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Reference · livepage:docs-harness-features-backlog-gaps-process-composition-gap-proc-003
GAP-PROC-003: Process Versioning and Migration overview
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GAP-PROC-003: Process Versioning and Migration
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GAP-PROC-003: Process Versioning and Migration
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# GAP-PROC-003: Process Versioning and Migration
| Field | Value |
|-------|-------|
| Category | process-composition |
| Priority | Medium |
| Effort | L |
| Status | Missing |
## Description
Version process definitions. Migrate in-flight runs when process definition changes. Maintain backward compatibility.
## Current State
No versioning. Process changes can break in-flight runs on replay.
## Target State
Process definitions include version metadata. In-flight runs detect version mismatch. Migration strategies: replay with new version, fork, or continue with old version. Version history tracked.
## Dependencies
- None
## Key Files
| Component | Path |
|-----------|------|
| Runtime | `packages/sdk/src/runtime/` |
| Process definitions | `.a5c/processes/` |
| Process library | `packages/sdk/src/processLibrary/` |
## Recommendation
Phase 3 implementation. Add version metadata to process definitions. Detect version mismatch on replay. Implement migration strategies.
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