One of the well-known differences between bitcoin and ether is the fact that ether does not have an explicit cap on supply, while the number of bitcoins in circulation will never exceed 21 million.EIPs are proposed changes to the Ethereum code that are reviewed by the community of users, developers and validators via a lifecycle of technical reviews, research and discussion.Upcoming Changes: The first of these is an update called the Ethereum Improvement Proposal 1559, or EIP 1559, and the second of these is the transition to proof of stake from proof of work.