diff --git a/CHANGELOG.md b/CHANGELOG.md
index cca2f38..1ad8f3b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+**2024-09-05**
+
+v8.6.0
+
+新增：验证 Qbox, Qiniu 签名的辅助方法
+
+新增：持久化处理，支持闲时任务
+
+更改：对象存储，默认空间管理域名，查询区域主备域名
+
 **2024-08-23**
 
 v8.5.1
diff --git a/src/Qiniu/Qiniu.csproj b/src/Qiniu/Qiniu.csproj
index a166e1a..bd2b8fd 100644
--- a/src/Qiniu/Qiniu.csproj
+++ b/src/Qiniu/Qiniu.csproj
@@ -28,7 +28,7 @@
     <PostBuildEvent>
     </PostBuildEvent>
     <ProjectId>Qiniu</ProjectId>
-    <Version>8.5.1</Version>
+    <Version>8.6.0</Version>
     <Authors>Rong Zhou, Qiniu SDK</Authors>
     <Company>Shanghai Qiniu Information Technology Co., Ltd.</Company>
     <Description>Qiniu Resource (Cloud) Storage SDK for C#</Description>
diff --git a/src/Qiniu/QiniuCSharpSDK.cs b/src/Qiniu/QiniuCSharpSDK.cs
index 65e023a..eef1201 100644
--- a/src/Qiniu/QiniuCSharpSDK.cs
+++ b/src/Qiniu/QiniuCSharpSDK.cs
@@ -37,6 +37,6 @@ public class QiniuCSharpSDK
     /// <summary>
     /// SDK版本号
     /// </summary>
-    public const string VERSION = "8.5.1";
+    public const string VERSION = "8.6.0";
 
 }
diff --git a/src/Qiniu/Storage/Config.cs b/src/Qiniu/Storage/Config.cs
index ecbb803..949f4e9 100644
--- a/src/Qiniu/Storage/Config.cs
+++ b/src/Qiniu/Storage/Config.cs
@@ -14,18 +14,18 @@ public class Config
         /// <summary>
         /// 默认空间管理域名
         /// </summary>
-        public static string DefaultUcHost = "uc.qbox.me";
+        public static string DefaultUcHost = "uc.qiniuapi.com";
         /// <summary>
         /// 默认查询区域域名
         /// </summary>
-        public static string DefaultQueryRegionHost = "kodo-config.qiniuapi.com";
+        public static string DefaultQueryRegionHost = "uc.qiniuapi.com";
         /// <summary>
         /// 默认备用查询区域域名
         /// </summary>
         public static List<string> DefaultBackupQueryRegionHosts = new List<string>
         {
-            "uc.qbox.me",
-            "api.qiniu.com"
+            "kodo-config.qiniuapi.com",
+            "uc.qbox.me"
         };
         
         /// <summary>
diff --git a/src/Qiniu/Storage/OperationManager.cs b/src/Qiniu/Storage/OperationManager.cs
index 8a3b8dd..07bac22 100644
--- a/src/Qiniu/Storage/OperationManager.cs
+++ b/src/Qiniu/Storage/OperationManager.cs
@@ -41,8 +41,17 @@ public OperationManager(Mac mac, Config config)
         /// <param name="pipeline">私有队列</param>
         /// <param name="notifyUrl">通知url</param>
         /// <param name="force">forece参数</param>
+        /// <param name="persistentType">为 1 时开启闲时任务</param>
         /// <returns>pfop操作返回结果，正确返回结果包含persistentId</returns>
-        public PfopResult Pfop(string bucket, string key, string fops, string pipeline, string notifyUrl, bool force)
+        public PfopResult Pfop(
+            string bucket,
+            string key,
+            string fops,
+            string pipeline,
+            string notifyUrl,
+            bool force,
+            int type = 0
+        )
         {
             PfopResult result = new PfopResult();
 
@@ -65,6 +74,10 @@ public PfopResult Pfop(string bucket, string key, string fops, string pipeline,
                 {
                     sb.AppendFormat("&pipeline={0}", pipeline);
                 }
+                if (type > 0)
+                {
+                    sb.AppendFormat("&type={0}", type);
+                }
                 byte[] data = Encoding.UTF8.GetBytes(sb.ToString());
                 string token = auth.CreateManageToken(pfopUrl, data);
 
diff --git a/src/Qiniu/Storage/PfopInfo.cs b/src/Qiniu/Storage/PfopInfo.cs
index f3a95e3..2dfbd0a 100644
--- a/src/Qiniu/Storage/PfopInfo.cs
+++ b/src/Qiniu/Storage/PfopInfo.cs
@@ -13,6 +13,16 @@ public class PfopInfo
         [JsonProperty("id")]
         public string Id;
         /// <summary>
+        /// 任务类型，为 1 代表为闲时任务
+        /// </summary>
+        [JsonProperty("type", NullValueHandling = NullValueHandling.Ignore)]
+        public int? Type;
+        /// <summary>
+        /// 任务创建时间
+        /// </summary>
+        [JsonProperty("creationDate", NullValueHandling = NullValueHandling.Ignore)]
+        public string CreationDate;
+        /// <summary>
         /// 任务结果状态码
         /// </summary>
         [JsonProperty("code")]
diff --git a/src/Qiniu/Storage/PrefopResult.cs b/src/Qiniu/Storage/PrefopResult.cs
index bd248bd..2b5a733 100644
--- a/src/Qiniu/Storage/PrefopResult.cs
+++ b/src/Qiniu/Storage/PrefopResult.cs
@@ -19,7 +19,7 @@ public PfopInfo Result
 
                 if ((Code == (int)HttpCode.OK) && (!string.IsNullOrEmpty(Text)))
                 {
-                   info= JsonConvert.DeserializeObject<PfopInfo>(Text);
+                    info= JsonConvert.DeserializeObject<PfopInfo>(Text);
                 }
                 return info;
             }
diff --git a/src/Qiniu/Storage/PutPolicy.cs b/src/Qiniu/Storage/PutPolicy.cs
index 79be623..715ef64 100644
--- a/src/Qiniu/Storage/PutPolicy.cs
+++ b/src/Qiniu/Storage/PutPolicy.cs
@@ -111,6 +111,13 @@ public class PutPolicy
         [JsonProperty("persistentPipeline", NullValueHandling = NullValueHandling.Ignore)]
         public string PersistentPipeline { get; set; }
 
+        /// <summary>
+        /// [可选]持久化任务类型，为 1 时开启闲时任务
+        /// </summary>
+        [JsonProperty("persistentType", NullValueHandling = NullValueHandling.Ignore)]
+        public int? PersistentType { get; set; }
+
+
         /// <summary>
         /// [可选]上传文件大小限制：最小值，单位Byte
         /// </summary>
diff --git a/src/Qiniu/Util/Signature.cs b/src/Qiniu/Util/Signature.cs
index 02c2aad..915cb65 100644
--- a/src/Qiniu/Util/Signature.cs
+++ b/src/Qiniu/Util/Signature.cs
@@ -200,5 +200,50 @@ public string SignRequestV2(string method, string url, StringDictionary headers,
         {
             return SignRequestV2(method, url, headers, Encoding.UTF8.GetString(body));
         }
+
+        public bool VerifyRequest(
+            string method,
+            string url,
+            StringDictionary headers,
+            string body = null
+        )
+        {
+            byte[] bodyBytes = null;
+            if (!string.IsNullOrEmpty(body)) {
+                bodyBytes = Encoding.UTF8.GetBytes(body);
+            }
+            return VerifyRequest(
+                method,
+                url,
+                headers,
+                bodyBytes
+            );
+        }
+
+        public bool VerifyRequest(
+            string method,
+            string url,
+            StringDictionary headers,
+            byte[] body = null
+        )
+        {
+            if (!headers.ContainsKey("Authorization"))
+            {
+                return false;
+            }
+
+            string authString = headers["Authorization"];
+            if (authString.StartsWith("QBox "))
+            {
+                return authString == "QBox " + SignRequest(url, body);
+            }
+
+            if (authString.StartsWith("Qiniu "))
+            {
+                return authString == "Qiniu " + SignRequestV2(method, url, headers, body);
+            }
+
+            return false;
+        }
     }
 }
diff --git a/src/QiniuTests/Storage/ConfigTests.cs b/src/QiniuTests/Storage/ConfigTests.cs
index 8ea1f67..1215a15 100644
--- a/src/QiniuTests/Storage/ConfigTests.cs
+++ b/src/QiniuTests/Storage/ConfigTests.cs
@@ -11,7 +11,7 @@ public void UcHostTest()
         {
             Config config = new Config();
             string ucHost = config.UcHost();
-            Assert.AreEqual("http://uc.qbox.me", ucHost);
+            Assert.AreEqual("http://uc.qiniuapi.com", ucHost);
             config.SetUcHost("uc.example.com");
             ucHost = config.UcHost();
             Assert.AreEqual("http://uc.example.com", ucHost);
@@ -19,7 +19,7 @@ public void UcHostTest()
             config = new Config();
             config.UseHttps = true;
             ucHost = config.UcHost();
-            Assert.AreEqual("https://uc.qbox.me", ucHost);
+            Assert.AreEqual("https://uc.qiniuapi.com", ucHost);
             config.SetUcHost("uc.example.com");
             ucHost = config.UcHost();
             Assert.AreEqual("https://uc.example.com", ucHost);
diff --git a/src/QiniuTests/Storage/FormUploaderTests.cs b/src/QiniuTests/Storage/FormUploaderTests.cs
index 0eb2a6d..bb145ec 100644
--- a/src/QiniuTests/Storage/FormUploaderTests.cs
+++ b/src/QiniuTests/Storage/FormUploaderTests.cs
@@ -1,6 +1,8 @@
 using NUnit.Framework;
 using Qiniu.Http;
 using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
 using Qiniu.Util;
 using Qiniu.Tests;
 
@@ -80,5 +82,54 @@ public void UploadFileV2Test()
             System.IO.File.Delete(filePath);
         }
 
+        [Test]
+        public void UploadFileWithPersistTypeTest()
+        {
+            Mac mac = new Mac(AccessKey, SecretKey);
+            Random rand = new Random();
+            string key = string.Format("UploadFileTest_{0}.dat", rand.Next());
+
+            string tempPath = System.IO.Path.GetTempPath();
+            int rnd = new Random().Next(1, 100000);
+            string filePath = tempPath + "resumeFile" + rnd.ToString();
+            char[] testBody = new char[4 * 1024 * 1024];
+            System.IO.FileStream stream = new System.IO.FileStream(filePath, System.IO.FileMode.Create);
+            System.IO.StreamWriter sw = new System.IO.StreamWriter(stream, System.Text.Encoding.Default);
+            sw.Write(testBody);
+            sw.Close();
+            stream.Close();
+
+            PutPolicy putPolicy = new PutPolicy();
+            putPolicy.Scope = Bucket + ":" + key;
+            putPolicy.SetExpires(3600);
+            putPolicy.DeleteAfterDays = 1;
+            string saveEntry = Base64.UrlSafeBase64Encode(Bucket + ":pfop-test_avinfo");
+            putPolicy.PersistentOps = "avinfo|saveas/" + saveEntry;
+            putPolicy.PersistentType = 1;
+            string token = Auth.CreateUploadToken(mac, putPolicy.ToJsonString());
+            Config config = new Config();
+            config.Zone = Zone.ZONE_CN_East;
+            config.UseHttps = true;
+            config.UseCdnDomains = true;
+            FormUploader target = new FormUploader(config);
+            PutExtra extra = new PutExtra();
+            extra.Version = "v2";
+            HttpResult result = target.UploadFile(filePath, key, token, extra);
+            Console.WriteLine("form upload result: " + result.ToString());
+            Assert.AreEqual((int)HttpCode.OK, result.Code);
+            System.IO.File.Delete(filePath);
+
+            Dictionary<string, object> dict = JsonConvert.DeserializeObject<Dictionary<string, object>>(result.Text.ToString());
+            Assert.IsTrue(dict.ContainsKey("persistentId"));
+            OperationManager manager = new OperationManager(mac, config);
+            PrefopResult prefopRet = manager.Prefop(dict["persistentId"].ToString());
+            if (prefopRet.Code != (int)HttpCode.OK)
+            {
+                Assert.Fail("prefop error: " + prefopRet.ToString());
+            }
+            Assert.AreEqual(1, prefopRet.Result.Type);
+            Assert.IsNotNull(prefopRet.Result.CreationDate);
+            Assert.IsNotEmpty(prefopRet.Result.CreationDate);
+        }
     }
 }
diff --git a/src/QiniuTests/Storage/OperationManagerTests.cs b/src/QiniuTests/Storage/OperationManagerTests.cs
index 6b26175..3150676 100644
--- a/src/QiniuTests/Storage/OperationManagerTests.cs
+++ b/src/QiniuTests/Storage/OperationManagerTests.cs
@@ -11,23 +11,30 @@ namespace Qiniu.Storage.Tests
     [TestFixture]
     public class OperationManagerTests :TestEnv
     {
+        private OperationManager getOperationManager()
+        {
+            Mac mac = new Mac(AccessKey, SecretKey);
+            Config config = new Config();
+            // config.UseHttps = true;
+
+            OperationManager manager = new OperationManager(mac, config);
+            return manager;
+        }
 
         [Test]
-        public void PfopTest()
+        public void PfopAndPrefopTest()
         {
+            string key = "qiniu.mp4";
+            bool force = true;
+            string pipeline = "sdktest";
+            string notifyUrl = "http://api.example.com/qiniu/pfop/notify";
             string saveMp4Entry = Base64.UrlSafeBase64Encode(Bucket + ":avthumb_test_target.mp4");
             string saveJpgEntry = Base64.UrlSafeBase64Encode(Bucket + ":vframe_test_target.jpg");
             string avthumbMp4Fop = "avthumb/mp4|saveas/" + saveMp4Entry;
             string vframeJpgFop = "vframe/jpg/offset/1|saveas/" + saveJpgEntry;
             string fops = string.Join(";", new string[] { avthumbMp4Fop, vframeJpgFop });
-            Mac mac = new Mac(AccessKey, SecretKey);
-            Config config = new Config();
-            config.UseHttps = true;
-            OperationManager manager = new OperationManager(mac, config);
-            string pipeline = "sdktest";
-            string notifyUrl = "http://api.example.com/qiniu/pfop/notify";
-            string key = "qiniu.mp4";
-            bool force = true;
+
+            OperationManager manager = getOperationManager();
             PfopResult pfopRet = manager.Pfop(Bucket, key, fops, pipeline, notifyUrl, force);
             if (pfopRet.Code != (int)HttpCode.OK)
             {
@@ -42,5 +49,32 @@ public void PfopTest()
             }
             Console.WriteLine(ret.ToString());
         }
+
+        [Test]
+        public void PfopWithIdleTimeTest()
+        {
+            string key = "qiniu.mp4";
+            bool force = true;
+            int type = 1;
+            string pipeline = null;
+            string saveJpgEntry = Base64.UrlSafeBase64Encode(Bucket + ":vframe_test_target.jpg");
+            string vframeJpgFop = "vframe/jpg/offset/1|saveas/" + saveJpgEntry;
+
+            OperationManager manager = getOperationManager();
+            PfopResult pfopRet = manager.Pfop(Bucket, key, vframeJpgFop, pipeline, null, force, type);
+            if (pfopRet.Code != (int)HttpCode.OK)
+            {
+                Assert.Fail("pfop error: " + pfopRet.ToString());
+            }
+
+            PrefopResult prefopRet = manager.Prefop(pfopRet.PersistentId);
+            if (prefopRet.Code != (int)HttpCode.OK)
+            {
+                Assert.Fail("prefop error: " + prefopRet.ToString());
+            }
+            Assert.AreEqual(1, prefopRet.Result.Type);
+            Assert.IsNotNull(prefopRet.Result.CreationDate);
+            Assert.IsNotEmpty(prefopRet.Result.CreationDate);
+        }
     }
 }
diff --git a/src/QiniuTests/Util/Signature.cs b/src/QiniuTests/Util/Signature.cs
index ae5e501..2bbfa75 100644
--- a/src/QiniuTests/Util/Signature.cs
+++ b/src/QiniuTests/Util/Signature.cs
@@ -23,5 +23,13 @@ public string SignatureV2ByBytesTest(string method, string url, StringDictionary
         {
             return string.Format("Qiniu {0}", sign.SignRequestV2(method, url, headers, Encoding.UTF8.GetBytes(body)));
         }
+
+        [TestCaseSource(typeof(VerifyRequestDataClass), nameof(VerifyRequestDataClass.TestCases))]
+        public bool VerifyRequestTest(string method, string url, StringDictionary headers, string body)
+        {
+            Mac mac = new Mac("abcdefghklmnopq", "1234567890");
+            Signature mockSign = new Signature(mac);
+            return mockSign.VerifyRequest(method, url, headers, body);
+        }
     }
 }
\ No newline at end of file
diff --git a/src/QiniuTests/Util/TestCases.cs b/src/QiniuTests/Util/TestCases.cs
index 3a52b62..1914979 100644
--- a/src/QiniuTests/Util/TestCases.cs
+++ b/src/QiniuTests/Util/TestCases.cs
@@ -211,4 +211,36 @@ public static IEnumerable TestCases
             }
         }
     }
-}
\ No newline at end of file
+
+    public class VerifyRequestDataClass
+    {
+        public static IEnumerable TestCases
+        {
+            get
+            {
+                yield return new TestCaseData(
+                    "",
+                    "https://test.qiniu.com/callback",
+                    new StringDictionary
+                    {
+                        {"Authorization", "QBox abcdefghklmnopq:T7F-SjxX7X2zI4Fc1vANiNt1AUE="},
+                        {"Content-Type", "application/x-www-form-urlencoded"}
+                    },
+                    "name=sunflower.jpg&hash=Fn6qeQi4VDLQ347NiRm-RlQx_4O2&location=Shanghai&price=1500.00&uid=123"
+                ).Returns(true);
+
+                yield return new TestCaseData(
+                    "GET",
+                    "https://test.qiniu.com/callback",
+                    new StringDictionary
+                    {
+                        {"Authorization", "Qiniu abcdefghklmnopq:ZqS7EZuAKrhZaEIxqNGxDJi41IQ="},
+                        {"X-Qiniu-Bbb", "BBB"},
+                        {"Content-Type", "application/x-www-form-urlencoded"}
+                    },
+                    "name=sunflower.jpg&hash=Fn6qeQi4VDLQ347NiRm-RlQx_4O2&location=Shanghai&price=1500.00&uid=123"
+                ).Returns(true);
+            }
+        }
+    }
+}