What is 'Segregated Witness' and what's its purpose?
How do soft forks work and what do they make possible?
What is a sidechain? Do you know what is sidechain
If you trader investor of crypto i recommend you to check this video because you will have a better understanding how these block versions works.
This computer programmer genius explaining in details how segwit, soft forks sidechains works.. great info
Check this video great information