The Ethereum network will undergo a scheduled upgrade in block number 9,200,000which is expected to occur Wednesday, January 1, 2020. The exact date is subject to change due to variable times and time zones.
Please upgrade your node before Wednesday, December 30, 2019 to account for variable block times.
ethernodes.org has kindly provided the Istanbul node statistics and a countdown timer located at https://ethernodes.org/muir_glacier. etherscan.io has provided a countdown timer located at https://etherscan.io/block/countdown/9200000. You can monitor the network update in real time in http://forkmon.ethdevops.io/ (will be updated shortly before the fork).
What is Muir Glacier?
Muir Glacier is the name given to this network upgrade. Previous network updates have been called by other names, such as Istanbul, constantinopleY spurious dragon.
As an Ethereum user or Ethereum holder, is there anything I need to do?
If you use an exchange (like Coinbase, Kraken, or Binance), a web wallet service (like Metamask, MyCrypto, or MyEtherWallet), a mobile wallet service (like Coinbase Wallet, Status.im, or Trust Wallet), or a hardware wallet (such as Ledger, Trezor, or KeepKey), you don’t need to do anything unless your exchange or wallet service tells you to take further steps.
As a miner or node operator, what should I do?
Download the latest version of your Ethereum client:
NOTE: Harmony (ethereumJ) is now a deprecated client and will not be supported in Istanbul. Besu is a mainnet compatible Ethereum client written in Java.
Where can I get more information about this update?
He Ethereum Cat Herders We have put together a blog post that describes why we are updating the network and what changes will be made in the update. You can find that blog post here.
Thanks!
A big thank you to the Ethereum community and all Ethereum developers across all clients and platforms who came together to provide feedback, ideas, and contributions.
DISCLAIMER: It is an emerging and evolving highly technical space. If you choose to implement the recommendations in this post and continue to participate, you should make sure you understand how it affects you. You should understand that there are risks involved, including, but not limited to, risks such as unexpected errors. By choosing to implement these recommendations, you alone assume the risks of the consequences. This publication and recommendations are not a sale of any kind and do not create warranties of any kind, including, but not limited to, those relating to the Ethereum network or the Ethereum clients referenced herein.