v5.3.0
Fix typos (#40585)
Separate `check_model_inputs` into `capture_outputs` and `merge_with_config_defaults` + ensure correctness (#43862)
[style] Rework ruff rules and update all files (#43144)
Remove research projects (#36645)
Use Python 3.9 syntax in examples (#37279)
🚨🚨 [saving] Default to 50GB shards, and remove non-safe serialization (#42734)
Remove TF/Flax examples (#40654)