diff --git a/crates/epiphany-engrave/DECISIONS.md b/crates/epiphany-engrave/DECISIONS.md
index 644640f..951882a 100644
--- a/crates/epiphany-engrave/DECISIONS.md
+++ b/crates/epiphany-engrave/DECISIONS.md
@@ -268,9 +268,12 @@ resolved:
 
 ## Quality metrics (2026-07) — decisions
 
-The Quality Metric Catalog companion (v0.2.0) ratified the nine normative
-axes' formal definitions, anchors, thresholds, and the
-`QualityFloorApproached` trigger; `Engraver::resolve` now computes the real
+The Quality Metric Catalog companion (ratified at v0.1.0; currently v0.3.0 —
+the axis set, anchors, and thresholds are unchanged across both minor
+revisions, which narrowed *what is measured over*, not what it is normalized
+against) ratified the nine normative axes' formal definitions, anchors,
+thresholds, and the `QualityFloorApproached` trigger; `Engraver::resolve`
+now computes the real
 vector (the private `quality` module), replacing the all-worst placeholder.
 The catalog's normative constants (anchors, the Minimal/Standard threshold
 table, the 0.8 warning fraction, the tier/profile→column mappings) are
diff --git a/crates/epiphany-engrave/src/quality.rs b/crates/epiphany-engrave/src/quality.rs
index 5a0d5ce..fbaa7cd 100644
--- a/crates/epiphany-engrave/src/quality.rs
+++ b/crates/epiphany-engrave/src/quality.rs
@@ -1,10 +1,13 @@
 //! **Real quality-metric computation** — the nine normative axes of the
-//! *Quality Metric Catalog* companion (v0.2.0, Chapter 3), measured over what
+//! *Quality Metric Catalog* companion (v0.3.0, Chapter 3), measured over what
 //! the pipeline already produced: the resolved world-frame geometry
 //! ([`CastLayout`]), the constrained input (slot identity, vertical bands), and
-//! the declared page geometry. Normalization anchors, threshold tables, and the
-//! warning fraction are the catalog's, transcribed in
-//! [`epiphany_layout_ir::quality`].
+//! the declared page geometry. This module implements the v0.3.0 unit set:
+//! `spacing_distortion` over rhythmic columns (v0.2.0) and
+//! `vertical_density_penalty` over each *realization* of a gap band (v0.3.0).
+//! Both revisions narrowed what is measured over, not what it is normalized
+//! against: the anchors, threshold tables, and warning fraction are the
+//! catalog's, transcribed unchanged in [`epiphany_layout_ir::quality`].
 //!
 //! Every measurement here is a pure function of the solve's inputs and its
 //! resolved output — no clocks, no entropy, fixed iteration order — so repeated
diff --git a/crates/epiphany-layout-ir/DECISIONS.md b/crates/epiphany-layout-ir/DECISIONS.md
index 751c976..778ae5a 100644
--- a/crates/epiphany-layout-ir/DECISIONS.md
+++ b/crates/epiphany-layout-ir/DECISIONS.md
@@ -425,7 +425,8 @@ object is covered); the provenance-preservation contract itself is unchanged.
 ## Quality Metric Catalog constants (`src/quality.rs`, 2026-07)
 
 **Decision: the catalog's normative constants live in this crate, as a pure
-transcription.** The Quality Metric Catalog companion (v0.2.0) pins the nine
+transcription.** The Quality Metric Catalog companion (currently v0.3.0; every
+number below is unchanged since v0.1.0) pins the nine
 axes' normalization anchors (`R_worst`), the clamped-linear normalization form
 `n = min(1, raw / R_worst)`, the Minimal/Standard threshold table, the
 `QualityFloorApproached` warning fraction (0.8), and the tier/profile →
diff --git a/crates/epiphany-layout-ir/src/quality.rs b/crates/epiphany-layout-ir/src/quality.rs
index ab392f2..78a0dac 100644
--- a/crates/epiphany-layout-ir/src/quality.rs
+++ b/crates/epiphany-layout-ir/src/quality.rs
@@ -1,10 +1,14 @@
 //! The Quality Metric Catalog's normative constants (companion specification
 //! *Epiphany — Quality Metric Catalog*, v0.3.0): the per-axis normalization
 //! anchors, the per-tier metric threshold table, the profile→threshold-column
-//! mapping, and the `QualityFloorApproached` warning fraction. (The v0.3.0
-//! `spacing_distortion` refinement scoped that axis's *measurement domain* to
-//! rhythmic columns; it touched no anchor or threshold, so this transcription
-//! of the numeric constants is unchanged.)
+//! mapping, and the `QualityFloorApproached` warning fraction.
+//!
+//! **Neither minor revision so far has moved a number here.** v0.2.0 narrowed
+//! `spacing_distortion`'s *measurement domain* to rhythmic columns; v0.3.0
+//! narrowed `vertical_density_penalty`'s *contributing units*, counting one per
+//! realization of a gap band rather than one per band. Both changed what a
+//! solver measures over, not what it normalizes against, so this transcription
+//! of the numeric constants is unchanged across both.
 //!
 //! This module is a **transcription**, not an invention: every number here is
 //! pinned by the catalog and cited to its chapter. Solvers that compute real
diff --git a/crates/epiphany-testkit/src/reference_suite.rs b/crates/epiphany-testkit/src/reference_suite.rs
index 93fb6e4..f4c67bb 100644
--- a/crates/epiphany-testkit/src/reference_suite.rs
+++ b/crates/epiphany-testkit/src/reference_suite.rs
@@ -122,7 +122,8 @@ pub fn entries() -> Vec<SuiteEntry> {
             construction: "fixtures::ten_measure_single_staff(0x000A_11CE)",
             build: rs1,
             // Passes every Minimal threshold under the reference engraver
-            // (engrave v3, QMC v0.2.0 anchors). Greedy first-fit alone left a
+            // (the QMC anchors it is scored against are unchanged through
+            // v0.3.0). Greedy first-fit alone left a
             // two-measure stub last system (width CV 0.61 -> clamped 1.0 > the
             // 0.90 threshold, the original P12-I11 miss); casting-off's
             // widow-rebalance phase now evens the split to a six/four