If we needed proof that icebreakers can be long lived vessels, there is news from MarineLink that Sweden is modernizing two forty year old icebreakers.
Chuck Hill's CG Blog
If we needed proof that icebreakers can be long lived vessels, there is news from MarineLink that Sweden is modernizing two forty year old icebreakers.
Chuck Hill's CG Blog 
The Swedish government has reserved funds for the construction of two new icebreakers with an option for third:
https://www.sjofartsverket.se/sv/farledsprojekt/malmporten/nyheter/nya-isbrytare-sakrar-norrlandsinvesteringar/
Unfortunately the news is only available in Swedish, but Google Translate provides a pretty good English translation:
https://www-sjofartsverket-se.translate.goog/sv/farledsprojekt/malmporten/nyheter/nya-isbrytare-sakrar-norrlandsinvesteringar/?_x_tr_sl=sv&_x_tr_tl=en