According to the Firo (FIRO) team, a mandatory upgrade will take place on Oct 26 06:00 UTC. Gate.io supports this upgrade and will suspend Firo (FIRO deposits and withdrawals during the process. Deposits and withdrawals will be resumed as soon as possible after this upgrade. FIRO trading will not be affected.
Thank you for your understanding and continued support.

This is a mandatory release that changes mining algorithm to FiroPoW and also introduces InstantSend functionality for transactions (including Lelantus transactions).

Learn more:
https://github.com/firoorg/firo/releases/tag/v0.14.9.0