diff --git a/go/catalogue/amqp_is_not_a_provision_test.go b/go/catalogue/amqp_is_not_a_provision_test.go
index ed82b61..0b0191c 100644
--- a/go/catalogue/amqp_is_not_a_provision_test.go
+++ b/go/catalogue/amqp_is_not_a_provision_test.go
@@ -50,9 +50,7 @@ func TestNoCatalogueManifestNamesAmqp(t *testing.T) {
 		fset := token.NewFileSet()
 		files, _ := filepath.Glob("*.go")
 		for _, f := range files {
-			// kept_until_delivered.go keeps, deprecated, the names removed while running parts still use them; the second
-			// group removes it and this exemption together.
-			if strings.HasSuffix(f, "_test.go") || f == "kept_until_delivered.go" {
+			if strings.HasSuffix(f, "_test.go") {
 				continue
 			}
 			parsed, err := parser.ParseFile(fset, f, nil, 0)
diff --git a/go/catalogue/kept_until_delivered.go b/go/catalogue/kept_until_delivered.go
deleted file mode 100644
index 0f0e0fa..0000000
--- a/go/catalogue/kept_until_delivered.go
+++ /dev/null
@@ -1,189 +0,0 @@
-package catalogue
-
-// This file keeps, deprecated, the exported names feat/l3b-bus removed from this package while a running part still
-// uses them: an exported name is removed only after every user of it is delivered. The checker builds the running
-// node-engine's composer (mesh-host main) beside this mesh-sdk (ADR 0548 §6), and mesh-host main names them
-// (RuntimeModule, CoreCredentialModules, FromBus). Nothing in the final L3 release's heads uses any of them, but that
-// release still builds beside mesh-host 798d73e, so it keeps this file. The next release that changes mesh-sdk, once
-// the final L3 release's node-engine runs on every node, removes this file and its exemption in
-// TestNoCatalogueManifestNamesAmqp.
-
-import (
-	"fmt"
-	"slices"
-	"sort"
-	"strings"
-)
-
-// Deprecated: kept until its users are delivered (the head of this file).
-//
-// EndedControllerName is the name the ended controller had, as its module and as its seat: no manifest may name it.
-const EndedControllerName = "mesh-controller"
-
-// The kinds of a declaration that names the controller.
-//
-// Deprecated: kept until their users are delivered (the head of this file).
-const (
-	DependsRead     = "read"
-	DependsInvoke   = "invoke"
-	DependsConsume  = "consume"
-	DependsUses     = "uses"
-	DependsWaits    = "waits"
-	DependsClaims   = "claims"
-	DependsRequires = "requires"
-	DependsIs       = "is"
-)
-
-// Deprecated: kept until its users are delivered (the head of this file).
-//
-// Dependency is one declaration of a manifest that names the controller.
-type Dependency struct {
-	Module string `json:"module"`
-	// By is the account declaring it when it is not the module's own: `process <id>` or `tools <binary>`.
-	By   string `json:"by,omitempty"`
-	Kind string `json:"kind"`
-	What string `json:"what"`
-}
-
-// onController says whether a name `<owner>.<rest>` is the controller's.
-func onController(name string) bool { return strings.HasPrefix(name, EndedControllerName+".") }
-
-// invokesController says whether an invoke names a verb of the controller's seat or a tool of its module. `*` names none:
-// it is the console's grant to every tool.
-func invokesController(invoke string) bool {
-	if seat, _, ok := SeatInvoke(invoke); ok {
-		return seat == EndedControllerName
-	}
-	return onController(invoke)
-}
-
-// Deprecated: kept until its users are delivered (the head of this file).
-//
-// Dependencies are every declaration naming the controller in the manifests given, by module.
-func Dependencies(manifests map[string]Manifest) []Dependency {
-	var out []Dependency
-	add := func(module, by, kind, what string) {
-		if d := (Dependency{Module: module, By: by, Kind: kind, What: what}); !slices.Contains(out, d) {
-			out = append(out, d)
-		}
-	}
-	for name, m := range manifests {
-		if name == EndedControllerName || m.Module == EndedControllerName {
-			add(name, "", DependsIs, EndedControllerName)
-		}
-		for _, r := range m.Reads {
-			if onController(r) {
-				add(name, "", DependsRead, r)
-			}
-		}
-		for _, i := range m.Invokes {
-			if invokesController(i) {
-				add(name, "", DependsInvoke, i)
-			}
-		}
-		for _, c := range m.Consumes {
-			if onController(c) {
-				add(name, "", DependsConsume, c)
-			}
-		}
-		for _, w := range m.Waits {
-			if onController(w) {
-				add(name, "", DependsWaits, w)
-			}
-		}
-		for _, u := range m.Uses {
-			if u == EndedControllerName {
-				add(name, "", DependsUses, u)
-			}
-		}
-		for _, c := range m.Claims {
-			if c.Name == EndedControllerName {
-				add(name, "", DependsClaims, c.Name)
-			}
-		}
-		for _, r := range m.Requires {
-			if r == EndedControllerName || onController(r) {
-				add(name, "", DependsRequires, r)
-			}
-		}
-		for _, a := range m.BusAccounts() {
-			by := "process " + a.ID
-			if a.Tools {
-				by = "tools " + a.ID
-			}
-			for _, i := range a.Bus.Invokes {
-				if invokesController(i) {
-					add(name, by, DependsInvoke, i)
-				}
-			}
-		}
-	}
-	sort.Slice(out, func(i, j int) bool {
-		a, b := out[i], out[j]
-		if a.Module != b.Module {
-			return a.Module < b.Module
-		}
-		if a.Kind != b.Kind {
-			return a.Kind < b.Kind
-		}
-		if a.What != b.What {
-			return a.What < b.What
-		}
-		return a.By < b.By
-	})
-	return out
-}
-
-// Deprecated: kept until its users are delivered (the head of this file).
-//
-// ManifestRefusals is the check over a repository's manifests, by module name: one reason per declaration naming the
-// controller, none when it passes. None given fails it, since nothing read can hide a declaration.
-func ManifestRefusals(manifests map[string]Manifest) []string {
-	if len(manifests) == 0 {
-		return []string{"no manifest was read: with nothing read, nothing naming the controller can be judged absent"}
-	}
-	var out []string
-	for _, d := range Dependencies(manifests) {
-		who := d.Module
-		if d.By != "" {
-			who += " (" + d.By + ")"
-		}
-		out = append(out, fmt.Sprintf("%s declares %s %s: the controller ended by its unassignment and nothing may name it "+
-			"(ADR 0590 clause 5)", who, d.Kind, d.What))
-	}
-	return out
-}
-
-// Deprecated: a manifest says it (Manifest.CoreCredentials, CarriesCoreCredentials); kept until its users are
-// delivered (the head of this file).
-//
-// CoreCredentialModules are the modules whose own secrets are the core's credentials: the bus, mesh-provisioner and
-// its client.
-var CoreCredentialModules = []string{"mesh-provisioner", "mesh-provisioner-client", "nats"}
-
-// Deprecated: a manifest says it (Manifest.ToolRunner, IsToolRunner); kept until its users are delivered (the head
-// of this file).
-//
-// RuntimeModule is the module that is the node's tool runtime.
-const RuntimeModule = "node-tools"
-
-// Deprecated: the kept streams are the indexer's judge's; kept until its users are delivered (the head of this file).
-//
-// StreamsKeptUntilMoved are the streams declared before the check that a module keeps its data in the bus's
-// predefined forms, each allowed by name until its module moves it.
-var StreamsKeptUntilMoved = map[string][]string{
-	"brother":                    {"device-asks"},
-	"mesh-build-go":              {"toolchains-go"},
-	"mesh-build-node":            {"toolchains-node"},
-	"mesh-mail":                  {"mail", "mail-sends"},
-	"only-office":                {"convert-asks"},
-	"mesh-delivery-assigner":     {"placement"},
-	"mesh-delivery-checker":      {"checks"},
-	"mesh-delivery-forge-bridge": {"forge"},
-}
-
-// Deprecated: nothing derives it now (DerivedUpgrade reads the bus's own manifest); kept until its users are
-// delivered (the head of this file).
-//
-// FromBus is the source an older DerivedUpgrade gave the bus's policy.
-const FromBus = "the bus"