Release notes > VBUC Phone Firmware > Q1 2025
Release Dates: Q1 2025
Please refer to tables below for release notes for firmware updates for specific phone models. In addition, refer to this article for process detail and FAQ.
* Dates subject to change.
| Vendor | Model | Firmware version | Release Notes | Start firmware rollout * | Firmware rollout completed * |
| Cisco | 6800, 7800, 8800 series | 12.0.4SR1 | 12.0.4SR1 release notes | March 6, 2025 | March 2025 |
| Yealink | T33G, T34W series | 124.86.25.7 | T3 firmware release notes | March 6, 2025 | March 2025 |
| Yealink | T43U, T46U, T48U | 108.86.25.15 | T4 firmware release notes | March 6, 2025 | March 2025 |
| Yealink | T53W, T54W, T57W series | 96.86.25.13 | T5 firmware release notes | March 6, 2025 | March 2025 |