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Language workbench to create Domain-Specific Languages

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MPS 2026.1 Release Candidate Arrives

Vaclav Pech
Vaclav Pech

Before we finalize the 2026.1 release, we are presenting a release candidate build so you can preview the new features ahead of time. Download MPS 2026.1 Release Candidate now:

DOWNLOAD MPS 2026.1 RC 1

The release candidate brings a single, long-awaited feature: MPS is now accessible to AI coding agents via the MCP (Model Context Protocol). The feature is provided by a bundled plugin – the Projectional Agent Toolkit. Enable the embedded MCP server, point your MCP-capable agent at the MPS instance, and the toolsets and skills appear automatically.
MPS with coding agents in the Terminal window
The Projectional Agent Toolkit is an experimental feature and may be subject to API changes in the future. Read the Projectional Agent Toolkit documentation for full details.

To see what other new features were added in this release, check out the earlier updates from the EAP 1 build.

The full list of fixed issues can be found here.

Your JetBrains MPS team

EAP Release
Prev post The MPS 2026.1 Early Access Program Has Started

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The MPS 2026.1 Early Access Program Has Started

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Vaclav Pech
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Vaclav Pech
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MPS 2025.3 Release Candidate Is Ready!

As the last step on our way toward the final release, the Release Candidate for MPS 2025.3 is now available for you to download! DOWNLOAD MPS 2025.3 RC 1 To find out what features to expect in this release, check out the earlier updates from the EAP 1 and EAP 2 builds. The full list of fixed issues…

Vaclav Pech
Vaclav Pech