Dear NULS community,
Due to the recent frequent calling of smart contract, we have found that sending too many contract transactions at one time may cause block packaging timeout increasing yellow cards. NULS node program v2.7.2 version is now released(https://github.com/nuls-io/nuls-v2/releases), this will repair and optimize the problems found.
This update is not compulsory still, we recommend to upgrade all nodes to avoid block packaging timeout and yellow card punishment. We also advise node owners to upgrade the server configuration as much as possible and ensure stable operation of the service.
Windows upgrading tutorial:
Linux upgrading tutorial ：
November 17, 2020