RouterOS 7.21.2 [stable]がリリースされました

はじめに
Changelog
主要な改善点
おわりに
リンク

はじめに

MikroTikは2026年1月29日、RouterOS 7.21.2 Stableバージョンをリリースしました。このアップデートでは、コンテナ機能の大幅な改善、PoE出力の安定性向上、BGPのエラー処理改善など、実用的な修正が多数含まれています。

RouterOS 7.21.2は、前バージョン7.21.1から約3週間での更新となります。今回のリリースは、特にコンテナ機能を活用しているユーザーにとって重要なアップデートです。Docker環境の改善やSMB共有の権限問題解決など、実際の運用で報告されていた課題に対応しています。

また、PoE対応スイッチのファームウェア更新も含まれており、802.3at/bt規格の安定性が向上しています。

Changelog

What's new in 7.21.2 (2026-Jan-29 11:54):

*) app - added "media-path" and "download-path" setting in /app/settings;
*) app - added shm_size parameter to apps that require it;
*) app - calibre-web app auto add db if none exists;
*) app - fixed Firefox and Webtop to work with https-proxy;
*) app - fixed fossil app login typo;
*) bgp - implement revised input error handling per RFC 7606;
*) container - added support for the shm_size setting;
*) container - allow non-root user write to SMB share;
*) container - changed default container registry to docker.io;
*) container - do not mount tmpfs on /tmp and /run by default;
*) container - do not start container if any volume is not mounted;
*) container - fixed nftables/iptables not working with "Message too long" error;
*) container - made container mounts writable by the user;
*) defconf - added single port MGMT bridge on CCR/RDS for easier /app configuration;
*) defconf - improved firewall rule for local traffic to the loopback interface;
*) disk - fixed issue where mountpoint was not removed after removing the disk;
*) dns - fixed domain resolution for the ":resolve" command "server" parameter;
*) lte - fixed issue for Chateau 5G R17 ax (introduced in v7.21.1);
*) poe-out - firmware update for 802.3at capable boards (the update will cause a brief power interruption to poe-out interfaces);
*) poe-out - firmware update for 802.3bt capable boards (the update will cause a brief power interruption to poe-out interfaces);
*) poe-out - fixed occasional firmware update failure on CRS354;
*) poe-out - fixed PSU state recovery upon unplug/replug on CRS320;
*) ppp - added initial support for BG770A-GL modem firmware update;
*) ppp - fixed premature PPP client disconnect on BG77 modems during firmware update;
*) route - prevent creating routing tables with the same name;
*) routing-filter - fixed num-set matcher;
*) sfp - fixed sfp-ignore-rx-loss parameter for RB760iGS;
*) sfp - improved initialization and linking for some QSFP modules;
*) snmp - fixed handling of the script "dont-require-permissions" parameter when executing scripts using MIKROTIK-MIB::mtxrScriptRunOutput;
*) snmp - fixed permission error reporting when executing scripts using MIKROTIK-MIB::mtxrScriptRunOutput (introduced in v7.21);
*) snmp - fixed script "run-count" update after execution;
*) system - do not attempt to use FastPath RPS on non-ARM64 devices (introduced in v7.21);
*) user-manager - properly release database backup file after backup creation;
*) zerotier - improved route removal;