item.

    View source ↗
  2. 7d ago

    .NET 9.0.20

    9.0.20 is a coordinated patch: dependency bumps, a FormsInputDate regression fix, and Debian packaging corrections. No user-visible behavior changes.

    View source ↗
  3. 7d ago

    .NET 8.0.31

    8.0.31 is the LTS companion patch: submodule bumps, CI pipeline updates, and OpenAPI version corrections. No user-visible changes.

    View source ↗
  4. 22d ago

    .NET 11 RC1 automated dependency sync

    An automated source-sync commit pulling over 70 updated dependency packages into the .NET 11 RC1 branch. Build infrastructure work with no new user-facing features.

    View source ↗
  5. 1mo ago

    .NET 9.0.19

    9.0.19 advances CI tooling to Node.js 24.x, switches to Windows 2022 CI images, and addresses test flakiness. All infrastructure-level work with no user-visible impact.

    View source ↗
  6. 1mo ago

    .NET 8.0.30

    8.0.30 mirrors the 9.0.19 infrastructure upgrades for the 8.0 LTS branch, plus a ws package security patch. Standard maintenance with no API or behavior changes.

    View source ↗