The third minor release of PyCharm 2021.2 contains multiple bug fixes:
We fixed a bug where PEP 585 parameterized built-in classes were not recognized when using from __future__ import annotations.
We fixed a bug in Jupyter notebooks where the connection to the Python debugger failed when using ipykernel>=6.3.0.
We fixed a bug where custom external documentation URLs for the standard entries were getting removed upon IDE restart.
We fixed a bug where PyCharm was updating indexes on every startup if IDE was closed with OS shutdown
For the full list of issues addressed in PyCharm 2021.2.3, please see the release notes.
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