diff --git a/exercises/04.router/03.problem.race-conditions/ui/index.js b/exercises/04.router/03.problem.race-conditions/ui/index.js
index e8cd5e0..80ccbe1 100644
--- a/exercises/04.router/03.problem.race-conditions/ui/index.js
+++ b/exercises/04.router/03.problem.race-conditions/ui/index.js
@@ -32,7 +32,7 @@ function Root() {
 	// 🐨 create a latestNav ref here which you can initialize to null if you like
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentPromise, setContentPromise] = useState(initialContentPromise)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	const location = useDeferredValue(nextLocation)
 
@@ -65,7 +65,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise),
diff --git a/exercises/04.router/03.solution.race-conditions/ui/index.js b/exercises/04.router/03.solution.race-conditions/ui/index.js
index 5e500d2..9c162b7 100644
--- a/exercises/04.router/03.solution.race-conditions/ui/index.js
+++ b/exercises/04.router/03.solution.race-conditions/ui/index.js
@@ -31,7 +31,7 @@ function Root() {
 	const latestNav = useRef(null)
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentPromise, setContentPromise] = useState(initialContentPromise)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	const location = useDeferredValue(nextLocation)
 
@@ -64,7 +64,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise),
diff --git a/exercises/04.router/04.problem.history/ui/index.js b/exercises/04.router/04.problem.history/ui/index.js
index c82fd02..dbd26da 100644
--- a/exercises/04.router/04.problem.history/ui/index.js
+++ b/exercises/04.router/04.problem.history/ui/index.js
@@ -33,7 +33,7 @@ function Root() {
 	const latestNav = useRef(null)
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentPromise, setContentPromise] = useState(initialContentPromise)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	const location = useDeferredValue(nextLocation)
 
@@ -76,7 +76,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise),
diff --git a/exercises/04.router/04.solution.history/ui/index.js b/exercises/04.router/04.solution.history/ui/index.js
index 7d417de..6f4899e 100644
--- a/exercises/04.router/04.solution.history/ui/index.js
+++ b/exercises/04.router/04.solution.history/ui/index.js
@@ -32,7 +32,7 @@ function Root() {
 	const latestNav = useRef(null)
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentPromise, setContentPromise] = useState(initialContentPromise)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	const location = useDeferredValue(nextLocation)
 
@@ -79,7 +79,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise),
diff --git a/exercises/04.router/05.problem.cache/ui/index.js b/exercises/04.router/05.problem.cache/ui/index.js
index 35c6052..f97700a 100644
--- a/exercises/04.router/05.problem.cache/ui/index.js
+++ b/exercises/04.router/05.problem.cache/ui/index.js
@@ -43,7 +43,7 @@ function Root() {
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	// 🐨 change this to contentKey
 	const [contentPromise, setContentPromise] = useState(initialContentPromise)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	const location = useDeferredValue(nextLocation)
 	// 🐨 get the contentPromise from the contentCache by the contentKey
@@ -102,7 +102,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise),
diff --git a/exercises/04.router/05.solution.cache/ui/index.js b/exercises/04.router/05.solution.cache/ui/index.js
index 5b5cb1a..607e37d 100644
--- a/exercises/04.router/05.solution.cache/ui/index.js
+++ b/exercises/04.router/05.solution.cache/ui/index.js
@@ -41,7 +41,7 @@ function Root() {
 	const contentCache = useContentCache()
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentKey, setContentKey] = useState(initialContentKey)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	const location = useDeferredValue(nextLocation)
 	const contentPromise = contentCache.get(contentKey)
@@ -96,7 +96,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise),
diff --git a/exercises/05.actions/01.problem.action-reference/ui/index.js b/exercises/05.actions/01.problem.action-reference/ui/index.js
index 5b5cb1a..607e37d 100644
--- a/exercises/05.actions/01.problem.action-reference/ui/index.js
+++ b/exercises/05.actions/01.problem.action-reference/ui/index.js
@@ -41,7 +41,7 @@ function Root() {
 	const contentCache = useContentCache()
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentKey, setContentKey] = useState(initialContentKey)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	const location = useDeferredValue(nextLocation)
 	const contentPromise = contentCache.get(contentKey)
@@ -96,7 +96,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise),
diff --git a/exercises/05.actions/01.solution.action-reference/ui/index.js b/exercises/05.actions/01.solution.action-reference/ui/index.js
index 5b5cb1a..607e37d 100644
--- a/exercises/05.actions/01.solution.action-reference/ui/index.js
+++ b/exercises/05.actions/01.solution.action-reference/ui/index.js
@@ -41,7 +41,7 @@ function Root() {
 	const contentCache = useContentCache()
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentKey, setContentKey] = useState(initialContentKey)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	const location = useDeferredValue(nextLocation)
 	const contentPromise = contentCache.get(contentKey)
@@ -96,7 +96,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise),
diff --git a/exercises/05.actions/02.problem.client/ui/index.js b/exercises/05.actions/02.problem.client/ui/index.js
index b615a2c..def1ee5 100644
--- a/exercises/05.actions/02.problem.client/ui/index.js
+++ b/exercises/05.actions/02.problem.client/ui/index.js
@@ -52,7 +52,7 @@ function Root() {
 	const contentCache = useContentCache()
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentKey, setContentKey] = useState(initialContentKey)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	const location = useDeferredValue(nextLocation)
 	const contentPromise = contentCache.get(contentKey)
@@ -107,7 +107,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise),
diff --git a/exercises/05.actions/02.solution.client/ui/index.js b/exercises/05.actions/02.solution.client/ui/index.js
index 9397518..5262ec0 100644
--- a/exercises/05.actions/02.solution.client/ui/index.js
+++ b/exercises/05.actions/02.solution.client/ui/index.js
@@ -53,7 +53,7 @@ function Root() {
 	const contentCache = useContentCache()
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentKey, setContentKey] = useState(initialContentKey)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	const location = useDeferredValue(nextLocation)
 	const contentPromise = contentCache.get(contentKey)
@@ -108,7 +108,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise),
diff --git a/exercises/05.actions/03.problem.server/ui/index.js b/exercises/05.actions/03.problem.server/ui/index.js
index bb0d758..52a9ea2 100644
--- a/exercises/05.actions/03.problem.server/ui/index.js
+++ b/exercises/05.actions/03.problem.server/ui/index.js
@@ -53,7 +53,7 @@ function Root() {
 	const contentCache = useContentCache()
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentKey, setContentKey] = useState(initialContentKey)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	const location = useDeferredValue(nextLocation)
 	const contentPromise = contentCache.get(contentKey)
@@ -108,7 +108,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		// 🐨 the contentPromise is now an object with a root property, update this
diff --git a/exercises/05.actions/03.solution.server/ui/index.js b/exercises/05.actions/03.solution.server/ui/index.js
index 7cb9ace..63b0980 100644
--- a/exercises/05.actions/03.solution.server/ui/index.js
+++ b/exercises/05.actions/03.solution.server/ui/index.js
@@ -53,7 +53,7 @@ function Root() {
 	const contentCache = useContentCache()
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentKey, setContentKey] = useState(initialContentKey)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	const location = useDeferredValue(nextLocation)
 	const contentPromise = contentCache.get(contentKey)
@@ -108,7 +108,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise).root,
diff --git a/exercises/05.actions/04.problem.revalidation/ui/index.js b/exercises/05.actions/04.problem.revalidation/ui/index.js
index 753e4c8..1fd0067 100644
--- a/exercises/05.actions/04.problem.revalidation/ui/index.js
+++ b/exercises/05.actions/04.problem.revalidation/ui/index.js
@@ -80,7 +80,7 @@ function Root() {
 	const contentCache = useContentCache()
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentKey, setContentKey] = useState(initialContentKey)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	// 🐨 add a useEffect here that reassigns updateContentKey to a function that
 	// accepts a newContentKey and calls setContentKey(newContentKey) in a startTransition
@@ -141,7 +141,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise).root,
diff --git a/exercises/05.actions/04.solution.revalidation/ui/index.js b/exercises/05.actions/04.solution.revalidation/ui/index.js
index ddb7ac5..e6c869e 100644
--- a/exercises/05.actions/04.solution.revalidation/ui/index.js
+++ b/exercises/05.actions/04.solution.revalidation/ui/index.js
@@ -73,7 +73,7 @@ function Root() {
 	const contentCache = useContentCache()
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentKey, setContentKey] = useState(initialContentKey)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	// set the updateContentKey function in a useEffect to avoid issues with
 	// concurrent rendering (useDeferredValue will create throw-away renders).
@@ -136,7 +136,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise).root,
diff --git a/exercises/05.actions/05.problem.history-revalidation/ui/index.js b/exercises/05.actions/05.problem.history-revalidation/ui/index.js
index 015cbdc..a0b0a84 100644
--- a/exercises/05.actions/05.problem.history-revalidation/ui/index.js
+++ b/exercises/05.actions/05.problem.history-revalidation/ui/index.js
@@ -73,7 +73,7 @@ function Root() {
 	const contentCache = useContentCache()
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentKey, setContentKey] = useState(initialContentKey)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	// set the updateContentKey function in a useEffect to avoid issues with
 	// concurrent rendering (useDeferredValue will create throw-away renders).
@@ -145,7 +145,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise).root,
diff --git a/exercises/05.actions/05.solution.history-revalidation/ui/index.js b/exercises/05.actions/05.solution.history-revalidation/ui/index.js
index a1bc355..c4c835f 100644
--- a/exercises/05.actions/05.solution.history-revalidation/ui/index.js
+++ b/exercises/05.actions/05.solution.history-revalidation/ui/index.js
@@ -73,7 +73,7 @@ function Root() {
 	const contentCache = useContentCache()
 	const [nextLocation, setNextLocation] = useState(getGlobalLocation)
 	const [contentKey, setContentKey] = useState(initialContentKey)
-	const [isPending, startTransition] = useTransition()
+	const [, startTransition] = useTransition()
 
 	// set the updateContentKey function in a useEffect to avoid issues with
 	// concurrent rendering (useDeferredValue will create throw-away renders).
@@ -142,7 +142,6 @@ function Root() {
 				navigate,
 				location,
 				nextLocation,
-				isPending,
 			},
 		},
 		use(contentPromise).root,