JetBrains announces MPS 2026.1 Release Candidate
The release candidate introduces AI coding agent accessibility via MCP protocol, enabled by the bundled Projectional Agent Toolkit.
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In short: JetBrains expanded its AI and agentic development ecosystem with the launch of the Junie agent and the open-sourcing of the Mellum2 model.
The release candidate introduces AI coding agent accessibility via MCP protocol, enabled by the bundled Projectional Agent Toolkit.
The IntelliJ Platform now delays disk writes after saving, requiring plugins to use ManagingFS.flushPendingUpdates before external file access to avoid stale reads.
The update includes the latest Oracle critical patch update for Java 21 and fixes issue IDEA-389015, improving reliability and security.
The release includes stable context parameters, explicit backing fields, support for Java 26, Swift packages, and more.
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