@BigDogBo If you're interested in the specific upgrades that come with the new Mastodon version the team from Mastodon have written it up here - https://blog.joinmastodon.org/2026/06/mastodon-4.6/
I'd also recommend checking out @FediTips if you haven't already who have a great site here - https://fedi.tips/ - On some tips to getting the best out of Mastodon and getting used to some of the changes from other social media sites!