Ethereum’s next upgrade, Constantinople, has been delayed until next year. Ethereum developers say Constantinople may be subject to delays following Saturday’s test network release. Constantinople, ethereum’s next system-wide upgrade, also called a hard fork, did not activate on the Ropsten testnet as planned. Open-source coders backing the ethereum project now say its next system-wide upgrade, Constantinople, is on track for November release. By the end of the year, an initial coin offering will be launched on bitcoin. thanks to sidechains tech.