A very well explained post about the Blockchain Forking. You are right that the forking could be done to add new features in a blockchain or improve the previously existing features of a blockchain.

Validator nodes decide either to unanimously adopt the new upgrades.

Well said, the determination of the hard fork and the soft fork is based on the agreement on the proposed changings ,between the developers and the nodes of the blockchain.

Thank you very much for sharing your beautiful post with us and I wish you a very good luck for the contest. 🤞