The following updates via Windows Update are available for all Surface Pro 3 devices:
Supported Operating System: Windows 10 , Windows 8.1
Windows Update History Name Device Manager Name Surface – Firmware – 38.13.50.0 Surface Pro Embedded Controller Firmware
- 38.13.50.0 improves battery life during sleep.
Surface – Firmware – 3.11.2150.0 Surface Pro UEFI
- 3.11.2150.0 improves PXE performance on IPv6.
Value Indicator Score Security NA Reliability + Connectivity NA Compatibility NA Performance NA Battery Life +
Source: Microsoft Surface Pro 3 update history | Surface firmware updates
Manual Download: Download Surface Pro 3 from Official Microsoft Download Center