While official changelogs for Huawei consumer gear are rarely public, updates in the 2.70.x branch generally include:
From that day on, Alex traveled the cosmos, using her cryptographic skills to unravel the mysteries of the universe. And though she never forgot the code that started it all, she knew that there were always more secrets waiting to be uncovered. pd1732f-ex-a-2.70.8
Specialized firmware designed for a specific hardware platform. Unlocking the Power of PD1732F-EX-A-2