The new TAGS_FIRE_SCENES_ONLY_WITH_EXTERNAL_FOOTSWITCH parameter (in the config/ini file) will influence the use of tags l4ldownfiresnextsc and l4lupfiresnextsc and the use of an external footswitch. The purpose of this parameter is to enable you to use the l4ldownfiresnextsc and l4lupfiresnextsc tags (which automatically launch the next or previous scene when you change scene) only when using an external footswitch. Using the Loop4live's up and down buttons, you can navigate through scenes without automatic scene launch. In this way, you can have scene auto-launch with the external footswitch and still navigate scenes with Loop4Live without scene auto-launch. See section 10A.4. THE TAGS for an overview of how to use tags.
You need to upgrade the Loop4Live Remote scripts on your system to use this new feature.