Hello,
I bought some bitcoin on Cobinhood. Can I send them now to the desktop wallet of bitcoin.org, and leave it there for 5 years or longer, without caring about it in this timeframe
For sure, but you will need to get out your coins from Cobinhood first I bought some bitcoin on Cobinhood. Can I send them now to the desktop wallet of bitcoin.org, and leave it there for 5 years or longer, without caring about it in this timeframe
To ensure your coin security, I'd be best to keep your coins in a wallet where you control your private key.
Since you are planning for a long term holding I suggest to take either Paper based wallet or Hardware wallet, your private key are now in your hands.
What happens when Litghting-Network or a fork is coming, do we have to update something?
Lightning Network are a soft fork, when a soft fork happens you only need to udpate your wallet in order to use those new features.