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经过以太坊核心开发者的讨论，他们决定在9月18日部署这个测试网络。拜占庭是以太坊“大都会”（Metropolis）升级所需经历的第一阶段，下一阶段名为君士坦丁堡（Constantinople），将在不久后进行。
正式的网络升级会在10月初公布，取决于测试时间的长度以及测试期间产生的问题。观察者曾经预测大都会升级可能在本月开始，不过团队的持续研发进展将这一日期延后到了今年秋天。
Faster, lighter, more secure.
These are just some of the benefits Metropolis, the next upgrade to the ethereum blockchain, promises to introduce when it's finally unveiled. Long the subject of curiosity and debate, the third phase in a four-step roadmap first unveiled in 2015 stands to enact perhaps the platform's most substantial changes.