Florida no longer requires you attempt to flee before you can use deadly force in self-defense.
I'd say it's about time. In Texas, deadly force is justified if you are in "imminent and immediate" fear for your (or another person's) safety (as in fear of death or bodily injury), just the same as law enforcement. There is NO requirement to flee, particularly in your own home. The states that still require attempted retreat are kidding themselves, and just opening themselves up for lawsuits.