C.2.3:19 - Change Log and Patch Notes
C.2.3:19.1 - Supersession of legacy ladder language
This pattern supersedes deprecated wording that speaks about alternate formality modes, tiers, or editorial ladders. Forward-looking use should speak in F directly.
C.2.3:19.2 - Migration guidance
When refreshing legacy material, assign an initial F from observable content, replace local maturity labels used as rigor surrogates with explicit F declarations, and keep provenance notes only as historical annotations rather than live rigor surrogates.
C.2.3:19.3 - Boundary to language-state facets
For the language-space extension, F does not govern U.ArticulationExplicitness, U.LanguageStateClosureDegree, U.LanguageStateAnchoringMode, or U.LanguageStateRepresentationFactorBundle. Contexts MUST NOT hide thresholds for those facets as pseudo-levels or submodes of F; those facets remain explicitly governed by C.2.LS and its subordinate patterns.