New Bug-Fix Releases Are Available for MPS Versions 2026.1.1, 2025.3.2, 2025.2.4, and 2025.1.4

We’ve released updates for multiple major MPS versions that fix several issues.

DOWNLOAD MPS 2026.1.1

Check out all the updates in each particular version below:

MPS 2026.1.1

The Projectional Agent Toolkit receives several practical improvements that allow agents to:

See and invoke intentions and quick-fixes on individual nodes.

Manipulate NodeAttributes, PropertyAttributes, and others.

Create copies of nodes.

Obtain richer editor context, including caret and selection information.

Receive clear diagnostics when modal dialogs block tool execution.

The release also expands agent guidance for editor tests, YouTrack issue creation, and reliable test execution. Together, these updates make agent-assisted projectional development more capable, predictable, and easier to operate.

Note: Remember to ask your agent to update the MPS skills in your project to benefit most from the changes.

Download MPS 2026.1.1 here.

See the full list of fixed issues here.

MPS 2025.3.2

Download MPS 2025.3.2 here.

See the full list of fixed issues here.

MPS 2025.2.4

Download MPS 2025.2.4 here.

See the full list of fixed issues here.

MPS 2025.1.4

Download MPS 2025.1.4 here.

See the full list of fixed issues here.

Your JetBrains MPS team