v0.4.4
[doc] FP8 training and communication document (#6050)
[doc] add GPU cloud playground (#5851)
[legacy] clean up legacy code (#4743)
fix typo docs/
[workflow] supported conda package installation in doc test (#3028)
[test] refactor tests with spawn (#3452)
[misc] Add dist optim to doc sidebar (#5806)
[doc] add opt service doc (#2747)