Enhancements: 

• Introduces auto-trunk and auto-LAG, NETGEAR’s automatic and dynamic configuration solutions. The auto-trunk and auto-LAG features are disabled by default.  

Bug Fixes:

• Fixes issue where an incorrect message displays when snooping membership fails for reserved multicast addresses. 
• Fixes issue where 40G stack links are not stable with QSFP BiDi modules. 

Known Issues:

• A new UI page added in the previous 12.0.11.x release under Routing > Multicast > Mroute Static-Multicast Configuration doesn’t display automatically after upgrading the switch firmware from 12.0.9.x to 12.0.11.x. Workaround: Clear the browser cache to view this newly added page.

Download Link: https://www.downloads.netgear.com/files/GDC/M4300/GSM_XSM4300_V12.0.15.4.zip

Firmware Update Instructions:

To update your product’s firmware, follow the instructions in your product’s user manual. To find your user manual, visit https://www.netgear.com/support/, enter your model number in the search box, and click the Documentation button on the product page.