---
title: "MPS"
description: "2 posts about MPS, summarised, each linking to the original."
---

# MPS
> 2 posts about MPS, summarised, each linking to the original.

## Articles

### [MPS 2026.2 Release Candidate Available](https://yomu.fyi/post/mps-2026-2-release-candidate-available.md)
- Company: [Jetbrains](https://yomu.fyi/company/jetbrains.md)
- Author: Vaclav Pech
- Published: Oct 15, 2026
- Type: Announcement

JetBrains has released the MPS 2026.2 Release Candidate, a language workbench for creating domain-specific languages, with several key improvements over the previous EAP1 build. The RC adds Linux ARM64 support with a bundled JetBrains Java Runtime and the ability to build standalone MPS-based applications for that architecture. Build Language now supports importing files from TAR archives, preserving symbolic links and file permissions, which is useful for packaging platform-specific plugins and native libraries. The Projectional Agent Toolkit receives a major performance boost with token usage reductions exceeding 50% in tests using Claude Code, plus new MCP tools for typesystem debugging, intentions, and quick-fixes. Archive packaging preserves symbolic links and uses .tar.gz for macOS to avoid duplicate native libraries, while the Import dialog now respects user selections and the Diff dialog has visual improvements.


### [The MPS 2026.2 Early Access Program Has Started](https://yomu.fyi/post/the-mps-2026-2-early-access-program-has-started.md)
- Company: [Jetbrains](https://yomu.fyi/company/jetbrains.md)
- Author: Vaclav Pech
- Published: Sep 2, 2026
- Type: Announcement

MPS 2026.2 EAP1 introduces improvements to editor test reporting, usage-result grouping, node selection, and startup configuration, alongside bug fixes. Editor tests can now use node-matching rules or per-node markers to ignore irrelevant containment roles, properties, references, or other fixture differences, while failures identify the responsible node and cell with presentation, concept name, and node ID. Find Usages can group results by virtual package, including one tree level per segment of dotted names, and this option is enabled by default. Select Up now treats lists of sibling nodes as an intermediate editing unit, supporting more predictable repeated selection and group copy-paste. Build tooling separates the IntelliJ Platform-provided boot classpath from MPS-specific extensions, exposes additional JVM arguments, and applies shared and operating-system-specific --add-opens options more precisely, reducing launcher maintenance and stale configuration risks.