Security patch: Please update to 1.4.0.3

I do not understand exactly what this means. Would you please explain?
Do i have to reset the TW Breakpoints first? If doing so i have a new “Base” plus the “sm”. Do i need to do something in the Cwicly Settings with the new “Exchange Breakpoint” Feature? Or just set the “sm” to “base” in the Breakpoint settings like show in the Screenshot?