BNB: Testnet Heisenberg Upgrade
The Binance Chain testnet is expected to have a scheduled hard fork upgrade at block height 49,721,000. Based on the current block generation speed, it is forecasted to be around 2019/11/15 at 5:00 AM (UTC). The full node runners on testnet are expected to switch their software version to v0.6.3 by 2019/11/15. Binance Chain Mainnet will also be undergoing an upgrade a few weeks later (please stay tuned with the later announcement).
What is a hardfork?
The cryptocurrency mainnet operates according to certain rules. To improve network performance or correct errors, changes are periodically introduced into it. A hard fork represents changes that are not compatible with previous versions of software supporting the cryptocurrency network. In order to continue to mine the cryptocurrency, miners need to update the software.
In some cases, as a result of a hard fork, a completely new cryptocurrency may appear, as happened with Bitcoin Cash and EthereumPoW.
