Outdated Answers: accepted answer is now unpinned on Stack Overflow
meta.stackoverflow.com
meta.stackoverflow.com
I hope the users will still at least be curious about the accepted answer in such cases, popularity doesn't always mean it is better. But overall, I think this change is better.
E.g.
Q: "How do I do X in JS?" in 2010
A1 (100 votes, accepted): "Use jQuery function jX()" (2011)
A2 (300 votes): "Since 2015, the standard function jX2() is supported in all major browsers. [link to caniuse.com]" (2016)