No, it has not changed.
How do I define that phrase? Well since a preamble, which that phrase is a part of, does not confer additional powers to those granted or recognized in a statute or constitution, it is just a "nice too have" feel-good statement of little real substance.
I'll also point you here: https://individualrightsgovernmentwrongs.com/founding-fathers/the-founders-and-the-general-welfare/
Thomas Jefferson called the phrase “a mere ‘grammatical quibble’ that has countenanced the general government in a claim of universal power”. He mistakenly believed that the Founder’s had clarified their intentions and meaning, and debate over the meaning of the phrase would cease.
The Founders clearly understood the “general welfare” to mean the good of all citizens, not an open-ended mandate for Congress. The only good that applies to all citizens is freedom, and government’s proper role is the protection of that freedom. That was the meaning intended by the Founders.
Those who sought to expand government’s powers chose to ignore the explanations offered by the Founders. Corrupted by bad philosophy, they rejected the principles of the Founders and of the Constitution.