Full changelog:
- [refactor] Use PrimitiveType::type instead of DataType::type (#1926) (by Taichi Gardener)
- [example] Upgrade mass_spring_3d.py to Taichi THREE v0.0.5 (#1919) (by 彭于斌)
- [async] [metal] Support async mode on Metal (#1920) (by Ye Kuang)
- [type] [refactor] Promote DataType to a class (#1906) (by Yuanming Hu)
- [async] Partial SFG node GC (keep latest state writers/readers) (#1915) (by xumingkuan)
- [doc] Improve description of the pos parameter in gui (#1904) (by qbao0x3273)