Breaking changes after v0.4.1

[eric-haibin-lin]

Breaking changes

Rollout

• rollout.use_fire_sampling option is removed
• [BREAKING][rollout] refactor: drop vllm v0.5.4 and v0.6.3 support #2257 vllm v0.5.3 and vllm v0.6.3 support is removed

Deprecation

• The device_name argument for RayPPOTrainer is deprecated and will be removed in future releases [hardware] refactor: replace device_name with config.trainer.device #2542
• Arguments config and data are deprecated for verl.trainer.ppo.reward.compute_reward_async. [trainer] refactor: no need to call load_reward_manager in compute_reward_async #2557

[ragingpandas]

hdfs_path no longer being used in save_checkpoint: #2334

[davidmlw]

Merge config actor_rollout_ref.(actor, ref, rollout).profiler to actor_rollout_ref.profiler

[eric-haibin-lin]

verl.workers.rollout.sglang_rollout.AsyncSglangServer is now renamed as AsyncSGLangServer #2672