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PyCharm 2026.2.1 adds support for AI agents to work inside Jupyter notebooks using a live runtime kernel, along with directing package installation operations to the correct Python environment. The release also introduces support for marimo notebooks, improvements to package management and type checking, and changes to bundled plugins.
JetBrains has launched a new Jupyter skill inside PyCharm that allows AI agents to work directly on a live kernel while preserving the state of data and models between cells. The company says tests showed lower costs with Claude Opus 5 during long-running tasks, while the benefit depends on the model and the nature of the task.