Deprecation staging config, deprecation shaking, and classic object model deprecations (wave 1) - #21505

Draft

wagenet wants to merge 15 commits into

emberjs:mainfrom

wagenet:classic-object-model-deprecations

Commits on Sep 18, 2026

Draft RFC: per-deprecation early enablement and deprecation shaking

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c18f46f
Add per-deprecation stage configuration via EmberENV.DEPRECATION_STAGES

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40769e2
Link shakable deprecations to @ember/deprecated-features flags

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f07c32e
Wire deprecation shaking into the dist build

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0d0c3d7
Add ember-source/deprecation-shaking app plugin with smoke coverage

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ce6350b
Refine RFC and guard-convention docs for the two guard shapes

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2d9310c
Discuss @embroider/macros in the RFC alternatives

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366cbeb
Resolve RFC open questions on API privacy and factory-family flags

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1144e94
Address review findings in the shaking tooling

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f33e50a
Create dist/ before writing deprecation-flags.json

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5448f58
Drop the version-coupled isRemoved assertion from the shaking scenario

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c7e563b
Let except exclude ids from enable in DEPRECATION_STAGES

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d8e5119
Shield excepted ids from the removal simulation

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2cc3f84
Keep stage-config registry tests out of production runs

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d1afb0f
Make the ObjectProxy and PromiseProxyMixin deprecations shakable

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dded12f