Dear Grandstream Customers,
Firmware 188.8.131.52 for UCM6102/6104/6108/6116/6202/6204/6208/6510 is now released as official. Here is the link to the release notes:
The firmware and release notes can be downloaded from: http://www.grandstream.com/support/firmware
**Important note: **
1. Backup your data including configuration before firmware upgrade is recommended.
2. It is recommended to upgrade UCM to latest firmware for product lifespan and security improvements.
Please contact us should you have any issues. Thank you for your support for Grandstream products.
Grandstream Networks, Inc.