Not only is this not a good look or experience for your customers it hurts you sites conversion rate.
Too many sites are built and left to stand the test of time. You wouldn’t have a car for 5 years and never service it or top it up with fuel.
All a site needs is a little bit of care, review it every few weeks or months, make some tweaks and keep on top of how your business is changing and try to reflect it on the site.
So when the new technology comes around youre better placed to adopt it quickly and keep your users experience at the level it should be.
Talk to the team here if you need helping keeping on top of your site.