Bump liger-kernel minimum version to 0.7.0

liger-kernel v0.7.0 has been released with vllm_is_ratio support
(linkedin/Liger-Kernel#1088), so pin to this version as minimum and
remove the provisional xfail marker on the vllm_is_ratio test.

Author: yukiu00

pyproject.toml

@@ -58,7 +58,7 @@ kernels = [
     "kernels"
 ]
 liger = [
-    "liger-kernel>=0.6.4"
+    "liger-kernel>=0.7.0"
 ]
 peft = [
     "peft>=0.8.0"
@@ -108,7 +108,7 @@ dev = [
     # kernels
     "kernels",
     # liger
-    "liger-kernel>=0.6.4",
+    "liger-kernel>=0.7.0",
     # peft
     "peft>=0.8.0",
     # quality

tests/test_grpo_trainer.py

@@ -989,11 +989,6 @@ def test_training_with_off_policy_mask_with_liger(self):
             assert not torch.equal(param, new_param), f"Parameter {n} has not changed."
 
     @require_liger_kernel
-    @pytest.mark.xfail(
-        not is_liger_kernel_available(min_version="0.6.6"),
-        reason="Requires vllm_is_ratio support in liger-kernel >= 0.6.6 (linkedin/Liger-Kernel#1088)",
-        strict=True,
-    )
     def test_compute_liger_loss_passes_vllm_is_ratio(self):
         """Test that importance_sampling_ratio from inputs is passed to liger_grpo_loss as vllm_is_ratio."""
         dataset = load_dataset("trl-internal-testing/zen", "standard_prompt_only", split="train")

trl/import_utils.py

@@ -24,7 +24,7 @@
 from transformers.utils.import_utils import _is_package_available
 
 
-LIGER_KERNEL_MIN_VERSION = "0.6.4"
+LIGER_KERNEL_MIN_VERSION = "0.7.0"
 
 
 def is_deepspeed_available() -> bool: