Hello,

I tested this new XMRig version with my Mac Pro (2013) with 2 AMD Radeon FirePro D300 (2x2Gb) cards, but it seems that it is not running with the OpenGL library.
I tested with the KEVA coin and MONERO coin, same error.
You can find below the error displayed by XMrig using the OpenGL option :
* OPENCL       #0 Apple/OpenCL 1.2 (May  8 2021 03:14:28)
 * OPENCL GPU   #0 n/a AMD Radeon HD - FirePro D300 Compute Engine 850 MHz cu:20 mem:512/2048 MB
 * OPENCL GPU   #1 n/a AMD Radeon HD - FirePro D300 Compute Engine 850 MHz cu:20 mem:512/2048 MB
 * CUDA         disabled
[2021-05-28 08:46:05.982]  net      use pool kevacoin.herominers.com:10140  78.47.127.170
[2021-05-28 08:46:05.982]  net      new job from kevacoin.herominers.com:10140 diff 50000 algo rx/keva height 331722
[2021-05-28 08:46:05.982]  cpu      use argon2 implementation SSSE3
[2021-05-28 08:46:05.982]  randomx  init dataset algo rx/keva (8 threads) seed d0fe845b8de9c7bd...
[2021-05-28 08:46:07.394]  randomx  allocated 2336 MB (2080+256) huge pages 0% 0/1168 +JIT (1412 ms)
[2021-05-28 08:46:13.803]  randomx  dataset ready (6410 ms)
[2021-05-28 08:46:13.803]  cpu      use profile  rx/wow  (2 threads) scratchpad 1024 KB
[2021-05-28 08:46:13.810]  cpu      READY threads 2/2 (2) huge pages 100% 2/2 memory 2048 KB (6 ms)
[2021-05-28 08:46:13.810]  opencl   use profile  rx  (4 threads) scratchpad 1024 KB
|  # | GPU |  BUS ID | INTENSITY | WSIZE | MEMORY | NAME
|  0 |   0 |     n/a |       320 |     8 |    320 | AMD Radeon HD - FirePro D300 Compute Engine
|  1 |   0 |     n/a |       320 |     8 |    320 | AMD Radeon HD - FirePro D300 Compute Engine
|  2 |   1 |     n/a |       320 |     8 |    320 | AMD Radeon HD - FirePro D300 Compute Engine
|  3 |   1 |     n/a |       320 |     8 |    320 | AMD Radeon HD - FirePro D300 Compute Engine
[2021-05-28 08:46:13.810]  opencl   error CL_INVALID_BUFFER_SIZE when calling clCreateBuffer with buffer size 2181038080
[2021-05-28 08:46:13.810]  opencl   error CL_INVALID_BUFFER_SIZE when calling clCreateBuffer with buffer size 2181038080
[2021-05-28 08:46:13.810]  opencl   error CL_INVALID_BUFFER_SIZE when calling clCreateBuffer with buffer size 2181038080
[2021-05-28 08:46:13.810]  opencl   error CL_INVALID_BUFFER_SIZE when calling clCreateBuffer with buffer size 2181038080
[2021-05-28 08:46:13.811]  opencl   thread #2 failed with error RandomX dataset is not available
[2021-05-28 08:46:13.811]  opencl   thread #0 failed with error RandomX dataset is not available
[2021-05-28 08:46:13.812]  opencl   thread #3 failed with error RandomX dataset is not available
[2021-05-28 08:46:13.812]  opencl   thread #1 failed with error RandomX dataset is not available
[2021-05-28 08:46:13.812]  opencl   thread #2 self-test failed
[2021-05-28 08:46:13.812]  opencl   thread #3 self-test failed
[2021-05-28 08:46:13.812]  opencl   thread #0 self-test failed
[2021-05-28 08:46:13.813]  opencl   thread #1 self-test failed
[2021-05-28 08:46:13.813]  opencl   disabled (failed to start threads)

Thank you in advance for your feedback.
Regards