diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index c70396482..0b16b4779 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -28,7 +28,7 @@ $ git push
 * 定期使用项目仓库内容更新自己仓库内容。
 
 ```bash
-$ git remote add upstream https://github.com/Wechat-Group/WxJava
+$ git remote add upstream https://github.com/binarywang/WxJava
 $ git fetch upstream
 $ git checkout develop
 $ git rebase upstream/develop
diff --git a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/apache/DefaultApacheHttpClientBuilder.java b/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/apache/DefaultApacheHttpClientBuilder.java
index 4c06f5168..12f04ba20 100644
--- a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/apache/DefaultApacheHttpClientBuilder.java
+++ b/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/apache/DefaultApacheHttpClientBuilder.java
@@ -59,7 +59,7 @@ public class DefaultApacheHttpClientBuilder implements ApacheHttpClientBuilder {
    * 设置为负数是使用系统默认设置(非3000ms的默认值,而是httpClient的默认设置).
    * </p>
    */
-  private int connectionRequestTimeout = -1;
+  private int connectionRequestTimeout = 3000;
 
   /**
    * 建立链接的超时时间,默认为5000ms.由于是在链接池获取链接,此设置应该并不起什么作用
diff --git a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/bean/WxCpAgentWorkBench.java b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/bean/WxCpAgentWorkBench.java
index 906d25373..2a3e4448b 100644
--- a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/bean/WxCpAgentWorkBench.java
+++ b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/bean/WxCpAgentWorkBench.java
@@ -13,7 +13,6 @@ import me.chanjar.weixin.cp.constant.WxCpConsts;
 
 import java.io.Serializable;
 import java.util.List;
-import java.util.Set;
 
 /**
  * The type Wx cp agent work bench.
diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/WxPayUnifiedOrderV3Request.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/WxPayUnifiedOrderV3Request.java
index 98dae388e..8ac588de8 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/WxPayUnifiedOrderV3Request.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/WxPayUnifiedOrderV3Request.java
@@ -250,6 +250,12 @@ public class WxPayUnifiedOrderV3Request implements Serializable {
      */
     @SerializedName(value = "openid")
     private String openid;
+
+    /**
+     * 实名支付用户身份标识
+     */
+    @SerializedName(value = "identity")
+    private Identity identity;
   }
 
   @Data
@@ -572,4 +578,36 @@ public class WxPayUnifiedOrderV3Request implements Serializable {
     @SerializedName(value = "profit_sharing")
     private Boolean profitSharing;
   }
+
+
+  @Data
+  @NoArgsConstructor
+  public static class Identity implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 证件类型
+     * IDCARD:身份证
+     * HONGKONG_MACAO:港澳回乡证
+     * HONGKONG_MACAO_RESIDENT:港澳居住证
+     * TAIWAN_RESIDENT:台湾居住证
+     * FOREIGN_RESIDENT:外国人永居证
+     * OVERSEA_PASSPORT:护照
+     */
+    @SerializedName(value = "type")
+    private String type;
+    /**
+     * 证件号
+     * 证件号，如身份证号。
+     * 示例值：43102119910910512X
+     */
+    @SerializedName(value = "number")
+    private String number;
+    /**
+     * 证件姓名。
+     * 示例值：周星星
+     */
+    @SerializedName(value = "name")
+    private String name;
+  }
 }
diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/config/WxPayConfig.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/config/WxPayConfig.java
index dedbc6413..7a14ea152 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/config/WxPayConfig.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/config/WxPayConfig.java
@@ -347,10 +347,14 @@ public class WxPayConfig {
   }
 
   private Verifier getVerifier(PrivateKey merchantPrivateKey, WxPayHttpProxy wxPayHttpProxy, PublicKey publicKey) {
-    Verifier certificatesVerifier = new AutoUpdateCertificatesVerifier(
-      new WxPayCredentials(mchId, new PrivateKeySigner(certSerialNo, merchantPrivateKey)),
-      this.getApiV3Key().getBytes(StandardCharsets.UTF_8), this.getCertAutoUpdateTime(),
-      this.getPayBaseUrl(), wxPayHttpProxy);
+    Verifier certificatesVerifier = null;
+    // 如果配置了平台证书，则初始化验证器以备v2版本接口验签（公钥灰度实现）
+    if (this.getPrivateCertPath() != null && this.getPrivateKeyPath() != null) {
+      certificatesVerifier = new AutoUpdateCertificatesVerifier(
+        new WxPayCredentials(mchId, new PrivateKeySigner(certSerialNo, merchantPrivateKey)),
+        this.getApiV3Key().getBytes(StandardCharsets.UTF_8), this.getCertAutoUpdateTime(),
+        this.getPayBaseUrl(), wxPayHttpProxy);
+    }
     if (publicKey != null) {
       Verifier publicCertificatesVerifier = new PublicCertificateVerifier(publicKey, publicKeyId);
       publicCertificatesVerifier.setOtherVerifier(certificatesVerifier);
diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/BaseWxPayServiceImpl.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/BaseWxPayServiceImpl.java
index 077562f03..05d1f8c22 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/BaseWxPayServiceImpl.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/BaseWxPayServiceImpl.java
@@ -323,14 +323,13 @@ public abstract class BaseWxPayServiceImpl implements WxPayService {
       log.debug("微信支付异步通知请求参数：{}", xmlData);
       WxPayOrderNotifyResult result = WxPayOrderNotifyResult.fromXML(xmlData);
       if (signType == null) {
-        String configKey = this.getConfigKey(result.getMchId(), result.getAppid());
+        this.switchover(result.getMchId(), result.getAppid());
         if (result.getSignType() != null) {
           // 如果解析的通知对象中signType有值，则使用它进行验签
           signType = result.getSignType();
-        } else if (configMap.get(configKey).getSignType() != null) {
+        } else if (this.getConfig().getSignType() != null) {
           // 如果配置中signType有值，则使用它进行验签
-          signType = configMap.get(configKey).getSignType();
-          this.switchover(result.getMchId(), result.getAppid());
+          signType = this.getConfig().getSignType();
         }
       }
 
diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/v3/auth/PublicCertificateVerifier.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/v3/auth/PublicCertificateVerifier.java
index 45f76818c..8c9c4f356 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/v3/auth/PublicCertificateVerifier.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/v3/auth/PublicCertificateVerifier.java
@@ -24,7 +24,7 @@ public class PublicCertificateVerifier implements Verifier{
 
     @Override
     public boolean verify(String serialNumber, byte[] message, String signature) {
-        if (!serialNumber.contains("PUB_KEY_ID")) {
+        if (!serialNumber.contains("PUB_KEY_ID") && this.certificateVerifier != null) {
             return this.certificateVerifier.verify(serialNumber, message, signature);
         }
         try {