diff --git a/packages/query-core/src/__tests__/onlineManager.test.tsx b/packages/query-core/src/__tests__/onlineManager.test.tsx
index 9d4ab713b0..d9219e0197 100644
--- a/packages/query-core/src/__tests__/onlineManager.test.tsx
+++ b/packages/query-core/src/__tests__/onlineManager.test.tsx
@@ -157,6 +157,20 @@ describe('onlineManager', () => {
     unsubscribe2()
   })
 
+  it('should update online status from window online and offline events', () => {
+    const unsubscribe = onlineManager.subscribe(() => undefined)
+
+    expect(onlineManager.isOnline()).toBe(true)
+
+    window.dispatchEvent(new Event('offline'))
+    expect(onlineManager.isOnline()).toBe(false)
+
+    window.dispatchEvent(new Event('online'))
+    expect(onlineManager.isOnline()).toBe(true)
+
+    unsubscribe()
+  })
+
   it('should call listeners when setOnline is called', () => {
     const listener = vi.fn()
 
diff --git a/packages/query-core/src/__tests__/queryCache.test.tsx b/packages/query-core/src/__tests__/queryCache.test.tsx
index 1238bcf44a..c404c1f942 100644
--- a/packages/query-core/src/__tests__/queryCache.test.tsx
+++ b/packages/query-core/src/__tests__/queryCache.test.tsx
@@ -380,6 +380,22 @@ describe('queryCache', () => {
     })
   })
 
+  describe('QueryCache.remove', () => {
+    it('should only delete the instance currently stored under its queryHash', () => {
+      const key = queryKey()
+
+      const staleQuery = queryCache.build(queryClient, { queryKey: key })
+      queryCache.remove(staleQuery)
+
+      const currentQuery = queryCache.build(queryClient, { queryKey: key })
+      expect(currentQuery).not.toBe(staleQuery)
+
+      queryCache.remove(staleQuery)
+
+      expect(queryCache.get(hashKey(key))).toBe(currentQuery)
+    })
+  })
+
   describe('QueryCache.add', () => {
     it('should not try to add a query already added to the cache', async () => {
       const key = queryKey()
diff --git a/packages/query-core/src/__tests__/queryObserver.test.tsx b/packages/query-core/src/__tests__/queryObserver.test.tsx
index c814314da1..315c37b160 100644
--- a/packages/query-core/src/__tests__/queryObserver.test.tsx
+++ b/packages/query-core/src/__tests__/queryObserver.test.tsx
@@ -1294,22 +1294,28 @@ describe('queryObserver', () => {
     unsubscribe()
   })
 
-  it('shouldFetchOnWindowFocus should respect refetchOnWindowFocus option', () => {
+  it('shouldFetchOnWindowFocus should return true when refetchOnWindowFocus is true', () => {
     const key = queryKey()
 
-    const observer1 = new QueryObserver(queryClient, {
+    const observer = new QueryObserver(queryClient, {
       queryKey: key,
       queryFn: () => 'data',
       refetchOnWindowFocus: true,
     })
-    expect(observer1.shouldFetchOnWindowFocus()).toBe(true)
 
-    const observer2 = new QueryObserver(queryClient, {
+    expect(observer.shouldFetchOnWindowFocus()).toBe(true)
+  })
+
+  it('shouldFetchOnWindowFocus should return false when refetchOnWindowFocus is false', () => {
+    const key = queryKey()
+
+    const observer = new QueryObserver(queryClient, {
       queryKey: key,
       queryFn: () => 'data',
       refetchOnWindowFocus: false,
     })
-    expect(observer2.shouldFetchOnWindowFocus()).toBe(false)
+
+    expect(observer.shouldFetchOnWindowFocus()).toBe(false)
   })
 
   it('fetchOptimistic should fetch and return optimistic result', async () => {
@@ -1462,6 +1468,24 @@ describe('queryObserver', () => {
     queryClient2.clear()
   })
 
+  it('should not reject promise when experimental_prefetchInRender is enabled', async () => {
+    const key = queryKey()
+    const observer = new QueryObserver(queryClient, {
+      queryKey: key,
+      queryFn: () => sleep(10).then(() => 'data'),
+    })
+
+    const unsubscribe = observer.subscribe(() => undefined)
+    const tracked = observer.trackResult(observer.getCurrentResult())
+    const promise = tracked.promise
+
+    await vi.advanceTimersByTimeAsync(10)
+
+    await expect(promise).resolves.toBe('data')
+
+    unsubscribe()
+  })
+
   it('should not refetchOnMount when set to "always" when staleTime is Static', async () => {
     const key = queryKey()
     const queryFn = vi.fn(() => 'data')