MPS 2026.1 Has Been Released
Discover new features and developer tools.
1Key Features of MPS 2026.1
MPS 2026.1 has been updated with IntelliJ Platform 2026.1, JDK 25, and Kotlin 2.3. This release makes migrations more reproducible and includes a significant quality update for Java stubs. Additionally, Build Language now supports transitive dependencies.
2Projectional Agent Toolkit
MPS 2026.1 comes with the Projectional Agent Toolkit plugin, enabling AI coding agents to read and write MPS models. This opens up new development concepts for MPS developers and language authors.
3AI Agents Interacting with MPS
AI agents can now directly manipulate MPS models. They can navigate modules and models, read and edit nodes, and resolve references. This introduces a new collaboration area for developers.
4Inspecting Languages and Concepts
AI agents can inspect concept hierarchies, properties, and references. They can also implement structure concepts from JSON blueprints. This provides significant convenience for language designers.
5Run Configurations
AI agents can list and execute project run configurations. This ensures end-to-end validation of changes and speeds up the development process.
6Natural Language Support
MPS 2026.1 uses natural language support provided by Grazie. This allows checking whether string values are correctly capitalized according to the rules of a specific natural language.
7Future Development Potential
MPS 2026.1 shapes future software development practices by integrating AI agents into language and DSL development processes. This presents new opportunities and challenges for developers.
Original article: The JetBrains Blog — MPS 2026.1 Sürümü Yayınlandı