TRON network has released the Odyssey 3.6.6 on Jan 13, 2020 (SGT).

The main updates in this version are:

1)Optimized the HTTP interface for SRs to modify the commission rate;

2)Extended the allowed instruction sets for off-chain smart contract call;

3)Added a proposal to forbid using TransferContract & TransferAssetContract for contract account.

This is a forced upgrade. All nodes are expected to complete the upgrade as soon as possible.