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Adds 55 articles (plus 76 code samples) spanning four new domains and two existing domains, extracted from the internal Business Central review-agent prompt. Content was filtered against BCQuality's remedial-knowledge premise: each article encodes BC-specific behaviour, a CodeCop rule, a platform API semantic, or an anti-false-positive guideline that a capable LLM would otherwise get wrong. New domains: - privacy (11 articles): DataClassification inheritance semantics, the StrSubstNo-defeats-Error-telemetry-classification pitfall, Privacy Notice consent for outgoing requests, anti-false-positives for pages and in-memory data. - upgrade (11 articles): upgrade-codeunit structure, upgrade-tag lifecycle and registration, protected DB reads, DataTransfer for large datasets, InitValue semantics, enum-ordinal preservation, obsolete-workflow, first-install detection. - ui (9 articles): caption capitalization by phrase type, tooltip voice, teaching-tip vs tooltip, tour-tip conventions, character limits, banned terms, ampersand handling, title punctuation. - style (11 articles): label-suffix convention, API page naming, temporary-variable prefix, label properties (Comment/Locked), named invocations, FieldCaption in user messages, OptionCaption pairing, Error-parameter passing, `this` keyword, required parentheses, file naming. Gaps in existing domains: - performance (11 articles): production-scale table catalog (no row counts, per internal-data concern), anti-false-positive for bounded tables, guard-before-Get ordering, redundant-Get-in-OnAfterGetRecord, LockTable in read-only helpers, combined ModifyAll passes, writes in OnAfterGetRecord, SetLoadFields heuristics, temporary-table regressions, FlowField source-table widening, MaintainSQLIndex disabling SIFT. - security (2 articles): environment-specific hardcoded GUIDs, ValidateTableRelation=false on user input. Intentionally excluded: specific production P95 row-count numbers (aggregated internal telemetry); rewritten as categorical guidance on which tables to treat as production-scale without publishing sizes. All articles use `bc-version: [all]` (applies to every BC version, per the new schema sentinel). Validator passes with 0 errors / 0 warnings.
26 lines
1.5 KiB
Markdown
26 lines
1.5 KiB
Markdown
---
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bc-version: [all]
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domain: upgrade
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keywords: [obsolete, obsoletestate, obsoletereason, obsoletetag, deprecation]
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technologies: [al]
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countries: [w1]
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application-area: [all]
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---
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# Deprecate via ObsoleteState Pending first; move to Removed only after the grace window
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## Description
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AL's obsolete workflow is two-stage by design. `ObsoleteState = Pending` keeps the object or member compilable and callable but emits warnings and records the deprecation in metadata. `ObsoleteState = Removed` makes it a compile error for callers. Jumping straight to Removed — or marking Pending without `ObsoleteReason` and `ObsoleteTag` — breaks dependents who had no signal to migrate, and loses the tooling's ability to surface the planned removal in sandbox builds before the production tenant upgrades.
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## Best Practice
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Mark the element `ObsoleteState = Pending` with a concrete `ObsoleteReason` naming the replacement and an `ObsoleteTag` identifying the version the deprecation started. Keep it Pending through at least one major release so dependents have a cycle to migrate. Move to `ObsoleteState = Removed` only in a later release, with the same Reason and Tag retained or updated.
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See sample: `use-obsolete-pending-before-removed.good.al`.
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## Anti Pattern
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`[Obsolete('', '')]` or `ObsoleteState = Removed` applied directly on an element that was public and callable in the previous release, with no preceding Pending phase. Dependents get a hard compile error with no migration signal in the previous version.
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See sample: `use-obsolete-pending-before-removed.bad.al`.
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