JetBrains Unveils Agentic Core: The Future of Autonomous IDEs

As of June 2026, JetBrains has officially integrated the Agentic Core across its IDE suite. Powered by the Mellum-3 LLM and the new Agent Client Protocol (ACP), developers can now deploy autonomous agents for complex refactoring, multi-file architectural changes, and real-time security auditing. This shift moves beyond simple code completion to goal-oriented agentic workflows that understand entire repository contexts natively.