As noted in the announcement of LyX 2.3.6, there is now an updated installer available for Windows, including a 64 bit version. In order to update to 2.3.6 on Windows using the new installer, you should uninstall the previous 2.3 releases using the uninstaller or from within the control panel/Windows settings beforehand. Make sure to not install LyX 2.3.6 into an existing LyX directory by choosing an empty folder for the installation.
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