37 lines
2.0 KiB
Markdown
37 lines
2.0 KiB
Markdown
# Legacy compatibility and pilot contract
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## Required user-facing behavior
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| Legacy behavior | Preserve in Next | Pilot status |
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|---|---|---|
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| Product/project selection workflow | preserve after separate UX analysis | not implemented |
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| Plant 3D version discovery | preserve through adapter/override | foundation adapter |
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| Local corporate plugin availability | preserve through valid local cache | designed/tested locally |
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| P_Rec commands and Ribbon | preserve through one managed entry assembly | plugin-owned, not launched here |
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| Immediate legacy return | preserve `LauncherMode=Legacy` | designed |
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| Other legacy plugins | retain existing chain until individually migrated | required |
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## Can be removed only for migrated P_Rec_Annot
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- OrthoLoader configuration fan-out and twenty sequential `NETLOAD` calls.
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- Generated LISP/BAT as the package-loading mechanism, once explicit Next startup is runtime-proven.
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- Per-file legacy copy replacing an active module directory.
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They remain necessary for other legacy corporate plugins until those plugins have their own migration and acceptance evidence.
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## Duplicated or avoidable work
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The source shows installer recursive copy/delete, updater hash/copy work, generated LISP generation and twenty sequential module loads. The precise overlap and cost require measurement. Next reduces avoidable work by comparing manifests, reusing a valid local version, staging only a new version and loading one entry assembly. It must not claim that legacy runs these actions on every AutoCAD startup without runtime evidence.
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## P_Rec_Annot pilot
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The pilot is a dry-run contract only:
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```text
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discover Plant 3D 2026 -> validate fixture manifest -> local test-source staging
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-> activate version pointer -> build one startup NETLOAD script
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-> construct ProcessStartInfo -> do not start process
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```
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It uses a fixture manifest with a synthetic SHA-256 and a test-created placeholder file. No real bundle, Plant assembly, package cache or production catalog is included.
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