diff --git a/conformance/runner/typescript/runner.test.ts b/conformance/runner/typescript/runner.test.ts
index 8a76c0b7d..b63cad8c6 100644
--- a/conformance/runner/typescript/runner.test.ts
+++ b/conformance/runner/typescript/runner.test.ts
@@ -63,6 +63,13 @@ interface TestCase {
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const TESTS_DIR = path.resolve(__dirname, "../../tests");
+
+/**
+ * Allowance for Node timers firing early. libuv rounds a timer's deadline down
+ * internally, so `setTimeout(2000)` can elapse in ~1999.9ms of wall clock.
+ * Small enough that no real backoff regression fits inside it.
+ */
+const TIMER_SLACK_MS = 2;
 const TEST_ACCOUNT_ID = "999";
 
 /**
@@ -468,7 +475,11 @@ function installMockHandlers(tc: TestCase): {
   );
   const handler = http.all(originPattern, async ({ request }) => {
     count++;
-    times.push(Date.now());
+    // performance.now(), not Date.now(): Date.now() is floored to whole
+    // milliseconds, so bracketing a 2000ms sleep can read 1999 purely from
+    // rounding. See TIMER_SLACK_MS for the second, separate reason this
+    // assertion needs care.
+    times.push(performance.now());
     const url = new URL(request.url);
     paths.push(url.pathname);
     methods.push(request.method);
@@ -707,10 +718,20 @@ function checkAssertions(
         if (times.length >= 2) {
           const delay = times[1]! - times[0]!;
           const minDelay = assertion.min ?? 0;
+          // Node's timers may fire marginally BEFORE the requested delay —
+          // libuv rounds the deadline down internally, so a 2000ms sleep can
+          // legitimately elapse in 1999.87ms. That is a runtime property, not
+          // an SDK behaviour: the SDK asked for the full interval. The Go
+          // runner never sees it because Go's timers do not fire early.
+          //
+          // A sub-millisecond allowance cannot mask a real regression, which
+          // would miss by hundreds of milliseconds (a dropped Retry-After
+          // means ~1000ms of backoff instead of 2000ms) or by the whole
+          // interval (no delay at all).
           expect(
             delay,
-            `[${tc.name}] expected delay >= ${minDelay}ms, got ${delay}ms`,
-          ).toBeGreaterThanOrEqual(minDelay);
+            `[${tc.name}] expected delay >= ${minDelay}ms (allowing ${TIMER_SLACK_MS}ms timer slack), got ${delay}ms`,
+          ).toBeGreaterThanOrEqual(minDelay - TIMER_SLACK_MS);
         }
         break;
       }
diff --git a/go/pkg/basecamp/recordings.go b/go/pkg/basecamp/recordings.go
index 5a35cc684..6bdaac14d 100644
--- a/go/pkg/basecamp/recordings.go
+++ b/go/pkg/basecamp/recordings.go
@@ -44,7 +44,13 @@ type Recording struct {
 	URL              string    `json:"url"`
 	AppURL           string    `json:"app_url"`
 	BookmarkURL      string    `json:"bookmark_url"`
-	Content          string    `json:"content,omitempty"`
+	// BubbleUpURL is the URL of the Bubble Up record for this recording. Optional
+	// on this polymorphic projection: recordings/_recording.json.jbuilder emits
+	// the key only when the caller passes bubbleupable, and todolists/_todolist
+	// is the only partial that does — so a Todolist-shaped instance carries it
+	// and the other recording types do not.
+	BubbleUpURL string `json:"bubble_up_url,omitempty"`
+	Content     string `json:"content,omitempty"`
 	// ContentAttachments and DescriptionAttachments are the rich text companion
 	// arrays carried through the generic recording projection. A given recording
 	// is one type, so it carries only the array matching its rich text attribute
@@ -436,6 +442,7 @@ func recordingFromGenerated(gr generated.Recording) Recording {
 		URL:              gr.Url,
 		AppURL:           gr.AppUrl,
 		BookmarkURL:      gr.BookmarkUrl,
+		BubbleUpURL:      gr.BubbleUpUrl,
 		Content:          gr.Content,
 		CommentsCount:    int(gr.CommentsCount),
 		CommentsURL:      gr.CommentsUrl,
diff --git a/go/pkg/basecamp/recordings_test.go b/go/pkg/basecamp/recordings_test.go
index fe6fd21b1..4140ead0f 100644
--- a/go/pkg/basecamp/recordings_test.go
+++ b/go/pkg/basecamp/recordings_test.go
@@ -32,8 +32,21 @@ func TestRecording_UnmarshalList(t *testing.T) {
 		t.Fatalf("failed to unmarshal list.json: %v", err)
 	}
 
-	if len(recordings) != 2 {
-		t.Errorf("expected 2 recordings, got %d", len(recordings))
+	if len(recordings) != 3 {
+		t.Errorf("expected 3 recordings, got %d", len(recordings))
+	}
+
+	// bubble_up_url is optional on the generic Recording projection: only the
+	// todolist partial passes bubbleupable, so the two Message recordings omit
+	// it and the Todolist one carries it.
+	for _, r := range recordings {
+		if r.Type == "Todolist" {
+			if r.BubbleUpURL == "" {
+				t.Errorf("Todolist recording %d: expected BubbleUpURL to be set", r.ID)
+			}
+		} else if r.BubbleUpURL != "" {
+			t.Errorf("%s recording %d: expected no BubbleUpURL, got %q", r.Type, r.ID, r.BubbleUpURL)
+		}
 	}
 
 	// Verify first recording
diff --git a/go/pkg/basecamp/search.go b/go/pkg/basecamp/search.go
index 3d19bea6f..dac6a992d 100644
--- a/go/pkg/basecamp/search.go
+++ b/go/pkg/basecamp/search.go
@@ -22,9 +22,15 @@ type SearchResult struct {
 	URL              string    `json:"url"`
 	AppURL           string    `json:"app_url"`
 	BookmarkURL      string    `json:"bookmark_url"`
-	Parent           *Parent   `json:"parent,omitempty"`
-	Bucket           *Bucket   `json:"bucket,omitempty"`
-	Creator          *Person   `json:"creator,omitempty"`
+	// BubbleUpURL is the URL of the Bubble Up record for this recording. Optional
+	// on this polymorphic projection: recordings/_recording.json.jbuilder emits
+	// the key only when the caller passes bubbleupable, and todolists/_todolist
+	// is the only partial that does — so a Todolist-shaped instance carries it
+	// and the other recording types do not.
+	BubbleUpURL string  `json:"bubble_up_url,omitempty"`
+	Parent      *Parent `json:"parent,omitempty"`
+	Bucket      *Bucket `json:"bucket,omitempty"`
+	Creator     *Person `json:"creator,omitempty"`
 	// Content and Description are always present on the wire and always null:
 	// api/searches/show.json.jbuilder renders the recording's own partial and
 	// then unconditionally overwrites both with nil to keep the large HTML body
@@ -341,6 +347,7 @@ func searchResultFromGenerated(gsr generated.SearchResult) SearchResult {
 		URL:                  gsr.Url,
 		AppURL:               gsr.AppUrl,
 		BookmarkURL:          gsr.BookmarkUrl,
+		BubbleUpURL:          gsr.BubbleUpUrl,
 		Content:              gsr.Content,
 		Description:          gsr.Description,
 		PlainTextContent:     gsr.PlainTextContent,
diff --git a/go/pkg/basecamp/search_test.go b/go/pkg/basecamp/search_test.go
index 7a2ad6769..2ceffa8f8 100644
--- a/go/pkg/basecamp/search_test.go
+++ b/go/pkg/basecamp/search_test.go
@@ -36,8 +36,22 @@ func TestSearchResult_UnmarshalResults(t *testing.T) {
 		t.Fatalf("failed to unmarshal results.json: %v", err)
 	}
 
-	if len(results) != 3 {
-		t.Errorf("expected 3 results, got %d", len(results))
+	if len(results) != 4 {
+		t.Errorf("expected 4 results, got %d", len(results))
+	}
+
+	// bubble_up_url rides the polymorphic search projection: Todolists are
+	// searchable and api_search_result_template_path falls through to
+	// todolists/todolist, which passes bubbleupable: true. Every other result
+	// type omits the key.
+	for _, r := range results {
+		if r.Type == "Todolist" {
+			if r.BubbleUpURL == "" {
+				t.Errorf("Todolist result %d: expected BubbleUpURL to be set", r.ID)
+			}
+		} else if r.BubbleUpURL != "" {
+			t.Errorf("%s result %d: expected no BubbleUpURL, got %q", r.Type, r.ID, r.BubbleUpURL)
+		}
 	}
 
 	// Verify first result (Message)
@@ -515,8 +529,8 @@ func TestSearchService_Search_BestMatchSort(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
-	if len(result.Results) != 3 {
-		t.Errorf("expected 3 results, got %d", len(result.Results))
+	if len(result.Results) != 4 {
+		t.Errorf("expected 4 results, got %d", len(result.Results))
 	}
 
 	// End-to-end projection proof: the polymorphic search projection carries a
diff --git a/go/pkg/basecamp/todolist_groups.go b/go/pkg/basecamp/todolist_groups.go
index 0f10da1cc..dc6047cd3 100644
--- a/go/pkg/basecamp/todolist_groups.go
+++ b/go/pkg/basecamp/todolist_groups.go
@@ -33,17 +33,22 @@ type TodolistGroup struct {
 	AppURL           string    `json:"app_url"`
 	BookmarkURL      string    `json:"bookmark_url"`
 	SubscriptionURL  string    `json:"subscription_url"`
-	CommentsCount    int       `json:"comments_count"`
-	CommentsURL      string    `json:"comments_url"`
-	Position         int       `json:"position"`
-	Parent           *Parent   `json:"parent,omitempty"`
-	Bucket           *Bucket   `json:"bucket,omitempty"`
-	Creator          *Person   `json:"creator,omitempty"`
-	Name             string    `json:"name"`
-	Completed        bool      `json:"completed"`
-	CompletedRatio   string    `json:"completed_ratio"`
-	TodosURL         string    `json:"todos_url"`
-	AppTodosURL      string    `json:"app_todos_url"`
+	// BubbleUpURL is the URL of the Bubble Up record for this recording. Always
+	// present: todolists/_todolist.json.jbuilder renders the shared recording
+	// partial with bubbleupable: true unconditionally, and every list, show, and
+	// group path renders that partial.
+	BubbleUpURL    string  `json:"bubble_up_url"`
+	CommentsCount  int     `json:"comments_count"`
+	CommentsURL    string  `json:"comments_url"`
+	Position       int     `json:"position"`
+	Parent         *Parent `json:"parent,omitempty"`
+	Bucket         *Bucket `json:"bucket,omitempty"`
+	Creator        *Person `json:"creator,omitempty"`
+	Name           string  `json:"name"`
+	Completed      bool    `json:"completed"`
+	CompletedRatio string  `json:"completed_ratio"`
+	TodosURL       string  `json:"todos_url"`
+	AppTodosURL    string  `json:"app_todos_url"`
 }
 
 // CreateTodolistGroupRequest specifies the parameters for creating a todolist group.
@@ -353,6 +358,7 @@ func todolistGroupFromGenerated(gg generated.TodolistGroup) TodolistGroup {
 		AppURL:           gg.AppUrl,
 		BookmarkURL:      gg.BookmarkUrl,
 		SubscriptionURL:  gg.SubscriptionUrl,
+		BubbleUpURL:      gg.BubbleUpUrl,
 		CommentsCount:    int(gg.CommentsCount),
 		CommentsURL:      gg.CommentsUrl,
 		Position:         int(gg.Position),
diff --git a/go/pkg/basecamp/todolists.go b/go/pkg/basecamp/todolists.go
index a65aa4ef6..178aa901e 100644
--- a/go/pkg/basecamp/todolists.go
+++ b/go/pkg/basecamp/todolists.go
@@ -29,13 +29,18 @@ type Todolist struct {
 	BoostsCount      int       `json:"boosts_count,omitempty"`
 	BoostsURL        string    `json:"boosts_url,omitempty"`
 	SubscriptionURL  string    `json:"subscription_url"`
-	CommentsCount    int       `json:"comments_count"`
-	CommentsURL      string    `json:"comments_url"`
-	Position         int       `json:"position"`
-	Parent           *Parent   `json:"parent,omitempty"`
-	Bucket           *Bucket   `json:"bucket,omitempty"`
-	Creator          *Person   `json:"creator,omitempty"`
-	Description      string    `json:"description"`
+	// BubbleUpURL is the URL of the Bubble Up record for this recording. Always
+	// present: todolists/_todolist.json.jbuilder renders the shared recording
+	// partial with bubbleupable: true unconditionally, and every list, show, and
+	// group path renders that partial.
+	BubbleUpURL   string  `json:"bubble_up_url"`
+	CommentsCount int     `json:"comments_count"`
+	CommentsURL   string  `json:"comments_url"`
+	Position      int     `json:"position"`
+	Parent        *Parent `json:"parent,omitempty"`
+	Bucket        *Bucket `json:"bucket,omitempty"`
+	Creator       *Person `json:"creator,omitempty"`
+	Description   string  `json:"description"`
 	// DescriptionAttachments holds structured metadata for the downloadable files
 	// embedded in the rich text Description. @required — the API always sends this
 	// array (empty when the description has no inline files). No omitempty, so on
@@ -400,6 +405,7 @@ func todolistFromGenerated(gtl generated.Todolist) Todolist {
 		BoostsCount:      int(gtl.BoostsCount),
 		BoostsURL:        gtl.BoostsUrl,
 		SubscriptionURL:  gtl.SubscriptionUrl,
+		BubbleUpURL:      gtl.BubbleUpUrl,
 		CommentsCount:    int(gtl.CommentsCount),
 		CommentsURL:      gtl.CommentsUrl,
 		Position:         int(gtl.Position),
diff --git a/go/pkg/generated/client.gen.go b/go/pkg/generated/client.gen.go
index 069d10028..cef7b41cc 100644
--- a/go/pkg/generated/client.gen.go
+++ b/go/pkg/generated/client.gen.go
@@ -1966,8 +1966,16 @@ type Recording struct {
 	// aggregate feeds (`/messages.json`, `/comments.json`), whose type-specific
 	// partials render with `boostable: true`. Optional (absent on non-boostable
 	// recordings and on the base/webhook partial).
-	BoostsCount *int32          `json:"boosts_count,omitempty"`
-	BoostsUrl   *string         `json:"boosts_url,omitempty"`
+	BoostsCount *int32  `json:"boosts_count,omitempty"`
+	BoostsUrl   *string `json:"boosts_url,omitempty"`
+
+	// BubbleUpUrl URL of the Bubble Up record for this recording (BC5 addition). Optional
+	// here because this is a polymorphic projection:
+	// `recordings/_recording.json.jbuilder` emits the key only when the caller
+	// passes `local_assigns[:bubbleupable]`, and `todolists/_todolist` is the
+	// only partial that does. So a Todolist-shaped instance carries it and the
+	// other recording types do not.
+	BubbleUpUrl string          `json:"bubble_up_url,omitempty"`
 	Bucket      RecordingBucket `json:"bucket"`
 
 	// Category A message category (type) as rendered by the shared recordings/_category
@@ -2221,8 +2229,16 @@ type SearchResponseContent = []SearchResult
 
 // SearchResult defines model for SearchResult.
 type SearchResult struct {
-	AppUrl      string          `json:"app_url"`
-	BookmarkUrl string          `json:"bookmark_url,omitempty"`
+	AppUrl      string `json:"app_url"`
+	BookmarkUrl string `json:"bookmark_url,omitempty"`
+
+	// BubbleUpUrl URL of the Bubble Up record for this recording (BC5 addition). Optional
+	// here because this is a polymorphic projection:
+	// `recordings/_recording.json.jbuilder` emits the key only when the caller
+	// passes `local_assigns[:bubbleupable]`, and `todolists/_todolist` is the
+	// only partial that does. So a Todolist-shaped instance carries it and the
+	// other recording types do not.
+	BubbleUpUrl string          `json:"bubble_up_url,omitempty"`
 	Bucket      RecordingBucket `json:"bucket,omitempty"`
 
 	// Content Always present, always null. `api/searches/show.json.jbuilder` renders the
@@ -2603,11 +2619,18 @@ type TodoParent struct {
 
 // Todolist defines model for Todolist.
 type Todolist struct {
-	AppTodosUrl            string               `json:"app_todos_url,omitempty"`
-	AppUrl                 string               `json:"app_url"`
-	BookmarkUrl            string               `json:"bookmark_url,omitempty"`
-	BoostsCount            int32                `json:"boosts_count,omitempty"`
-	BoostsUrl              string               `json:"boosts_url,omitempty"`
+	AppTodosUrl string `json:"app_todos_url,omitempty"`
+	AppUrl      string `json:"app_url"`
+	BookmarkUrl string `json:"bookmark_url,omitempty"`
+	BoostsCount int32  `json:"boosts_count,omitempty"`
+	BoostsUrl   string `json:"boosts_url,omitempty"`
+
+	// BubbleUpUrl URL of the Bubble Up record for this recording (BC5 addition). Required:
+	// `todolists/_todolist.json.jbuilder` renders the shared recording partial
+	// with `bubbleupable: true` unconditionally, and every list, show, and group
+	// path renders that partial — so the key is present on every projection of
+	// this shape.
+	BubbleUpUrl            string               `json:"bubble_up_url"`
 	Bucket                 TodoBucket           `json:"bucket"`
 	CommentsCount          int32                `json:"comments_count,omitempty"`
 	CommentsUrl            string               `json:"comments_url,omitempty"`
@@ -2637,9 +2660,16 @@ type Todolist struct {
 
 // TodolistGroup defines model for TodolistGroup.
 type TodolistGroup struct {
-	AppTodosUrl      string     `json:"app_todos_url,omitempty"`
-	AppUrl           string     `json:"app_url"`
-	BookmarkUrl      string     `json:"bookmark_url,omitempty"`
+	AppTodosUrl string `json:"app_todos_url,omitempty"`
+	AppUrl      string `json:"app_url"`
+	BookmarkUrl string `json:"bookmark_url,omitempty"`
+
+	// BubbleUpUrl URL of the Bubble Up record for this recording (BC5 addition). Required:
+	// `todolists/_todolist.json.jbuilder` renders the shared recording partial
+	// with `bubbleupable: true` unconditionally, and every list, show, and group
+	// path renders that partial — so the key is present on every projection of
+	// this shape.
+	BubbleUpUrl      string     `json:"bubble_up_url"`
 	Bucket           TodoBucket `json:"bucket"`
 	CommentsCount    int32      `json:"comments_count,omitempty"`
 	CommentsUrl      string     `json:"comments_url,omitempty"`
diff --git a/kotlin/sdk/src/commonMain/kotlin/com/basecamp/sdk/generated/models/Recording.kt b/kotlin/sdk/src/commonMain/kotlin/com/basecamp/sdk/generated/models/Recording.kt
index 32f15b041..dfa6e6a21 100644
--- a/kotlin/sdk/src/commonMain/kotlin/com/basecamp/sdk/generated/models/Recording.kt
+++ b/kotlin/sdk/src/commonMain/kotlin/com/basecamp/sdk/generated/models/Recording.kt
@@ -25,6 +25,7 @@ data class Recording(
     val bucket: RecordingBucket,
     val creator: Person,
     @SerialName("bookmark_url") val bookmarkUrl: String? = null,
+    @SerialName("bubble_up_url") val bubbleUpUrl: String? = null,
     val content: String? = null,
     @SerialName("content_attachments") val contentAttachments: List<RichTextAttachment>? = null,
     @SerialName("description_attachments") val descriptionAttachments: List<RichTextAttachment>? = null,
diff --git a/kotlin/sdk/src/commonMain/kotlin/com/basecamp/sdk/generated/models/Todolist.kt b/kotlin/sdk/src/commonMain/kotlin/com/basecamp/sdk/generated/models/Todolist.kt
index 8530b3812..58bde4022 100644
--- a/kotlin/sdk/src/commonMain/kotlin/com/basecamp/sdk/generated/models/Todolist.kt
+++ b/kotlin/sdk/src/commonMain/kotlin/com/basecamp/sdk/generated/models/Todolist.kt
@@ -22,6 +22,7 @@ data class Todolist(
     val type: String,
     val url: String,
     @SerialName("app_url") val appUrl: String,
+    @SerialName("bubble_up_url") val bubbleUpUrl: String,
     val parent: TodoParent,
     val bucket: TodoBucket,
     val creator: Person,
diff --git a/kotlin/sdk/src/commonMain/kotlin/com/basecamp/sdk/generated/models/TodolistGroup.kt b/kotlin/sdk/src/commonMain/kotlin/com/basecamp/sdk/generated/models/TodolistGroup.kt
index 30226340e..970d344b2 100644
--- a/kotlin/sdk/src/commonMain/kotlin/com/basecamp/sdk/generated/models/TodolistGroup.kt
+++ b/kotlin/sdk/src/commonMain/kotlin/com/basecamp/sdk/generated/models/TodolistGroup.kt
@@ -22,6 +22,7 @@ data class TodolistGroup(
     val type: String,
     val url: String,
     @SerialName("app_url") val appUrl: String,
+    @SerialName("bubble_up_url") val bubbleUpUrl: String,
     val parent: TodoParent,
     val bucket: TodoBucket,
     val creator: Person,
diff --git a/openapi.json b/openapi.json
index fac3028e6..37f71dc66 100644
--- a/openapi.json
+++ b/openapi.json
@@ -19457,6 +19457,7 @@
                           "description_attachments": [],
                           "url": "https://3.basecampapi.com/999/buckets/12345678/todolists/987654.json",
                           "app_url": "https://3.basecamp.com/999/buckets/12345678/todolists/987654",
+                          "bubble_up_url": "https://3.basecampapi.com/999/buckets/12345678/recordings/987654/bubble_up.json",
                           "creator": {
                             "id": 1,
                             "name": "Someone",
@@ -19496,6 +19497,7 @@
                           "type": "TodolistGroup",
                           "url": "https://3.basecampapi.com/999/buckets/12345678/todolists/111222.json",
                           "app_url": "https://3.basecamp.com/999/buckets/12345678/todolists/111222",
+                          "bubble_up_url": "https://3.basecampapi.com/999/buckets/12345678/recordings/111222/bubble_up.json",
                           "creator": {
                             "id": 1,
                             "name": "Someone",
@@ -28675,6 +28677,10 @@
           "bookmark_url": {
             "type": "string"
           },
+          "bubble_up_url": {
+            "type": "string",
+            "description": "URL of the Bubble Up record for this recording (BC5 addition). Optional\nhere because this is a polymorphic projection:\n`recordings/_recording.json.jbuilder` emits the key only when the caller\npasses `local_assigns[:bubbleupable]`, and `todolists/_todolist` is the\nonly partial that does. So a Todolist-shaped instance carries it and the\nother recording types do not."
+          },
           "content": {
             "type": "string"
           },
@@ -29378,6 +29384,10 @@
           "bookmark_url": {
             "type": "string"
           },
+          "bubble_up_url": {
+            "type": "string",
+            "description": "URL of the Bubble Up record for this recording (BC5 addition). Optional\nhere because this is a polymorphic projection:\n`recordings/_recording.json.jbuilder` emits the key only when the caller\npasses `local_assigns[:bubbleupable]`, and `todolists/_todolist` is the\nonly partial that does. So a Todolist-shaped instance carries it and the\nother recording types do not."
+          },
           "parent": {
             "$ref": "#/components/schemas/RecordingParent"
           },
@@ -30248,6 +30258,10 @@
           "subscription_url": {
             "type": "string"
           },
+          "bubble_up_url": {
+            "type": "string",
+            "description": "URL of the Bubble Up record for this recording (BC5 addition). Required:\n`todolists/_todolist.json.jbuilder` renders the shared recording partial\nwith `bubbleupable: true` unconditionally, and every list, show, and group\npath renders that partial — so the key is present on every projection of\nthis shape."
+          },
           "comments_count": {
             "type": "integer",
             "format": "int32"
@@ -30305,6 +30319,7 @@
         },
         "required": [
           "app_url",
+          "bubble_up_url",
           "bucket",
           "created_at",
           "creator",
@@ -30372,6 +30387,10 @@
           "subscription_url": {
             "type": "string"
           },
+          "bubble_up_url": {
+            "type": "string",
+            "description": "URL of the Bubble Up record for this recording (BC5 addition). Required:\n`todolists/_todolist.json.jbuilder` renders the shared recording partial\nwith `bubbleupable: true` unconditionally, and every list, show, and group\npath renders that partial — so the key is present on every projection of\nthis shape."
+          },
           "comments_count": {
             "type": "integer",
             "format": "int32"
@@ -30410,6 +30429,7 @@
         },
         "required": [
           "app_url",
+          "bubble_up_url",
           "bucket",
           "created_at",
           "creator",
diff --git a/python/src/basecamp/generated/types.py b/python/src/basecamp/generated/types.py
index c18269c6f..291a83e8b 100644
--- a/python/src/basecamp/generated/types.py
+++ b/python/src/basecamp/generated/types.py
@@ -1236,6 +1236,7 @@ class RateLimitErrorResponseContent(TypedDict):
         "bookmark_url": NotRequired[str],
         "boosts_count": NotRequired[int],
         "boosts_url": NotRequired[str],
+        "bubble_up_url": NotRequired[str],
         "bucket": "RecordingBucket",
         "category": NotRequired["RecordingCategory"],
         "comments_count": NotRequired[int],
@@ -1405,6 +1406,7 @@ class SearchMetadata(TypedDict):
 class SearchResult(TypedDict):
     app_url: str
     bookmark_url: NotRequired[str]
+    bubble_up_url: NotRequired[str]
     bucket: NotRequired[RecordingBucket]
     content: str | None
     content_attachments: NotRequired[list[RichTextAttachment]]
@@ -1600,6 +1602,7 @@ class Todolist(TypedDict):
     bookmark_url: NotRequired[str]
     boosts_count: NotRequired[int]
     boosts_url: NotRequired[str]
+    bubble_up_url: str
     bucket: TodoBucket
     comments_count: NotRequired[int]
     comments_url: NotRequired[str]
@@ -1629,6 +1632,7 @@ class TodolistGroup(TypedDict):
     app_todos_url: NotRequired[str]
     app_url: str
     bookmark_url: NotRequired[str]
+    bubble_up_url: str
     bucket: TodoBucket
     comments_count: NotRequired[int]
     comments_url: NotRequired[str]
diff --git a/python/tests/services/test_todolists_service.py b/python/tests/services/test_todolists_service.py
index badfd6efb..40e4638c9 100644
--- a/python/tests/services/test_todolists_service.py
+++ b/python/tests/services/test_todolists_service.py
@@ -15,6 +15,24 @@
 BASE = "https://3.basecampapi.com/12345"
 
 
+def _todolist(name: str) -> dict:
+    """Minimal Todolist payload for the metadata/hook tests.
+
+    These tests are about operation identity and resource-id scoping, not
+    payload shape — but a stub must not contradict the contract either.
+    bubble_up_url is @required on Todolist (todolists/_todolist.json.jbuilder
+    always passes bubbleupable: true), so it belongs here even though nothing
+    below reads it. Full-shape coverage lives in spec/fixtures, which
+    `make check-fixture-coverage` validates.
+    """
+    return {
+        "id": 2,
+        "name": name,
+        "description_attachments": [],
+        "bubble_up_url": "https://3.basecampapi.com/12345/buckets/1/recordings/2/bubble_up.json",
+    }
+
+
 class _RecordingHooks(BasecampHooks):
     def __init__(self) -> None:
         self.operations: list[OperationInfo] = []
@@ -85,9 +103,7 @@ async def test_reposition_not_found(self):
 class TestSyncTodolistMetadata:
     @respx.mock
     def test_get_scopes_resource_to_todolist_id(self):
-        respx.get(f"{BASE}/todolists/2").mock(
-            return_value=httpx.Response(200, json={"id": 2, "name": "Sprint Tasks", "description_attachments": []})
-        )
+        respx.get(f"{BASE}/todolists/2").mock(return_value=httpx.Response(200, json=_todolist("Sprint Tasks")))
 
         hooks = _RecordingHooks()
         c = Client(access_token="test-token", hooks=hooks)
@@ -102,9 +118,7 @@ def test_get_scopes_resource_to_todolist_id(self):
 
     @respx.mock
     def test_update_scopes_resource_to_todolist_id(self):
-        respx.put(f"{BASE}/todolists/2").mock(
-            return_value=httpx.Response(200, json={"id": 2, "name": "Updated List", "description_attachments": []})
-        )
+        respx.put(f"{BASE}/todolists/2").mock(return_value=httpx.Response(200, json=_todolist("Updated List")))
 
         hooks = _RecordingHooks()
         c = Client(access_token="test-token", hooks=hooks)
@@ -122,9 +136,7 @@ class TestAsyncTodolistMetadata:
     @pytest.mark.asyncio
     @respx.mock
     async def test_get_scopes_resource_to_todolist_id(self):
-        respx.get(f"{BASE}/todolists/2").mock(
-            return_value=httpx.Response(200, json={"id": 2, "name": "Sprint Tasks", "description_attachments": []})
-        )
+        respx.get(f"{BASE}/todolists/2").mock(return_value=httpx.Response(200, json=_todolist("Sprint Tasks")))
 
         hooks = _RecordingHooks()
         c = AsyncClient(access_token="test-token", hooks=hooks)
@@ -140,9 +152,7 @@ async def test_get_scopes_resource_to_todolist_id(self):
     @pytest.mark.asyncio
     @respx.mock
     async def test_update_scopes_resource_to_todolist_id(self):
-        respx.put(f"{BASE}/todolists/2").mock(
-            return_value=httpx.Response(200, json={"id": 2, "name": "Updated List", "description_attachments": []})
-        )
+        respx.put(f"{BASE}/todolists/2").mock(return_value=httpx.Response(200, json=_todolist("Updated List")))
 
         hooks = _RecordingHooks()
         c = AsyncClient(access_token="test-token", hooks=hooks)
diff --git a/ruby/lib/basecamp/generated/metadata.json b/ruby/lib/basecamp/generated/metadata.json
index 7d1d23650..470b54131 100644
--- a/ruby/lib/basecamp/generated/metadata.json
+++ b/ruby/lib/basecamp/generated/metadata.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://basecamp.com/schemas/sdk-metadata.json",
   "version": "1.0.0",
-  "generated": "2026-07-28T06:50:08Z",
+  "generated": "2026-07-28T07:10:09Z",
   "operations": {
     "GetAccount": {
       "retry": {
diff --git a/ruby/lib/basecamp/generated/types.rb b/ruby/lib/basecamp/generated/types.rb
index 27539b763..03757bc3b 100644
--- a/ruby/lib/basecamp/generated/types.rb
+++ b/ruby/lib/basecamp/generated/types.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Auto-generated from OpenAPI spec. Do not edit manually.
-# Generated: 2026-07-28T06:50:08Z
+# Generated: 2026-07-28T07:10:09Z
 
 require "json"
 require "time"
@@ -3097,7 +3097,7 @@ def to_json(*args)
     # Recording
     class Recording
       include TypeHelpers
-      attr_accessor :app_url, :bucket, :created_at, :creator, :id, :inherits_status, :status, :title, :type, :updated_at, :url, :visible_to_clients, :bookmark_url, :boosts_count, :boosts_url, :category, :comments_count, :comments_url, :content, :content_attachments, :description, :description_attachments, :from, :group_on, :parent, :position, :replies_count, :replies_url, :service, :subject, :subscription_url
+      attr_accessor :app_url, :bucket, :created_at, :creator, :id, :inherits_status, :status, :title, :type, :updated_at, :url, :visible_to_clients, :bookmark_url, :boosts_count, :boosts_url, :bubble_up_url, :category, :comments_count, :comments_url, :content, :content_attachments, :description, :description_attachments, :from, :group_on, :parent, :position, :replies_count, :replies_url, :service, :subject, :subscription_url
 
       # @return [Array<Symbol>]
       def self.required_fields
@@ -3120,6 +3120,7 @@ def initialize(data = {})
         @bookmark_url = data["bookmark_url"]
         @boosts_count = parse_integer(data["boosts_count"])
         @boosts_url = data["boosts_url"]
+        @bubble_up_url = data["bubble_up_url"]
         @category = parse_type(data["category"], "RecordingCategory")
         @comments_count = parse_integer(data["comments_count"])
         @comments_url = data["comments_url"]
@@ -3155,6 +3156,7 @@ def to_h
           "bookmark_url" => @bookmark_url,
           "boosts_count" => @boosts_count,
           "boosts_url" => @boosts_url,
+          "bubble_up_url" => @bubble_up_url,
           "category" => @category,
           "comments_count" => @comments_count,
           "comments_url" => @comments_url,
@@ -3511,7 +3513,7 @@ def to_json(*args)
     # SearchResult
     class SearchResult
       include TypeHelpers
-      attr_accessor :app_url, :content, :description, :id, :title, :type, :url, :bookmark_url, :bucket, :content_attachments, :created_at, :creator, :description_attachments, :inherits_status, :parent, :plain_text_content, :plain_text_description, :status, :subject, :updated_at, :visible_to_clients
+      attr_accessor :app_url, :content, :description, :id, :title, :type, :url, :bookmark_url, :bubble_up_url, :bucket, :content_attachments, :created_at, :creator, :description_attachments, :inherits_status, :parent, :plain_text_content, :plain_text_description, :status, :subject, :updated_at, :visible_to_clients
 
       # @return [Array<Symbol>]
       def self.required_fields
@@ -3527,6 +3529,7 @@ def initialize(data = {})
         @type = data["type"]
         @url = data["url"]
         @bookmark_url = data["bookmark_url"]
+        @bubble_up_url = data["bubble_up_url"]
         @bucket = parse_type(data["bucket"], "RecordingBucket")
         @content_attachments = parse_array(data["content_attachments"], "RichTextAttachment")
         @created_at = parse_datetime(data["created_at"])
@@ -3552,6 +3555,7 @@ def to_h
           "type" => @type,
           "url" => @url,
           "bookmark_url" => @bookmark_url,
+          "bubble_up_url" => @bubble_up_url,
           "bucket" => @bucket,
           "content_attachments" => @content_attachments,
           "created_at" => @created_at,
@@ -4048,15 +4052,16 @@ def to_json(*args)
     # Todolist
     class Todolist
       include TypeHelpers
-      attr_accessor :app_url, :bucket, :created_at, :creator, :description_attachments, :id, :inherits_status, :name, :parent, :status, :title, :type, :updated_at, :url, :visible_to_clients, :app_todos_url, :bookmark_url, :boosts_count, :boosts_url, :comments_count, :comments_url, :completed, :completed_ratio, :description, :groups_url, :position, :subscription_url, :todos_url
+      attr_accessor :app_url, :bubble_up_url, :bucket, :created_at, :creator, :description_attachments, :id, :inherits_status, :name, :parent, :status, :title, :type, :updated_at, :url, :visible_to_clients, :app_todos_url, :bookmark_url, :boosts_count, :boosts_url, :comments_count, :comments_url, :completed, :completed_ratio, :description, :groups_url, :position, :subscription_url, :todos_url
 
       # @return [Array<Symbol>]
       def self.required_fields
-        %i[app_url bucket created_at creator description_attachments id inherits_status name parent status title type updated_at url visible_to_clients].freeze
+        %i[app_url bubble_up_url bucket created_at creator description_attachments id inherits_status name parent status title type updated_at url visible_to_clients].freeze
       end
 
       def initialize(data = {})
         @app_url = data["app_url"]
+        @bubble_up_url = data["bubble_up_url"]
         @bucket = parse_type(data["bucket"], "TodoBucket")
         @created_at = parse_datetime(data["created_at"])
         @creator = parse_type(data["creator"], "Person")
@@ -4089,6 +4094,7 @@ def initialize(data = {})
       def to_h
         {
           "app_url" => @app_url,
+          "bubble_up_url" => @bubble_up_url,
           "bucket" => @bucket,
           "created_at" => @created_at,
           "creator" => @creator,
@@ -4127,15 +4133,16 @@ def to_json(*args)
     # TodolistGroup
     class TodolistGroup
       include TypeHelpers
-      attr_accessor :app_url, :bucket, :created_at, :creator, :id, :inherits_status, :name, :parent, :status, :title, :type, :updated_at, :url, :visible_to_clients, :app_todos_url, :bookmark_url, :comments_count, :comments_url, :completed, :completed_ratio, :position, :subscription_url, :todos_url
+      attr_accessor :app_url, :bubble_up_url, :bucket, :created_at, :creator, :id, :inherits_status, :name, :parent, :status, :title, :type, :updated_at, :url, :visible_to_clients, :app_todos_url, :bookmark_url, :comments_count, :comments_url, :completed, :completed_ratio, :position, :subscription_url, :todos_url
 
       # @return [Array<Symbol>]
       def self.required_fields
-        %i[app_url bucket created_at creator id inherits_status name parent status title type updated_at url visible_to_clients].freeze
+        %i[app_url bubble_up_url bucket created_at creator id inherits_status name parent status title type updated_at url visible_to_clients].freeze
       end
 
       def initialize(data = {})
         @app_url = data["app_url"]
+        @bubble_up_url = data["bubble_up_url"]
         @bucket = parse_type(data["bucket"], "TodoBucket")
         @created_at = parse_datetime(data["created_at"])
         @creator = parse_type(data["creator"], "Person")
@@ -4163,6 +4170,7 @@ def initialize(data = {})
       def to_h
         {
           "app_url" => @app_url,
+          "bubble_up_url" => @bubble_up_url,
           "bucket" => @bucket,
           "created_at" => @created_at,
           "creator" => @creator,
diff --git a/ruby/test/basecamp/services/todolists_service_test.rb b/ruby/test/basecamp/services/todolists_service_test.rb
index 52dd580b8..a6e21010f 100644
--- a/ruby/test/basecamp/services/todolists_service_test.rb
+++ b/ruby/test/basecamp/services/todolists_service_test.rb
@@ -36,15 +36,23 @@ def test_list_with_status
     assert_equal "archived", result.first["status"]
   end
 
+  # Uses the canonical fixture rather than a hand-rolled hash: Todolist has a
+  # dozen required members (bubble_up_url among them) and a minimal stub is a
+  # payload BC3 cannot produce. spec/fixtures is validated by
+  # `make check-fixture-coverage`, so this stub cannot drift from the contract.
   def test_get
-    response = { "id" => 2, "name" => "Sprint Tasks", "description_attachments" => [] }
+    response = load_fixture("todolists/get.json")
 
     # Generated service uses /todolists/{id} without .json
     stub_request(:get, %r{https://3\.basecampapi\.com/12345/todolists/\d+$})
       .to_return(status: 200, body: response.to_json, headers: { "Content-Type" => "application/json" })
 
     result = @account.todolists.get(id: 2)
-    assert_equal "Sprint Tasks", result["name"]
+    assert_equal response["name"], result["name"]
+    # bubble_up_url is @required on Todolist: todolists/_todolist.json.jbuilder
+    # renders the shared recording partial with bubbleupable: true
+    # unconditionally, so every projection of this shape carries it.
+    assert result.key?("bubble_up_url"), "required bubble_up_url must be present"
   end
 
   def test_create
diff --git a/spec/api-gaps/recording-bubbleupable-field.md b/spec/api-gaps/recording-bubbleupable-field.md
index 16ed86655..98e781635 100644
--- a/spec/api-gaps/recording-bubbleupable-field.md
+++ b/spec/api-gaps/recording-bubbleupable-field.md
@@ -27,6 +27,17 @@ did not close this. `bubbleupable` appears **nowhere in `doc/api/`** on
 `master` — no documented wire contract exists. Status stays
 `no-json-contract`.
 
+**Not closed by the `bubble_up_url` absorption (2026-07-28):** the SDK now
+models `bubble_up_url` on Todolist, TodolistGroup, Recording, and
+SearchResult, sourced from `recordings/_recording.json.jbuilder`'s
+`local_assigns[:bubbleupable]` branch. That is a **URL**, and its presence is
+decided by the *rendering call site* — `todolists/_todolist` passes
+`bubbleupable: true` unconditionally — not by the current user's eligibility.
+This gap tracks a distinct **boolean** `bubbleupable` field expressing
+per-user eligibility, which still has no wire contract. Presence of
+`bubble_up_url` is not a substitute: it is constant per shape, so it cannot
+answer "can *this* user bubble this up".
+
 ## Why it matters
 
 Without the field, SDK consumers can't pre-compute the eligibility of UI
diff --git a/spec/basecamp.smithy b/spec/basecamp.smithy
index e7524b747..c55a68634 100644
--- a/spec/basecamp.smithy
+++ b/spec/basecamp.smithy
@@ -1536,6 +1536,14 @@ structure Todolist {
   app_url: String
   bookmark_url: String
   subscription_url: String
+
+  /// URL of the Bubble Up record for this recording (BC5 addition). Required:
+  /// `todolists/_todolist.json.jbuilder` renders the shared recording partial
+  /// with `bubbleupable: true` unconditionally, and every list, show, and group
+  /// path renders that partial — so the key is present on every projection of
+  /// this shape.
+  @required
+  bubble_up_url: String
   comments_count: Integer
   comments_url: String
   position: Integer
@@ -1591,6 +1599,14 @@ structure TodolistGroup {
   app_url: String
   bookmark_url: String
   subscription_url: String
+
+  /// URL of the Bubble Up record for this recording (BC5 addition). Required:
+  /// `todolists/_todolist.json.jbuilder` renders the shared recording partial
+  /// with `bubbleupable: true` unconditionally, and every list, show, and group
+  /// path renders that partial — so the key is present on every projection of
+  /// this shape.
+  @required
+  bubble_up_url: String
   comments_count: Integer
   comments_url: String
   position: Integer
@@ -6306,6 +6322,14 @@ structure Recording {
   @required
   app_url: String
   bookmark_url: String
+
+  /// URL of the Bubble Up record for this recording (BC5 addition). Optional
+  /// here because this is a polymorphic projection:
+  /// `recordings/_recording.json.jbuilder` emits the key only when the caller
+  /// passes `local_assigns[:bubbleupable]`, and `todolists/_todolist` is the
+  /// only partial that does. So a Todolist-shaped instance carries it and the
+  /// other recording types do not.
+  bubble_up_url: String
   content: String
   /// Rich-text companion arrays carried through the generic recording
   /// projection (`to_recordable_partial_path` renders the full type-specific
@@ -7973,6 +7997,14 @@ structure SearchResult {
   @required
   app_url: String
   bookmark_url: String
+
+  /// URL of the Bubble Up record for this recording (BC5 addition). Optional
+  /// here because this is a polymorphic projection:
+  /// `recordings/_recording.json.jbuilder` emits the key only when the caller
+  /// passes `local_assigns[:bubbleupable]`, and `todolists/_todolist` is the
+  /// only partial that does. So a Todolist-shaped instance carries it and the
+  /// other recording types do not.
+  bubble_up_url: String
   parent: RecordingParent
   bucket: RecordingBucket
   creator: Person
diff --git a/spec/fixtures/manifest.yaml b/spec/fixtures/manifest.yaml
index b47438233..d69c73655 100644
--- a/spec/fixtures/manifest.yaml
+++ b/spec/fixtures/manifest.yaml
@@ -139,6 +139,14 @@ targets:
     fixture: recordings/get.json
     pointer: ""
     schema: Recording
+  # bubble_up_url is optional on Recording — recordings/_recording.json.jbuilder
+  # emits it only when the caller passes bubbleupable, and todolists/_todolist is
+  # the only partial that does. recordings/get.json is a Message and correctly
+  # omits it, so this Todolist-shaped element is the field-bearing representative.
+  - id: recording-list-todolist
+    fixture: recordings/list.json
+    pointer: "/2"
+    schema: Recording
   - id: todo-get
     fixture: todos/get.json
     pointer: ""
@@ -150,6 +158,15 @@ targets:
     fixture: search/results.json
     pointer: "/0"
     schema: SearchResult
+  # Todolists are searchable (Search::Type::TYPE_FILTER_MAPPING maps
+  # "Todo" => %w[Todo Todolist]) and api_search_result_template_path falls through
+  # to to_recordable_partial_path → todolists/todolist, which passes
+  # bubbleupable: true. So a Todolist search result carries bubble_up_url while
+  # the other result types do not — this is that representative.
+  - id: search-result-todolist
+    fixture: search/results.json
+    pointer: "/3"
+    schema: SearchResult
 
   # Two concrete RichTextAttachment instances (populated elements, not empty
   # arrays) — the only way to cover RichTextAttachment per the concrete-instance
@@ -193,9 +210,9 @@ covered_schemas:
   ClientCorrespondence: [client-correspondence-get]
   ClientReply: [client-reply-get]
   QuestionAnswer: [question-answer-get]
-  Recording: [recording-get]
+  Recording: [recording-get, recording-list-todolist]
   Todo: [todo-get]
-  SearchResult: [search-result-0]
+  SearchResult: [search-result-0, search-result-todolist]
   RichTextAttachment: [richtext-comment-0, richtext-upload-0]
   Gauge: [gauge-get]
   GaugeNeedle: [gauge-needle-get]
diff --git a/spec/fixtures/recordings/list.json b/spec/fixtures/recordings/list.json
index d3460c476..eaf179afc 100644
--- a/spec/fixtures/recordings/list.json
+++ b/spec/fixtures/recordings/list.json
@@ -122,5 +122,55 @@
         "thumbnail_url": "https://3.basecampapi.com/195539477/buckets/2085958499/blobs/BAh7CEkiCGdpZAY6BkVUSSIsZ2lkOi8vYmMzL0FjdGl2ZVN0b3JhZ2U6OkJsb2IvJTA51--pr0j0051/thumbnails/diagram-51.png"
       }
     ]
+  },
+  {
+    "id": 1069479519,
+    "status": "active",
+    "visible_to_clients": false,
+    "created_at": "2022-10-28T15:21:46.169Z",
+    "updated_at": "2022-10-28T15:21:46.169Z",
+    "title": "Hardware",
+    "inherits_status": true,
+    "type": "Todolist",
+    "url": "https://3.basecampapi.com/195539477/buckets/2085958500/todolists/1069479519.json",
+    "app_url": "https://3.basecamp.com/195539477/buckets/2085958500/todolists/1069479519",
+    "bookmark_url": "https://3.basecampapi.com/195539477/my/bookmarks/BAh7CEkiCGdpZAY6BkVUSSIrZ2lkOi8vYmMzL1JlY29yZGluZy8xMDY5NDc5NTE5P2V4cGlyZXNfaW4GOwBUSSIMcHVycG9zZQY7AFRJIg1yZWFkYWJsZQY7AFRJIg9leHBpcmVzX2F0BjsAVDA=--ebab26d1c66e726e17dd785d0e46bfc4e5cba3f5.json",
+    "bubble_up_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479519/bubble_up.json",
+    "parent": {
+      "id": 1069479338,
+      "title": "To-dos",
+      "type": "Todoset",
+      "url": "https://3.basecampapi.com/195539477/buckets/2085958500/todosets/1069479338.json",
+      "app_url": "https://3.basecamp.com/195539477/buckets/2085958500/todosets/1069479338"
+    },
+    "bucket": {
+      "id": 2085958500,
+      "name": "The Leto Locator",
+      "type": "Project"
+    },
+    "creator": {
+      "id": 1049715914,
+      "attachable_sgid": "BAh7CEkiCGdpZAY6BkVUSSIrZ2lkOi8vYmMzL1BlcnNvbi8xMDQ5NzE1OTE0P2V4cGlyZXNfaW4GOwBUSSIMcHVycG9zZQY7AFRJIg9hdHRhY2hhYmxlBjsAVEkiD2V4cGlyZXNfYXQGOwBUMA==--aabbccdd",
+      "name": "Victor Cooper",
+      "email_address": "victor@honchodesign.com",
+      "personable_type": "User",
+      "title": "Chief Strategist",
+      "bio": "Don't let your dreams be dreams",
+      "location": "Chicago, IL",
+      "created_at": "2022-11-22T08:23:21.732Z",
+      "updated_at": "2022-11-22T08:23:21.732Z",
+      "admin": true,
+      "owner": true,
+      "client": false,
+      "employee": true,
+      "time_zone": "America/Chicago",
+      "avatar_url": "https://3.basecamp-static.com/195539477/people/BAhpBMpkkT4=--avatar",
+      "company": {
+        "id": 1033447817,
+        "name": "Honcho Design"
+      },
+      "can_manage_projects": true,
+      "can_manage_people": true
+    }
   }
 ]
diff --git a/spec/fixtures/search/results.json b/spec/fixtures/search/results.json
index f69b67ce3..1716fdeb9 100644
--- a/spec/fixtures/search/results.json
+++ b/spec/fixtures/search/results.json
@@ -188,5 +188,54 @@
         "thumbnail_url": "https://3.basecampapi.com/195539477/buckets/2085958499/blobs/BAh7CEkiCGdpZAY6BkVUSSIsZ2lkOi8vYmMzL0FjdGl2ZVN0b3JhZ2U6OkJsb2IvJTA32--pr0j0032/thumbnails/diagram-32.png"
       }
     ]
+  },
+  {
+    "id": 1069479519,
+    "status": "active",
+    "visible_to_clients": false,
+    "created_at": "2022-10-29T10:30:00.000Z",
+    "updated_at": "2022-10-29T10:30:00.000Z",
+    "title": "Hardware",
+    "inherits_status": true,
+    "type": "Todolist",
+    "url": "https://3.basecampapi.com/195539477/buckets/2085958500/todolists/1069479519.json",
+    "app_url": "https://3.basecamp.com/195539477/buckets/2085958500/todolists/1069479519",
+    "bookmark_url": "https://3.basecampapi.com/195539477/my/bookmarks/BAh7CEkiCGdpZAY6BkVUSSIrZ2lkOi8vYmMzL1JlY29yZGluZy8xMDY5NDc5NTE5P2V4cGlyZXNfaW4GOwBUSSIMcHVycG9zZQY7AFRJIg1yZWFkYWJsZQY7AFRJIg9leHBpcmVzX2F0BjsAVDA=--ebab26d1c66e726e17dd785d0e46bfc4e5cba3f5.json",
+    "bubble_up_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479519/bubble_up.json",
+    "content": null,
+    "description": null,
+    "plain_text_description": "Everything that has to ship before the <mark class=\"circled-text\"><span></span>Leto</mark> launch.",
+    "parent": {
+      "id": 1069479338,
+      "title": "To-dos",
+      "type": "Todoset",
+      "url": "https://3.basecampapi.com/195539477/buckets/2085958500/todosets/1069479338.json",
+      "app_url": "https://3.basecamp.com/195539477/buckets/2085958500/todosets/1069479338"
+    },
+    "bucket": {
+      "id": 2085958500,
+      "name": "The Leto Locator",
+      "type": "Project"
+    },
+    "creator": {
+      "id": 1049715915,
+      "attachable_sgid": "BAh7CEkiCGdpZAY6BkVUSSIrZ2lkOi8vYmMzL1BlcnNvbi8xMDQ5NzE1OTE1P2V4cGlyZXNfaW4GOwBUSSIMcHVycG9zZQY7AFRJIg9hdHRhY2hhYmxlBjsAVEkiD2V4cGlyZXNfYXQGOwBUMA==--aeb392ebf54ffd820e45f27add22bae3a8c7da56",
+      "name": "Annie Bryan",
+      "email_address": "annie@honchodesign.com",
+      "personable_type": "User",
+      "title": "Central Markets Manager",
+      "bio": "To open a store is easy, to keep it open is an art",
+      "location": null,
+      "created_at": "2022-11-22T08:23:21.911Z",
+      "updated_at": "2022-11-22T08:23:21.911Z",
+      "admin": false,
+      "owner": false,
+      "client": false,
+      "employee": true,
+      "time_zone": "America/Chicago",
+      "avatar_url": "https://3.basecamp-static.com/195539477/people/BAhpBMtkkT4=--avatar",
+      "can_manage_projects": true,
+      "can_manage_people": true
+    }
   }
 ]
diff --git a/spec/fixtures/todolist_groups/get.json b/spec/fixtures/todolist_groups/get.json
index 1536bea1e..44d8909af 100644
--- a/spec/fixtures/todolist_groups/get.json
+++ b/spec/fixtures/todolist_groups/get.json
@@ -11,6 +11,7 @@
   "app_url": "https://3.basecamp.com/195539477/buckets/2085958500/todolists/1069479600",
   "bookmark_url": "https://3.basecampapi.com/195539477/my/bookmarks/BAh7CEkiCGdpZAY6BkVUSSIrZ2lkOi8vYmMzL1JlY29yZGluZy8xMDY5NDc5NjAwP2V4cGlyZXNfaW4GOwBUSSIMcHVycG9zZQY7AFRJIg1yZWFkYWJsZQY7AFRJIg9leHBpcmVzX2F0BjsAVDA=--f1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0.json",
   "subscription_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479600/subscription.json",
+  "bubble_up_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479600/bubble_up.json",
   "comments_count": 0,
   "comments_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479600/comments.json",
   "position": 1,
diff --git a/spec/fixtures/todolist_groups/list.json b/spec/fixtures/todolist_groups/list.json
index b608a0430..6efde70bc 100644
--- a/spec/fixtures/todolist_groups/list.json
+++ b/spec/fixtures/todolist_groups/list.json
@@ -12,6 +12,7 @@
     "app_url": "https://3.basecamp.com/195539477/buckets/2085958500/todolists/1069479600",
     "bookmark_url": "https://3.basecampapi.com/195539477/my/bookmarks/BAh7CEkiCGdpZAY6BkVUSSIrZ2lkOi8vYmMzL1JlY29yZGluZy8xMDY5NDc5NjAwP2V4cGlyZXNfaW4GOwBUSSIMcHVycG9zZQY7AFRJIg1yZWFkYWJsZQY7AFRJIg9leHBpcmVzX2F0BjsAVDA=--f1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0.json",
     "subscription_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479600/subscription.json",
+    "bubble_up_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479600/bubble_up.json",
     "comments_count": 0,
     "comments_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479600/comments.json",
     "position": 1,
@@ -70,6 +71,7 @@
     "app_url": "https://3.basecamp.com/195539477/buckets/2085958500/todolists/1069479601",
     "bookmark_url": "https://3.basecampapi.com/195539477/my/bookmarks/BAh7CEkiCGdpZAY6BkVUSSIrZ2lkOi8vYmMzL1JlY29yZGluZy8xMDY5NDc5NjAxP2V4cGlyZXNfaW4GOwBUSSIMcHVycG9zZQY7AFRJIg1yZWFkYWJsZQY7AFRJIg9leHBpcmVzX2F0BjsAVDA=--a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0.json",
     "subscription_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479601/subscription.json",
+    "bubble_up_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479601/bubble_up.json",
     "comments_count": 0,
     "comments_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479601/comments.json",
     "position": 2,
diff --git a/spec/fixtures/todolists/get.json b/spec/fixtures/todolists/get.json
index eee40ebf8..e38bd4831 100644
--- a/spec/fixtures/todolists/get.json
+++ b/spec/fixtures/todolists/get.json
@@ -11,6 +11,7 @@
   "app_url": "https://3.basecamp.com/195539477/buckets/2085958500/todolists/1069479519",
   "bookmark_url": "https://3.basecampapi.com/195539477/my/bookmarks/BAh7CEkiCGdpZAY6BkVUSSIrZ2lkOi8vYmMzL1JlY29yZGluZy8xMDY5NDc5NTE5P2V4cGlyZXNfaW4GOwBUSSIMcHVycG9zZQY7AFRJIg1yZWFkYWJsZQY7AFRJIg9leHBpcmVzX2F0BjsAVDA=--ebab26d1c66e726e17dd785d0e46bfc4e5cba3f5.json",
   "subscription_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479519/subscription.json",
+  "bubble_up_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479519/bubble_up.json",
   "comments_count": 0,
   "comments_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479519/comments.json",
   "position": 1,
diff --git a/spec/fixtures/todolists/list.json b/spec/fixtures/todolists/list.json
index fd33019db..b2cd2c95b 100644
--- a/spec/fixtures/todolists/list.json
+++ b/spec/fixtures/todolists/list.json
@@ -12,6 +12,7 @@
     "app_url": "https://3.basecamp.com/195539477/buckets/2085958500/todolists/1069479519",
     "bookmark_url": "https://3.basecampapi.com/195539477/my/bookmarks/BAh7CEkiCGdpZAY6BkVUSSIrZ2lkOi8vYmMzL1JlY29yZGluZy8xMDY5NDc5NTE5P2V4cGlyZXNfaW4GOwBUSSIMcHVycG9zZQY7AFRJIg1yZWFkYWJsZQY7AFRJIg9leHBpcmVzX2F0BjsAVDA=--ebab26d1c66e726e17dd785d0e46bfc4e5cba3f5.json",
     "subscription_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479519/subscription.json",
+    "bubble_up_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479519/bubble_up.json",
     "comments_count": 0,
     "comments_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479519/comments.json",
     "position": 1,
@@ -73,6 +74,7 @@
     "app_url": "https://3.basecamp.com/195539477/buckets/2085958500/todolists/1069479522",
     "bookmark_url": "https://3.basecampapi.com/195539477/my/bookmarks/BAh7CEkiCGdpZAY6BkVUSSIrZ2lkOi8vYmMzL1JlY29yZGluZy8xMDY5NDc5NTIyP2V4cGlyZXNfaW4GOwBUSSIMcHVycG9zZQY7AFRJIg1yZWFkYWJsZQY7AFRJIg9leHBpcmVzX2F0BjsAVDA=--c4e2c9d5b4c3a2b1e0f9d8c7b6a5948372615141.json",
     "subscription_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479522/subscription.json",
+    "bubble_up_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479522/bubble_up.json",
     "comments_count": 0,
     "comments_url": "https://3.basecampapi.com/195539477/buckets/2085958500/recordings/1069479522/comments.json",
     "position": 2,
diff --git a/spec/overlays/examples.smithy b/spec/overlays/examples.smithy
index 9e62f1f5f..400ce6ef6 100644
--- a/spec/overlays/examples.smithy
+++ b/spec/overlays/examples.smithy
@@ -15,6 +15,7 @@ apply GetTodolistOrGroup @examples([
       title: "Launch Tasks", inherits_status: true, type: "Todolist", description_attachments: [],
       url: "https://3.basecampapi.com/999/buckets/12345678/todolists/987654.json",
       app_url: "https://3.basecamp.com/999/buckets/12345678/todolists/987654",
+      bubble_up_url: "https://3.basecampapi.com/999/buckets/12345678/recordings/987654/bubble_up.json",
       creator: { id: 1, name: "Someone", created_at: "2025-01-01T00:00:00Z", updated_at: "2025-01-01T00:00:00Z" },
       bucket: { id: 12345678, name: "My Project", type: "Project" },
       parent: { id: 99999, title: "To-dos", type: "Todoset", url: "https://3.basecampapi.com/999/buckets/12345678/todosets/99999.json", app_url: "https://3.basecamp.com/999/buckets/12345678/todosets/99999" }
@@ -30,6 +31,7 @@ apply GetTodolistOrGroup @examples([
       title: "Q1 Milestones", inherits_status: true, type: "TodolistGroup",
       url: "https://3.basecampapi.com/999/buckets/12345678/todolists/111222.json",
       app_url: "https://3.basecamp.com/999/buckets/12345678/todolists/111222",
+      bubble_up_url: "https://3.basecampapi.com/999/buckets/12345678/recordings/111222/bubble_up.json",
       creator: { id: 1, name: "Someone", created_at: "2025-01-01T00:00:00Z", updated_at: "2025-01-01T00:00:00Z" },
       bucket: { id: 12345678, name: "My Project", type: "Project" },
       parent: { id: 99999, title: "To-dos", type: "Todoset", url: "https://3.basecampapi.com/999/buckets/12345678/todosets/99999.json", app_url: "https://3.basecamp.com/999/buckets/12345678/todosets/99999" }
diff --git a/swift/Sources/Basecamp/Generated/Models/Recording.swift b/swift/Sources/Basecamp/Generated/Models/Recording.swift
index 9ae7b5a61..14df3ed13 100644
--- a/swift/Sources/Basecamp/Generated/Models/Recording.swift
+++ b/swift/Sources/Basecamp/Generated/Models/Recording.swift
@@ -17,6 +17,7 @@ public struct Recording: Codable, Sendable {
     public var bookmarkUrl: String?
     public var boostsCount: Int32?
     public var boostsUrl: String?
+    public var bubbleUpUrl: String?
     public var category: RecordingCategory?
     public var commentsCount: Int32?
     public var commentsUrl: String?
@@ -50,6 +51,7 @@ public struct Recording: Codable, Sendable {
         bookmarkUrl: String? = nil,
         boostsCount: Int32? = nil,
         boostsUrl: String? = nil,
+        bubbleUpUrl: String? = nil,
         category: RecordingCategory? = nil,
         commentsCount: Int32? = nil,
         commentsUrl: String? = nil,
@@ -82,6 +84,7 @@ public struct Recording: Codable, Sendable {
         self.bookmarkUrl = bookmarkUrl
         self.boostsCount = boostsCount
         self.boostsUrl = boostsUrl
+        self.bubbleUpUrl = bubbleUpUrl
         self.category = category
         self.commentsCount = commentsCount
         self.commentsUrl = commentsUrl
diff --git a/swift/Sources/Basecamp/Generated/Models/SearchResult.swift b/swift/Sources/Basecamp/Generated/Models/SearchResult.swift
index 00e7f155b..580cf7628 100644
--- a/swift/Sources/Basecamp/Generated/Models/SearchResult.swift
+++ b/swift/Sources/Basecamp/Generated/Models/SearchResult.swift
@@ -10,6 +10,7 @@ public struct SearchResult: Codable, Sendable {
     public let type: String
     public let url: String
     public var bookmarkUrl: String?
+    public var bubbleUpUrl: String?
     public var bucket: RecordingBucket?
     public var contentAttachments: [RichTextAttachment]?
     public var createdAt: String?
@@ -33,6 +34,7 @@ public struct SearchResult: Codable, Sendable {
         type: String,
         url: String,
         bookmarkUrl: String? = nil,
+        bubbleUpUrl: String? = nil,
         bucket: RecordingBucket? = nil,
         contentAttachments: [RichTextAttachment]? = nil,
         createdAt: String? = nil,
@@ -55,6 +57,7 @@ public struct SearchResult: Codable, Sendable {
         self.type = type
         self.url = url
         self.bookmarkUrl = bookmarkUrl
+        self.bubbleUpUrl = bubbleUpUrl
         self.bucket = bucket
         self.contentAttachments = contentAttachments
         self.createdAt = createdAt
@@ -79,6 +82,7 @@ public struct SearchResult: Codable, Sendable {
         case type
         case url
         case bookmarkUrl
+        case bubbleUpUrl
         case bucket
         case contentAttachments
         case createdAt
@@ -104,6 +108,7 @@ public struct SearchResult: Codable, Sendable {
         self.type = try container.decode(String.self, forKey: .type)
         self.url = try container.decode(String.self, forKey: .url)
         self.bookmarkUrl = try container.decodeIfPresent(String.self, forKey: .bookmarkUrl)
+        self.bubbleUpUrl = try container.decodeIfPresent(String.self, forKey: .bubbleUpUrl)
         self.bucket = try container.decodeIfPresent(RecordingBucket.self, forKey: .bucket)
         self.contentAttachments = try container.decodeIfPresent([RichTextAttachment].self, forKey: .contentAttachments)
         self.createdAt = try container.decodeIfPresent(String.self, forKey: .createdAt)
@@ -129,6 +134,7 @@ public struct SearchResult: Codable, Sendable {
         try container.encode(self.type, forKey: .type)
         try container.encode(self.url, forKey: .url)
         try container.encodeIfPresent(self.bookmarkUrl, forKey: .bookmarkUrl)
+        try container.encodeIfPresent(self.bubbleUpUrl, forKey: .bubbleUpUrl)
         try container.encodeIfPresent(self.bucket, forKey: .bucket)
         try container.encodeIfPresent(self.contentAttachments, forKey: .contentAttachments)
         try container.encodeIfPresent(self.createdAt, forKey: .createdAt)
diff --git a/swift/Sources/Basecamp/Generated/Models/Todolist.swift b/swift/Sources/Basecamp/Generated/Models/Todolist.swift
index b597878e7..ef25c506e 100644
--- a/swift/Sources/Basecamp/Generated/Models/Todolist.swift
+++ b/swift/Sources/Basecamp/Generated/Models/Todolist.swift
@@ -3,6 +3,7 @@ import Foundation
 
 public struct Todolist: Codable, Sendable {
     public let appUrl: String
+    public let bubbleUpUrl: String
     public let bucket: TodoBucket
     public let createdAt: String
     public let creator: Person
@@ -33,6 +34,7 @@ public struct Todolist: Codable, Sendable {
 
     public init(
         appUrl: String,
+        bubbleUpUrl: String,
         bucket: TodoBucket,
         createdAt: String,
         creator: Person,
@@ -62,6 +64,7 @@ public struct Todolist: Codable, Sendable {
         todosUrl: String? = nil
     ) {
         self.appUrl = appUrl
+        self.bubbleUpUrl = bubbleUpUrl
         self.bucket = bucket
         self.createdAt = createdAt
         self.creator = creator
diff --git a/swift/Sources/Basecamp/Generated/Models/TodolistGroup.swift b/swift/Sources/Basecamp/Generated/Models/TodolistGroup.swift
index 6ce534571..dfc34c984 100644
--- a/swift/Sources/Basecamp/Generated/Models/TodolistGroup.swift
+++ b/swift/Sources/Basecamp/Generated/Models/TodolistGroup.swift
@@ -3,6 +3,7 @@ import Foundation
 
 public struct TodolistGroup: Codable, Sendable {
     public let appUrl: String
+    public let bubbleUpUrl: String
     public let bucket: TodoBucket
     public let createdAt: String
     public let creator: Person
@@ -28,6 +29,7 @@ public struct TodolistGroup: Codable, Sendable {
 
     public init(
         appUrl: String,
+        bubbleUpUrl: String,
         bucket: TodoBucket,
         createdAt: String,
         creator: Person,
@@ -52,6 +54,7 @@ public struct TodolistGroup: Codable, Sendable {
         todosUrl: String? = nil
     ) {
         self.appUrl = appUrl
+        self.bubbleUpUrl = bubbleUpUrl
         self.bucket = bucket
         self.createdAt = createdAt
         self.creator = creator
diff --git a/typescript/src/generated/metadata.ts b/typescript/src/generated/metadata.ts
index 73c364b33..682354f42 100644
--- a/typescript/src/generated/metadata.ts
+++ b/typescript/src/generated/metadata.ts
@@ -37,7 +37,7 @@ export interface MetadataOutput {
 const metadata: MetadataOutput = {
   "$schema": "https://basecamp.com/schemas/sdk-metadata.json",
   "version": "1.0.0",
-  "generated": "2026-07-28T06:50:06.535Z",
+  "generated": "2026-07-28T07:10:08.052Z",
   "operations": {
     "GetAccount": {
       "retry": {
diff --git a/typescript/src/generated/openapi-stripped.json b/typescript/src/generated/openapi-stripped.json
index 616adad5f..13d9cf347 100644
--- a/typescript/src/generated/openapi-stripped.json
+++ b/typescript/src/generated/openapi-stripped.json
@@ -17278,6 +17278,7 @@
                           "description_attachments": [],
                           "url": "https://3.basecampapi.com/999/buckets/12345678/todolists/987654.json",
                           "app_url": "https://3.basecamp.com/999/buckets/12345678/todolists/987654",
+                          "bubble_up_url": "https://3.basecampapi.com/999/buckets/12345678/recordings/987654/bubble_up.json",
                           "creator": {
                             "id": 1,
                             "name": "Someone",
@@ -17317,6 +17318,7 @@
                           "type": "TodolistGroup",
                           "url": "https://3.basecampapi.com/999/buckets/12345678/todolists/111222.json",
                           "app_url": "https://3.basecamp.com/999/buckets/12345678/todolists/111222",
+                          "bubble_up_url": "https://3.basecampapi.com/999/buckets/12345678/recordings/111222/bubble_up.json",
                           "creator": {
                             "id": 1,
                             "name": "Someone",
@@ -26099,6 +26101,10 @@
           "bookmark_url": {
             "type": "string"
           },
+          "bubble_up_url": {
+            "type": "string",
+            "description": "URL of the Bubble Up record for this recording (BC5 addition). Optional\nhere because this is a polymorphic projection:\n`recordings/_recording.json.jbuilder` emits the key only when the caller\npasses `local_assigns[:bubbleupable]`, and `todolists/_todolist` is the\nonly partial that does. So a Todolist-shaped instance carries it and the\nother recording types do not."
+          },
           "content": {
             "type": "string"
           },
@@ -26802,6 +26808,10 @@
           "bookmark_url": {
             "type": "string"
           },
+          "bubble_up_url": {
+            "type": "string",
+            "description": "URL of the Bubble Up record for this recording (BC5 addition). Optional\nhere because this is a polymorphic projection:\n`recordings/_recording.json.jbuilder` emits the key only when the caller\npasses `local_assigns[:bubbleupable]`, and `todolists/_todolist` is the\nonly partial that does. So a Todolist-shaped instance carries it and the\nother recording types do not."
+          },
           "parent": {
             "$ref": "#/components/schemas/RecordingParent"
           },
@@ -27672,6 +27682,10 @@
           "subscription_url": {
             "type": "string"
           },
+          "bubble_up_url": {
+            "type": "string",
+            "description": "URL of the Bubble Up record for this recording (BC5 addition). Required:\n`todolists/_todolist.json.jbuilder` renders the shared recording partial\nwith `bubbleupable: true` unconditionally, and every list, show, and group\npath renders that partial — so the key is present on every projection of\nthis shape."
+          },
           "comments_count": {
             "type": "integer",
             "format": "int32"
@@ -27729,6 +27743,7 @@
         },
         "required": [
           "app_url",
+          "bubble_up_url",
           "bucket",
           "created_at",
           "creator",
@@ -27796,6 +27811,10 @@
           "subscription_url": {
             "type": "string"
           },
+          "bubble_up_url": {
+            "type": "string",
+            "description": "URL of the Bubble Up record for this recording (BC5 addition). Required:\n`todolists/_todolist.json.jbuilder` renders the shared recording partial\nwith `bubbleupable: true` unconditionally, and every list, show, and group\npath renders that partial — so the key is present on every projection of\nthis shape."
+          },
           "comments_count": {
             "type": "integer",
             "format": "int32"
@@ -27834,6 +27853,7 @@
         },
         "required": [
           "app_url",
+          "bubble_up_url",
           "bucket",
           "created_at",
           "creator",
diff --git a/typescript/src/generated/schema.d.ts b/typescript/src/generated/schema.d.ts
index 8775fb936..731eca8fd 100644
--- a/typescript/src/generated/schema.d.ts
+++ b/typescript/src/generated/schema.d.ts
@@ -4494,6 +4494,15 @@ export interface components {
             url: string;
             app_url: string;
             bookmark_url?: string;
+            /**
+             * @description URL of the Bubble Up record for this recording (BC5 addition). Optional
+             *     here because this is a polymorphic projection:
+             *     `recordings/_recording.json.jbuilder` emits the key only when the caller
+             *     passes `local_assigns[:bubbleupable]`, and `todolists/_todolist` is the
+             *     only partial that does. So a Todolist-shaped instance carries it and the
+             *     other recording types do not.
+             */
+            bubble_up_url?: string;
             content?: string;
             /**
              * @description Rich-text companion arrays carried through the generic recording
@@ -4750,6 +4759,15 @@ export interface components {
             url: string;
             app_url: string;
             bookmark_url?: string;
+            /**
+             * @description URL of the Bubble Up record for this recording (BC5 addition). Optional
+             *     here because this is a polymorphic projection:
+             *     `recordings/_recording.json.jbuilder` emits the key only when the caller
+             *     passes `local_assigns[:bubbleupable]`, and `todolists/_todolist` is the
+             *     only partial that does. So a Todolist-shaped instance carries it and the
+             *     other recording types do not.
+             */
+            bubble_up_url?: string;
             parent?: components["schemas"]["RecordingParent"];
             bucket?: components["schemas"]["RecordingBucket"];
             creator?: components["schemas"]["Person"];
@@ -5111,6 +5129,14 @@ export interface components {
             app_url: string;
             bookmark_url?: string;
             subscription_url?: string;
+            /**
+             * @description URL of the Bubble Up record for this recording (BC5 addition). Required:
+             *     `todolists/_todolist.json.jbuilder` renders the shared recording partial
+             *     with `bubbleupable: true` unconditionally, and every list, show, and group
+             *     path renders that partial — so the key is present on every projection of
+             *     this shape.
+             */
+            bubble_up_url: string;
             /** Format: int32 */
             comments_count?: number;
             comments_url?: string;
@@ -5145,6 +5171,14 @@ export interface components {
             app_url: string;
             bookmark_url?: string;
             subscription_url?: string;
+            /**
+             * @description URL of the Bubble Up record for this recording (BC5 addition). Required:
+             *     `todolists/_todolist.json.jbuilder` renders the shared recording partial
+             *     with `bubbleupable: true` unconditionally, and every list, show, and group
+             *     path renders that partial — so the key is present on every projection of
+             *     this shape.
+             */
+            bubble_up_url: string;
             /** Format: int32 */
             comments_count?: number;
             comments_url?: string;
diff --git a/typescript/tests/services/todolists.test.ts b/typescript/tests/services/todolists.test.ts
index bb268096a..cd363eb09 100644
--- a/typescript/tests/services/todolists.test.ts
+++ b/typescript/tests/services/todolists.test.ts
@@ -41,6 +41,11 @@ describe("TodolistsService", () => {
       const todolist = await client.todolists.get(id);
       expect(todolist.id).toBe(id);
       expect(todolist.name).toBe(todolistFixture.name);
+      // bubble_up_url is @required on Todolist: todolists/_todolist.json.jbuilder
+      // renders the shared recording partial with bubbleupable: true
+      // unconditionally, so every projection of this shape carries it. The stub
+      // is the canonical fixture, so this also proves the fixture carries it.
+      expect(todolist.bubble_up_url).toBeDefined();
     });
 
     it("should throw not_found for missing todolist", async () => {