diff --git a/test/test.tsl b/test/test.tsl
index a145ac3..9a19ae0 100644
--- a/test/test.tsl
+++ b/test/test.tsl
@@ -1,13 +1,22 @@
 // SYNTAX TEST "tsl"
 
-// 字符串，数字，注释
 // 注释 TODO
-// abc();
-a := "string"; // 字符串
-b := 123; // 数字
-c := 1.23; // 浮点数
-a := "字符串函数func()";
+// TODO: 注释
+{aaaaa TODO}
+(* abcdef *)
 
+// 数字
+num6 := 123; // 数字
+num7 := 1.23; // 浮点数
+num1 := 0xAF123;
+num2 := 0O12357;
+num3 := 0B010111;
+num4 := 1.2e-12;
+num5 := +3E15;
+
+// 字符串
+string1 := '123';
+string2 := "func2()";
 
 // 类相关
 type MyClass = class
@@ -44,7 +53,8 @@ data.items.count;
 // 函数声明
 function f();                    // 无参数
 function f(a, b);               // 参数无类型
-function f(a: real; b: DD); // 参数有类型
+function f(a: real; b: DD); // 参数有类型1
+function f(a: real, b: DD); // 参数有类型2
 function f(a: real = 1; b: string = "123"; c: number = abc.CONST1): def; // 带返回类型
 
 // 函数调用
diff --git a/vscode/CHANGELOG.md b/vscode/CHANGELOG.md
index 8f8c52d..48656c9 100644
--- a/vscode/CHANGELOG.md
+++ b/vscode/CHANGELOG.md
@@ -14,6 +14,11 @@ Notable changes to the `TSL` extension will be documented in thio file.
   - `tsl.server.arguments`: `tsl-server`的启动参数
   - `tsl.interpreter.executable`: `tsl`解释器的路径
 
+## [2.3.0]: 2025-08-29
+
+- 支持`begin|else|do|then`等换行增加缩进
+- 支持`end`等换行减少缩进
+
 ## [2.2.0]: 2025-07-02
 
 - 代码重构
diff --git a/vscode/language-configuration.json b/vscode/language-configuration.json
index 75fa918..c335dc9 100644
--- a/vscode/language-configuration.json
+++ b/vscode/language-configuration.json
@@ -22,15 +22,9 @@
     ["\"", "\""],
     ["'", "'"]
   ],
-  "folding": {
-    "markers": {
-      "start": "^\\s*\\{\\s*$",
-      "end": "^\\s*\\}\\s*$"
-    }
-  },
   "wordPattern": "\\b[a-zA-Z_][a-zA-Z0-9_]*\\b",
   "indentationRules": {
-    "increaseIndentPattern": "^.*(\\{[^}\"']*|\\([^)\"']*|\\[[^\\]\"']*)$",
-    "decreaseIndentPattern": "^(.*\\*\\/)?\\s*[\\}\\]\\)].*$"
+    "increaseIndentPattern": "^.*\\b([Bb][Ee][Gg][Ii][Nn]|[Dd][Oo]|[Tt][Hh][Ee][Nn]|[Ee][Ll][Ss][Ee])\\b.*$",
+    "decreaseIndentPattern": "^\\s*\\b([Ee][Nn][Dd])\\b.*$"
   }
 }
diff --git a/vscode/package-lock.json b/vscode/package-lock.json
index e9a957c..44e318e 100644
--- a/vscode/package-lock.json
+++ b/vscode/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "tsl-devkit",
-  "version": "2.2.0",
+  "version": "2.3.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "tsl-devkit",
-      "version": "2.2.0",
+      "version": "2.3.0",
       "license": "AGPL-3.0-or-later",
       "dependencies": {
         "vscode-languageclient": "^9.0.1"
diff --git a/vscode/package.json b/vscode/package.json
index cc4936b..3ce1f91 100644
--- a/vscode/package.json
+++ b/vscode/package.json
@@ -1,7 +1,7 @@
 {
   "name": "tsl-tools",
   "displayName": "TSL",
-  "version": "2.3.1",
+  "version": "2.3.0",
   "description": "VSCode extension for TSL, with syntax highlighting, code completion, and formatting",
   "publisher": "csh",
   "homepage": "https://git.mytsl.cn/csh/tsl-devkit",
diff --git a/vscode/src/extension.ts b/vscode/src/extension.ts
index 0ed8fd8..60edfcd 100644
--- a/vscode/src/extension.ts
+++ b/vscode/src/extension.ts
@@ -45,10 +45,18 @@ export function activate(context: vscode.ExtensionContext) {
     vscode.window.showErrorMessage(
       "Cannot find tsl-server. Please install it globally or include it in your extension's server directory."
     )
-  } else {
-    const serverOptions: ServerOptions = {
-      run: {command: serverExe, transport: TransportKind.stdio, args: serverArguments},
-      debug: {command: serverExe, transport: TransportKind.stdio, args: serverArguments}
+    return
+  }
+
+  const serverOptions: ServerOptions = {
+    run: {command: serverExe, transport: TransportKind.stdio, args: ['--log=trace', '--log-stderr']},
+    debug: {command: serverExe, transport: TransportKind.stdio, args: ['--log=trace', '--log-stderr']}
+  }
+
+  const clientOptions: LanguageClientOptions = {
+    documentSelector: [{scheme: 'file', language: 'tsl'}],
+    synchronize: {
+      fileEvents: vscode.workspace.createFileSystemWatcher('**/*.tsl')
     }
 
     const clientOptions: LanguageClientOptions = {
diff --git a/vscode/tsl-devkit-2.3.0.vsix b/vscode/tsl-devkit-2.3.0.vsix
new file mode 100644
index 0000000..4820576
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diff --git a/vscode/tsl-tools-2.3.1.vsix b/vscode/tsl-tools-2.3.1.vsix
deleted file mode 100644
index 66844b5..0000000
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