https://community.extremenetworks.com/t5/extremeswitching-exos-switch/firmware-upgrade-path-for-x670-switch-from-16-1-3-6-to-exos-31-7/m-p/122275#M23251 <P>Hi,</P><P>Since the source version is very old and Extreme has removed older versions (without clearly explaining why), the best approach might be to use a Rescue Image with the latest version.<BR />One reason for this —regardless of the availability of intermediate versions— is the change in default parameters between major versions. Typically, an incremental update preserves the original settings.<BR />After updating the version, you would re-apply the current configuration (after performing a backup).<BR />The maintenance window tends to be longer with this procedure, and it is highly recommended to perform it on-site, near the equipment.</P><P>If you have a spare unit, I would run the process on that first to familiarize yourself with the procedure and verify that the current configurations remain compatible.<BR />Regards,<BR />Raúl Carbonari</P> Thu, 06 Aug 2026 13:33:21 GMT Raul_Carbonari 2026-08-06T13:33:21Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/firmware-upgrade-path-for-x670-switch-from-16-1-3-6-to-exos-31-7/m-p/122256#M23249 <P>Hi All,<BR /><BR />im looking for to upgrade my&nbsp;X670G2-48x-4q switches from 16.1.x to 31.7.4.X version. and i couldnt find any exact document reference to follow the correct path so it would be great if somebody help me on this.</P><P>Regards<BR />Dhilipkumar</P> Tue, 04 Aug 2026 05:54:17 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/firmware-upgrade-path-for-x670-switch-from-16-1-3-6-to-exos-31-7/m-p/122256#M23249 dhilipkumar 2026-08-04T05:54:17Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/firmware-upgrade-path-for-x670-switch-from-16-1-3-6-to-exos-31-7/m-p/122275#M23251 <P>Hi,</P><P>Since the source version is very old and Extreme has removed older versions (without clearly explaining why), the best approach might be to use a Rescue Image with the latest version.<BR />One reason for this —regardless of the availability of intermediate versions— is the change in default parameters between major versions. Typically, an incremental update preserves the original settings.<BR />After updating the version, you would re-apply the current configuration (after performing a backup).<BR />The maintenance window tends to be longer with this procedure, and it is highly recommended to perform it on-site, near the equipment.</P><P>If you have a spare unit, I would run the process on that first to familiarize yourself with the procedure and verify that the current configurations remain compatible.<BR />Regards,<BR />Raúl Carbonari</P> Thu, 06 Aug 2026 13:33:21 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/firmware-upgrade-path-for-x670-switch-from-16-1-3-6-to-exos-31-7/m-p/122275#M23251 Raul_Carbonari 2026-08-06T13:33:21Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/firmware-upgrade-path-for-x670-switch-from-16-1-3-6-to-exos-31-7/m-p/122277#M23252 <P>Upgrading from EXOS 16.1.x to 31.7.x is a significant version jump, so I'd recommend avoiding a direct upgrade unless the release notes explicitly confirm it's supported. Check the release notes for both 31.7.4.2 and any intermediate long-term releases to verify the required upgrade path and bootloader requirements. If the documentation isn't clear, opening a support case with the vendor is the safest approach, as they can provide the officially supported migration path for the X670-G2 platform. Hopefully someone who has already completed this exact upgrade can share their experience as well. <A href="https://savetikio.com/" target="_self">TikTokio</A></P> Thu, 06 Aug 2026 18:27:17 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/firmware-upgrade-path-for-x670-switch-from-16-1-3-6-to-exos-31-7/m-p/122277#M23252 booflix 2026-08-06T18:27:17Z