New Bug-Fix Releases Are Available for MPS Versions 2026.1.1, 2025.3.2, 2025.2.4, and 2025.1.4
JetBrains released maintenance updates for four MPS versions including 2026.1.1, 2025.3.2, 2025.2.4, and 2025.1.4. The 2026.1.1 update expands the Projectional Agent Toolkit to support node-level intention invocation and direct manipulation of NodeAttributes and PropertyAttributes.
Verified State Diff
Impact & Verification Analysis
Language engineers, MPS plugin developers, and teams utilizing the Projectional Agent Toolkit for automated model transformations.
These changes significantly improve the automation capabilities of MPS, allowing for more sophisticated AI-driven or script-driven model manipulation without manual intervention.
Full Fact Overview
The update focuses on the Projectional Agent Toolkit within the MPS 2026.1.1 release, specifically targeting the programmatic interaction layer. By enabling agents to invoke intentions and quick-fixes on individual nodes, JetBrains is lowering the barrier for automated refactoring and code generation tasks. Furthermore, the addition of API-level access to NodeAttributes and PropertyAttributes allows for more granular control over the abstract syntax tree (AST) metadata, which is critical for complex language engineering and model-driven development workflows.