RouterOS 6.49.21

Build Time:1788435939
What's new in 6.49.21 (2026-09-03):

This is an important security update. Most configurations are not at risk, but upgrading is highly recommended. To give time to update your systems, we are not currently publishing detailed information.

*) btest - improve stability;
*) console - improve stability;
*) fetch - improve stability of the TFTP client;
*) snmp - improve stability of SNMP;
*) ssh - refactor SSH internal processes and improved system stability;
*) system - improve stability;
*) system - updated certificate for Windows executable signing;
*) timezone - updated timezone information from "tzdata2026b" release;