Hi, Tingyun!
The graphics pack will go into the release version without changes and without any compatibility patches.
I do not plan to update this graphics pack, so it will be more logical if you maintain compatibility yourself.
I have included this compatibility patch for example because your mod is quite popular.

I will add this graphic pack to the ModDB page.
In earlier versions I used some of the changes in the balance of prices and weapons.
Then I did a little research on the validity of rebalance prices and found that vanilla is very accurately corresponds to that era.
I don't have time to study the balance of weapons. so I went back to vanilla.
I never played the storyline because I prefer the sandbox.
So I do not know what difficulties may arise in the passage of the storyline with my graphic pack.
Dark Age is a very heavy mod for the engine. It may not be suitable for the storyline or for the streams.
I made it for myself to play in the sandbox sometimes.
This looks good only at the maximum graphics settings.
I recommend using this...
Render Method: DirectX 9
Antialiasing: 8x
Monitor Gamma: 2.5
Shader Quality: High
HDR Mode: Off
Auto-exposure: Off
Use Depth Effects: Off
Use Instancing: On
Dynamic Lighting: On
Particle Systems: On
Anisotropic Filtering: On
and highly recommend SMAA Injector (read more on Nexus)