The Ethereum Ropsten testnet has stalled over the weekend, and it’s not usable at the moment. Ethereum developers were busy rolling out the next network upgrade, a hard fork, called Constantinople, which failed to activate because of an unspecified “consensus issue”.

While hiccups are always expected when rolling out network updates, this one is especially painful because Constantinople has been long in the works, and is important as it will introduce changes to Ethereum’s underlying economic policy. Looks like the upgrade failed because miners did not upgrade the software on their nodes. This failure likely means that Constantinople won’t be activated on the main Ethereum blockchain this year.

NASDAQ is reportedly exploring a security token platform, which would allow companies to raise funds by issuing tokens (STO). So looks like ICOs are not dead, they are just going to continue under a different name. To make the story even more interesting, NASDAQ might start tokenizing existing securities, and that is going to be a game changer.

And lastly, the price difference between Bitfinex and the non-Tether exchanges, Coinbase and Bitstamp, is growing uncomfortably big. At the same time, the USD - Tether peg looks weaker than ever.