Yes, destroying them should reduce the cost + give you resources back.
In a future update, you will be able to plant and farm berry bushes, but for now the best thing to do is either use Druid Scrolls on the grass biome, gamble your way with Slot Machines or build Markets and try to buy a bunch that way!
New Game Modes(Single Island Challenge in which you need to get all Tools to win and Speedrun Mode in which you need to get all Feats to win, with more to come in future updates!)
New Carpentry Station building with 10 new decorative items!
New Weather system with new visual effects. In the near future this will also contain gameplay modifiers! (There will soon be an option to turn this off for people having issues with old PCs)
Improved Sunrise/Sunsets
A TON of new ingame options!
Some new secret options...
Improves crash-proof saving. Losing savefiles to random crashes or computer shutdowns should be much rarer now!
Removes buffs from shrines if they cannot be used / assist the play...
To clarify, it actually increases the "efficiency" stat for every building nearby. So, for example, Fish Traps will catch things more often, Mining Rods shoot faster, Furnaces craft faster, Shrines recharge faster, etc!
It works on a timer, so every other minute or so it restores some HP and Energy. I don't actually remember exactly what the timer length was though, but it makes a small sound and the screen flashes slightly when it triggers!