diff --git a/Entity/Item/Item.cs b/Entity/Item/Item.cs
index 16e52b1..65d971d 100644
--- a/Entity/Item/Item.cs
+++ b/Entity/Item/Item.cs
@@ -332,11 +332,11 @@ namespace Milimoe.FunGame.Core.Entity
         /// 局外（库存）使用物品触发
         /// </summary>
         /// <returns></returns>
-        public bool UseItem(Dictionary<string, object> args)
+        public bool UseItem(User user, Dictionary<string, object> args)
         {
             if (User != null)
             {
-                bool result = OnItemUsed(args);
+                bool result = OnItemUsed(user, args);
                 if (result)
                 {
                     EntityState = EntityState.Modified;
@@ -378,9 +378,10 @@ namespace Milimoe.FunGame.Core.Entity
         /// <summary>
         /// 当物品被玩家使用时
         /// </summary>
+        /// <param name="user"></param>
         /// <param name="args"></param>
         /// <returns></returns>
-        protected virtual bool OnItemUsed(Dictionary<string, object> args)
+        protected virtual bool OnItemUsed(User user, Dictionary<string, object> args)
         {
             return false;
         }
diff --git a/Entity/Skill/Effect.cs b/Entity/Skill/Effect.cs
index 7e01802..4b01e7c 100644
--- a/Entity/Skill/Effect.cs
+++ b/Entity/Skill/Effect.cs
@@ -337,9 +337,10 @@ namespace Milimoe.FunGame.Core.Entity
         /// <summary>
         /// 对目标触发技能效果
         /// </summary>
+        /// <param name="user"></param>
         /// <param name="targets"></param>
         /// <param name="others"></param>
-        public virtual void OnSkillCasted(List<Character> targets, Dictionary<string, object> others)
+        public virtual void OnSkillCasted(User user, List<Character> targets, Dictionary<string, object> others)
         {
 
         }
diff --git a/Entity/Skill/Skill.cs b/Entity/Skill/Skill.cs
index fa184b8..705822b 100644
--- a/Entity/Skill/Skill.cs
+++ b/Entity/Skill/Skill.cs
@@ -415,12 +415,13 @@ namespace Milimoe.FunGame.Core.Entity
         /// <summary>
         /// 对目标触发技能效果
         /// </summary>
+        /// <param name="user"></param>
         /// <param name="targets"></param>
-        public void OnSkillCasted(List<Character> targets)
+        public void OnSkillCasted(User user, List<Character> targets)
         {
             foreach (Effect e in Effects)
             {
-                e.OnSkillCasted(targets, Values);
+                e.OnSkillCasted(user, targets, Values);
             }
         }
 
diff --git a/FunGame.Core.csproj b/FunGame.Core.csproj
index 9b983df..86c2ff2 100644
--- a/FunGame.Core.csproj
+++ b/FunGame.Core.csproj
@@ -8,8 +8,8 @@
 		<BaseOutputPath>bin\</BaseOutputPath>
 		<Company>$(Author)</Company>
 		<Authors>Project Redbud</Authors>
-		<AssemblyVersion>1.0.0</AssemblyVersion>
-		<FileVersion>1.0.0</FileVersion>
+		<AssemblyVersion>2.0.0</AssemblyVersion>
+		<FileVersion>2.0.0</FileVersion>
 		<PackageOutputPath>bin</PackageOutputPath>
 		<Title>FunGame Core</Title>
 		<RootNamespace>Milimoe.$(MSBuildProjectName.Replace(" ", "_"))</RootNamespace>
@@ -48,7 +48,8 @@
 		<PackageLicenseExpression>LGPL-3.0-or-later</PackageLicenseExpression>
 		<PackageRequireLicenseAcceptance>True</PackageRequireLicenseAcceptance>
 		<PackageReadmeFile>README.md</PackageReadmeFile>
-    <VersionPrefix>1.0.0</VersionPrefix>
+		<VersionPrefix>2.0.0-dev</VersionPrefix>
+		<VersionSuffix Condition="'$(VersionSuffix)' == ''">$([System.DateTime]::Now.ToString("MMdd"))</VersionSuffix>
 	</PropertyGroup>
 
 	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
diff --git a/Library/Constant/FunGameInfo.cs b/Library/Constant/FunGameInfo.cs
index 6eb9cd4..1b1bd95 100644
--- a/Library/Constant/FunGameInfo.cs
+++ b/Library/Constant/FunGameInfo.cs
@@ -38,9 +38,9 @@
         public const string FunGame_Desktop = "FunGame Desktop";
         public const string FunGame_Server = "FunGame Server Console";
 
-        public const int FunGame_Version_Major = 1;
+        public const int FunGame_Version_Major = 2;
         public const int FunGame_Version_Minor = 0;
-        public const string FunGame_VersionPatch = "0";
+        public const string FunGame_VersionPatch = "0-dev";
         public const string FunGame_Version_Build = "";
 
         public const string FunGameCoreTitle = @"  _____ _   _ _   _  ____    _    __  __ _____    ____ ___  ____  _____