thonny/thonny v3.3.11 on GitHub

This is a bug-fix release.

Installation

Windows: download and execute thonny-3.3.11.exe. You may receive a warning dialog from Defender until it gains more reputation. Just click "More info" and "Run anyway".
macOS: download and open thonny-3.3.11.pkg and follow the instructions. NB! While using Thonny you may be asked for permission to use Desktop or Documents. Make sure you grant the permission, othewise Thonny can't work in that folder!
macOS Big Sur: thonny-3.3.11.pkg may work, but if you are having problems, then try thonny-3.3.10-alt.pkg from the previous release. This one has universal build of Python 3.9 (instead of 3.7) and newer Tk (8.6.11 instead of 8.6.8).
Linux on 32-bit and 64-bit x84: download thonny-3.3.11.bash and execute it with Bash (bash thonny-3.3.11.bash).
All platforms: create a virtual environment, install with pip install thonny and run with thonny.

thonny-xxl variants have more packages preinstalled.

Fix MicroPython management errors when user code shadows built-in names, #1856
Fix package manager getting frozen when installing packages, #1871
Fix problem of MicroPython package manager taking module names for distribution names, #1833
Fix ugly error in ESP flasher dialog when esptool is not found, #1837
Fix Tkinter error when using venv created from bundled Python, #1835
Use 0..6 for weekday when synchronizing RTC via machine, #1868
Make esptool auto-detect chip type, #1838
Fix Unix MicroPython time validation (misdiagnosed time offset)
Update dependencies in Thonny+Python bundles
Update Spanish, Polish, Chinese (TW) translations