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JetBrains confirmed that attackers exploited the critical vulnerability CVE-2026-63077 to gain unauthorized access to the Cadence environment, exposing user data, credentials, and files associated with cloud execution. The company is asking users to revoke all secrets and credentials that may have been used with the service and review systems connected to it.
The PyCharm 2026.2 release line includes 263 fixes and improvements, focusing on type inference accuracy, SQLAlchemy 2.0 support, reducing false positives, and improving completion and refactoring.
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.
The Agent Environment Coordinator skill enables AI agents to identify the interpreter and Python environment associated with a project before executing commands. According to a JetBrains test involving six models and 28 tasks, the average success rate rose from 68% without access to the project environment to 98% when the skill was enabled.
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.