Update CERNenv Space

space/training/requirements.txt

@@ -1,20 +1,21 @@
 --extra-index-url https://download.pytorch.org/whl/cu121
-# Pin a torch + torchao + transformers triple known to work with Unsloth on
-# CUDA 12.1. We avoid newer transformers/torchao because they require
-# torch>=2.6 (torch.int1 added in 2.6); we pin torch 2.5.1 which is the
-# latest stable cu121 wheel that pairs cleanly with Unsloth's kernels.
+# Pinned set known to work with Unsloth + GRPO on CUDA 12.1.
+# Critical constraints:
+#   * torch < 2.6 (torch.int1 lives in 2.6+; older torchao breaks otherwise)
+#   * trl >= 0.14 (GRPOConfig / GRPOTrainer were added in 0.14)
+#   * transformers compatible with both unsloth and trl 0.15
 torch==2.5.1
 torchvision==0.20.1
 torchaudio==2.5.1
 torchao==0.7.0
-transformers==4.46.3
-trl==0.12.2
-peft==0.13.2
-accelerate==1.1.1
-datasets==3.1.0
-bitsandbytes==0.44.1
-unsloth==2024.12.4
-unsloth_zoo==2024.12.7
+transformers==4.48.3
+trl==0.15.2
+peft==0.14.0
+accelerate==1.3.0
+datasets==3.2.0
+bitsandbytes==0.45.0
+unsloth==2025.2.4
+unsloth_zoo==2025.2.3
 matplotlib>=3.8.0
 numpy>=1.24.0
 scipy>=1.10.0