Should I use v2 or V3 Uniswap?

Hey there, I'm a bit confused about which version of Uniswap to use for my cryptocurrency transactions. I've heard about both v2 and V3, but I'm not sure which one is better suited for my needs. Could you help me understand the key differences between the two versions and which one might be more suitable for me? I'm looking for a platform that offers low fees, good liquidity, and is relatively easy to use. Thanks in advance for your help!