PANews reported on November 4 that Cosmos Hub posted on the X platform: "Get ready for Cosmos Hub v21. The software has undergone rigorous integration and end-to-end testing + comprehensive testnet trials. The upgrade will be launched at block 22953640 (estimated at 23:00 on November 6, Beijing time). This upgrade will enable consumer chains to send ICS rewards in any denomination through any IBC channel, and add rewards of up to three denominations together, completely without permission. This version upgrades Interchain Security (ICS) to v6.3.0, allowing consumer chains to use the remark field of the IBC transfer data packet to mark ICS rewards with consumer IDs; therefore, consumer chains can send ICS rewards on any IBC channel in any denomination."
Cosmos Hub is expected to upgrade to version 21 on November 6
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