Substrate allows blockchains to be seamlessly upgraded without hardforks. We have already witnessed forkless upgrades in Polkadot and Kusama. The same on-chain governance and upgrade mechanisms are available to all Substrate-based blockchains.
This approach to blockchain technology is perfect for Subsocial. We believe that it isn’t possible to know everything upfront. Functionality and parameters the platform will have to be changed all the way as the community finds bugs or it becomes necessary to make improvements.