It is not important to keep your skill sets up to date, if by "up to date" you mean "having used everything that got a fair amount of press for a couple of months". You don't have time for that. Nobody does.
So don't chase press releases and puff articles. Chase real world results that fix your problems. If framework X fixes problems Y and Z, and you don't have problem Y or Z, then skip framework X. It's a waste of your time.
I'd say that once every 5 to 10 years, there's something worth moving on to even if it doesn't fix any of your current problems. The rest of the time, skip it unless you know why not.
Comments
It is not important to keep your skill sets up to date, if by "up to date" you mean "having used everything that got a fair amount of press for a couple of months". You don't have time for that. Nobody does.
So don't chase press releases and puff articles. Chase real world results that fix your problems. If framework X fixes problems Y and Z, and you don't have problem Y or Z, then skip framework X. It's a waste of your time.
I'd say that once every 5 to 10 years, there's something worth moving on to even if it doesn't fix any of your current problems. The rest of the time, skip it unless you know why not.