Please provide a detailed description of what you mean by "corruption".
In software development as a whole (not at all specific to Arduino), it is common that updating a dependency to a version with breaking changes will impact a project. This is why you should always carefully review the changelog for a new release of a dependency before updating. If you just cursorily update your dependencies, then it should be no surprise that your projects stop working. But this can not be accurately described as "corruption".
- Press the Ctrl+Shift+P keyboard shortcut (Command+Shift+P for macOS users) to open the "Command Palette".
A menu will appear on the editor toolbar:
- Select the "Preferences: Open Settings (UI)" command from the menu.
ⓘ You can scroll down through the list of commands to find it or type the name in the field.
A "Preferences" tab will open in the Arduino IDE main panel. - Type
arduino.checkForUpdatesin the "Search Settings" field of the "Preferences" tab. - Uncheck the box under the "Arduino: Check For Updates" setting.
- Close the Preferences tab by clicking its X icon.
If you disable the automatic update check, make sure to periodically do a manual check for newer versions of Arduino IDE and your installed boards platforms and libraries. You can check for new versions of Arduino IDE by selecting Help > Check for Arduino IDE Updates from the Arduino IDE menus. You can check for new versions of boards platforms and libraries by selecting "Updatable" from the "Type" menu in the Boards Manager and Library Manager views.