hi @Olegsbr,
NO the code for the source 5.2 is unstable and is not the same as BINARY.
I hand coded GPUkernel patches into 5.3 its taken over 80 hours. The Market Creators wanted 5.3 GPU source and it was a good idea as it so much better than 5.2. Substrate and PCG work well, less GPULIGHTMASS GPU memory Texture Streaming errors non-existent.