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Semantic Kernel

AI-ASSISTANTS
Velocity3.8

Microsoft SDK for integrating large language models into apps with plugins and planning.

learn.microsoft.com/en-us/semantic-kernel ↗

Semantic Kernel ships steady .NET/Python point releases while pointing users to its successor framework.

ai-orchestrationdotnetpythonsecurity-hardeningopenapimigration
◆Current state
Microsoft's Semantic Kernel releases as parallel per-language package trains (.NET and Python), each a mix of dependency bumps, security hardening, and occasional real capability work. Recent notes add HTTP-redirect disabling and file-path validation hardening on .NET, OpenAPI parsing and server-URL validation changes, and Assistant-agent function-choice support on Python. Several release notes carry a documented callout naming the Microsoft Agent Framework as SK's successor.
◆Where it's heading
The engineering signal is maintenance-plus: dependency currency, security tightening, and API refinement rather than large new capability surfaces. The more consequential thread is positional — SK is steering developers toward the Microsoft Agent Framework, which frames this train as stabilization of an established codebase rather than expansion.
◆Prediction
Expect continued incremental point releases focused on security, dependency updates, and OpenAPI/agent API polish, alongside more explicit migration signposting toward the Agent Framework.

◆Recent moves

  1. 2d ago

    .NET 1.78.0: HTTP-redirect and file-path hardening

    The .NET 1.78.0 release disables automatic HTTP redirects in the HttpPlugin and WebFileDownloadPlugin default clients, hardens file-path validation in core/document/web plugins, and bumps a vulnerable dependency. Security-focused hardening on the plugin surface.

    View source ↗
  2. 2d ago

    Python 1.44.0: dependency bumps

    Python 1.44.0 is a dependency-bump release (tornado, pyjwt, starlette, pymongo, pyarrow and others via dependabot) with no user-facing capability change.

    View source ↗
  3. 22d ago

    Python 1.43.1: assistant function-choice support + OpenAPI path fix

    Python 1.43.1 adds function_choice_behavior support to Azure AI and OpenAI Assistant agents and tightens OpenAPI path handling by rejecting encoded dot-segment paths. A real agent-capability plus a security fix.

    View source ↗
  4. 1mo ago

    Python 1.43.0: breaking OpenAPI parsing change

    Python 1.43.0 improves function-call invocation parameter consistency and lands a breaking change to OpenAPI document parsing options. Incremental API refinement with a compatibility note.

    View source ↗
  5. 1mo ago

    .NET 1.77.0: default-on OpenAPI URL validation

    .NET 1.77.0 turns on server-URL validation by default for OpenAPI plugins, adds Semantic-Kernel-to-Agent-Framework migration samples, and pins a dependency to fix an advisory. Security-and-migration oriented.

    View source ↗
  6. 1mo ago

    Python 1.42.0: dependency bumps, Agent Framework successor note

    Python 1.42.0 is largely dependency bumps plus README callouts naming the Microsoft Agent Framework as SK's successor. Housekeeping with a positioning note, no functional change.

    View source ↗