v0.4.2
[misc] refactor launch API and tensor constructor (#5666)
[example] make gpt example directory more clear (#2353)
[Examples] Add lazy init to OPT and GPT examples (#5924)
[plugin] support all-gather overlap for hybrid parallel (#5919)
[MoE/ZeRO] Moe refactor with zero refactor (#5821)
[example]add gpt2 benchmark example script. (#5295)
[devops] remove post commit ci (#5566)
[zero] support all-gather overlap (#5898)