OnePlus introduced the new OnePlus 6T flagship a couple of days ago and the company with an aim of helping the developer community is releasing the kernel source which can be downloaded right away. The company has been following the trend since OnePlus 3.
Kernel source is a key part for developers to create custom ROMs for any smartphones. Only a selected few companies back the developer community so publically and OnePlus is one such.
Not stopping with just Kernel Source, OnePlus has mentioned that it is dedicated to giving all the freedom and tools required. You can download the kernel source right away from OnePlus Github page.