Highlights of the week
1. $UNI releases version 4.
2. $MATIC announces Polygon 2.0 upgrade.
3. $BNB launches $BTC mining cloud services amid SEC crackdown in the US
4. $BTC supply on exchanges drops to 5-year low
5. Bank of China issues first security token on $ETH.
6. $XRP partners with Central Bank of Colombia to explore blockchain usage.