So here’s the thing - IPFS is permanent web. It doesn’t necessarily limit the scope of the data to remain immutable as a stone.
A new line into the document creates a new IPFS hash. (At this point I request you to check the solution architecture for my problem here: Ethereum/Solidity Smart Contract CI Toolchain on IPFS! (WIP))
Atleast this is how I saw its working.
The reason behind choosing IPFS is because we are essentially looking for a distributed, open network.