diff --git a/Extensions/FreeSql.Extensions.BaseEntity/FreeSql.Extensions.BaseEntity.csproj b/Extensions/FreeSql.Extensions.BaseEntity/FreeSql.Extensions.BaseEntity.csproj
index 7fa794b1..6d7c5219 100644
--- a/Extensions/FreeSql.Extensions.BaseEntity/FreeSql.Extensions.BaseEntity.csproj
+++ b/Extensions/FreeSql.Extensions.BaseEntity/FreeSql.Extensions.BaseEntity.csproj
@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <TargetFrameworks>netstandard2.0</TargetFrameworks>
-        <Version>0.8.5</Version>
+        <Version>0.8.6</Version>
         <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
         <Authors>YeXiangQin</Authors>
         <Description>BaseEntity 是一种极简单的 CodeFirst 开发方式，特别对单表或多表CRUD，利用继承节省了每个实体类的重复属性（创建时间、ID等字段），软件删除等功能，进行 crud 操作时不必时常考虑仓储的使用.</Description>
diff --git a/Extensions/FreeSql.Extensions.LazyLoading/FreeSql.Extensions.LazyLoading.csproj b/Extensions/FreeSql.Extensions.LazyLoading/FreeSql.Extensions.LazyLoading.csproj
index 5ad41619..a2c9977e 100644
--- a/Extensions/FreeSql.Extensions.LazyLoading/FreeSql.Extensions.LazyLoading.csproj
+++ b/Extensions/FreeSql.Extensions.LazyLoading/FreeSql.Extensions.LazyLoading.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-		<Version>0.8.5</Version>
+		<Version>0.8.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 扩展包，可实现【延时加载】属性.</Description>
diff --git a/FreeSql.DbContext/DbSet/DbSetAsync.cs b/FreeSql.DbContext/DbSet/DbSetAsync.cs
index 0bad6548..c80ccf72 100644
--- a/FreeSql.DbContext/DbSet/DbSetAsync.cs
+++ b/FreeSql.DbContext/DbSet/DbSetAsync.cs
@@ -285,7 +285,7 @@ namespace FreeSql
             if (flagExists == false)
             {
                 var olddata = await OrmSelect(data).FirstAsync();
-                if (olddata == null) flagExists = false;
+                flagExists = olddata != null;
             }
 
             if (flagExists == true && CanUpdate(data, false))
diff --git a/FreeSql.DbContext/DbSet/DbSetSync.cs b/FreeSql.DbContext/DbSet/DbSetSync.cs
index ff404f54..8a1f1ae0 100644
--- a/FreeSql.DbContext/DbSet/DbSetSync.cs
+++ b/FreeSql.DbContext/DbSet/DbSetSync.cs
@@ -326,7 +326,7 @@ namespace FreeSql
             if (flagExists == false)
             {
                 var olddata = OrmSelect(data).First();
-                if (olddata == null) flagExists = false;
+                flagExists = olddata != null;
             }
 
             if (flagExists == true && CanUpdate(data, false))
diff --git a/FreeSql.DbContext/FreeSql.DbContext.csproj b/FreeSql.DbContext/FreeSql.DbContext.csproj
index 49e5689b..6afc0aed 100644
--- a/FreeSql.DbContext/FreeSql.DbContext.csproj
+++ b/FreeSql.DbContext/FreeSql.DbContext.csproj
@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-        <Version>0.8.5</Version>
+        <Version>0.8.6</Version>
         <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
         <Authors>YeXiangQin</Authors>
         <Description>FreeSql is the most convenient ORM in dotnet. It supports Mysql, Postgresql, SqlServer, Oracle and Sqlite.</Description>
diff --git a/FreeSql.Repository/FreeSql.Repository.csproj b/FreeSql.Repository/FreeSql.Repository.csproj
index c619fa87..27e9da59 100644
--- a/FreeSql.Repository/FreeSql.Repository.csproj
+++ b/FreeSql.Repository/FreeSql.Repository.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-		<Version>0.8.5</Version>
+		<Version>0.8.6</Version>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql Implementation of General Repository, Support MySql/SqlServer/PostgreSQL/Oracle/Sqlite, and read/write separation、and split table.</Description>
 		<PackageProjectUrl>https://github.com/2881099/FreeSql/wiki/Repository</PackageProjectUrl>
diff --git a/FreeSql/FreeSql.csproj b/FreeSql/FreeSql.csproj
index 6cbdc646..c11d65d0 100644
--- a/FreeSql/FreeSql.csproj
+++ b/FreeSql/FreeSql.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-		<Version>0.8.5</Version>
+		<Version>0.8.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql is the most convenient ORM in dotnet. It supports Mysql, Postgresql, SqlServer, Oracle and Sqlite.</Description>
diff --git a/Providers/FreeSql.Provider.MySql/FreeSql.Provider.MySql.csproj b/Providers/FreeSql.Provider.MySql/FreeSql.Provider.MySql.csproj
index 292ba9b1..98fe9d85 100644
--- a/Providers/FreeSql.Provider.MySql/FreeSql.Provider.MySql.csproj
+++ b/Providers/FreeSql.Provider.MySql/FreeSql.Provider.MySql.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net452</TargetFrameworks>
-		<Version>0.8.5</Version>
+		<Version>0.8.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 数据库实现，基于 MySql 5.6</Description>
diff --git a/Providers/FreeSql.Provider.MySqlConnector/FreeSql.Provider.MySqlConnector.csproj b/Providers/FreeSql.Provider.MySqlConnector/FreeSql.Provider.MySqlConnector.csproj
index 71124f9b..d7c2bb49 100644
--- a/Providers/FreeSql.Provider.MySqlConnector/FreeSql.Provider.MySqlConnector.csproj
+++ b/Providers/FreeSql.Provider.MySqlConnector/FreeSql.Provider.MySqlConnector.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-		<Version>0.8.5</Version>
+		<Version>0.8.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 数据库实现，基于 MySql 5.6</Description>
diff --git a/Providers/FreeSql.Provider.Oracle/FreeSql.Provider.Oracle.csproj b/Providers/FreeSql.Provider.Oracle/FreeSql.Provider.Oracle.csproj
index b47a9358..2ca3797c 100644
--- a/Providers/FreeSql.Provider.Oracle/FreeSql.Provider.Oracle.csproj
+++ b/Providers/FreeSql.Provider.Oracle/FreeSql.Provider.Oracle.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-		<Version>0.8.5</Version>
+		<Version>0.8.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 数据库实现，基于 Oracle 11</Description>
diff --git a/Providers/FreeSql.Provider.PostgreSQL/FreeSql.Provider.PostgreSQL.csproj b/Providers/FreeSql.Provider.PostgreSQL/FreeSql.Provider.PostgreSQL.csproj
index d19e1215..d2550091 100644
--- a/Providers/FreeSql.Provider.PostgreSQL/FreeSql.Provider.PostgreSQL.csproj
+++ b/Providers/FreeSql.Provider.PostgreSQL/FreeSql.Provider.PostgreSQL.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-		<Version>0.8.5</Version>
+		<Version>0.8.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 数据库实现，基于 PostgreSQL 9.5</Description>
diff --git a/Providers/FreeSql.Provider.SqlServer/FreeSql.Provider.SqlServer.csproj b/Providers/FreeSql.Provider.SqlServer/FreeSql.Provider.SqlServer.csproj
index 554af458..3822600f 100644
--- a/Providers/FreeSql.Provider.SqlServer/FreeSql.Provider.SqlServer.csproj
+++ b/Providers/FreeSql.Provider.SqlServer/FreeSql.Provider.SqlServer.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net451</TargetFrameworks>
-		<Version>0.8.5</Version>
+		<Version>0.8.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 数据库实现，基于 SqlServer 2005+，并根据版本适配分页方法：row_number 或 offset fetch next</Description>
diff --git a/Providers/FreeSql.Provider.Sqlite/FreeSql.Provider.Sqlite.csproj b/Providers/FreeSql.Provider.Sqlite/FreeSql.Provider.Sqlite.csproj
index 07db3243..412f904f 100644
--- a/Providers/FreeSql.Provider.Sqlite/FreeSql.Provider.Sqlite.csproj
+++ b/Providers/FreeSql.Provider.Sqlite/FreeSql.Provider.Sqlite.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-		<Version>0.8.5</Version>
+		<Version>0.8.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 数据库实现，基于 Sqlite 3.0</Description>