Sure its changed somewhat over time. i.e. Most of us don't dance naked anymore.
Even the Catholic church finally stopped executing people for celebrating it when the Christian calender finally became as accurate as the Pagan one. This pagan festival has remained synchronized with the Birth of Jesus Christian festival ever sinnce... more or less... given 12 days of Christmas.
Christians aren't the only entities to contribute to Yuletide. Shopping for example is a recent contribution by corporations.
In this season of peace, goodwill and charity, I hope everyone of all races, religions, creeds and creations celebrate the lenghtening of day even if that means embracing an established tradition or creating a new one...