v0.3.10

Features

• add concurrency-safe compose.ProcessState and deprecate compose.GetState
• adjust concat schema.Message.Extra chunk, support register custom Concat for Message.Extra

What's Changed

• feat: remove checking that a node cannot be the successor of another … by @meguminnnnnnnnn in #62
• fix: move concat & concat message extra by ConcatItems by @meguminnnnnnnnn in #66
• feat: add ProcessState & deprecate GetState by @meguminnnnnnnnn in #67

Full Changelog: v0.3.9...v0.3.10