diff --git a/archive/2.0.0a1/README.md b/archive/2.0.0a2/README.md
similarity index 100%
rename from archive/2.0.0a1/README.md
rename to archive/2.0.0a2/README.md
diff --git a/archive/2.0.0a1/api/README.md b/archive/2.0.0a2/api/README.md
similarity index 87%
rename from archive/2.0.0a1/api/README.md
rename to archive/2.0.0a2/api/README.md
index 2fa1066a..1c8acf1b 100644
--- a/archive/2.0.0a1/api/README.md
+++ b/archive/2.0.0a2/api/README.md
@@ -29,3 +29,6 @@
 
 
     * [nonebot.exception](exception.html)
+
+
+    * [nonebot.adapters.cqhttp](adapters/cqhttp.html)
diff --git a/archive/2.0.0a2/api/adapters/README.md b/archive/2.0.0a2/api/adapters/README.md
new file mode 100644
index 00000000..b6529990
--- /dev/null
+++ b/archive/2.0.0a2/api/adapters/README.md
@@ -0,0 +1,41 @@
+---
+contentSidebar: true
+sidebarDepth: 0
+---
+
+# NoneBot.adapters 模块
+
+
+## _class_ `BaseBot`
+
+基类：`abc.ABC`
+
+
+## _class_ `BaseEvent`
+
+基类：`abc.ABC`
+
+
+### `_raw_event`
+
+原始 event
+
+
+## _class_ `BaseMessageSegment`
+
+基类：`abc.ABC`
+
+
+## _class_ `BaseMessage`
+
+基类：`list`, `abc.ABC`
+
+
+### `append(obj)`
+
+Append object to the end of the list.
+
+
+### `extend(obj)`
+
+Extend list by appending elements from the iterable.
diff --git a/archive/2.0.0a2/api/adapters/cqhttp.md b/archive/2.0.0a2/api/adapters/cqhttp.md
new file mode 100644
index 00000000..53fa04f9
--- /dev/null
+++ b/archive/2.0.0a2/api/adapters/cqhttp.md
@@ -0,0 +1,411 @@
+---
+contentSidebar: true
+sidebarDepth: 0
+---
+
+# NoneBot.adapters.cqhttp 模块
+
+## CQHTTP (OneBot) v11 协议适配
+
+协议详情请看: [CQHTTP](http://cqhttp.cc/) | [OneBot](https://github.com/howmanybots/onebot)
+
+
+## `log(level, message)`
+
+
+* **说明**
+
+    用于打印 CQHTTP 日志。
+
+
+
+* **参数**
+
+    
+    * `level: str`: 日志等级
+
+
+    * `message: str`: 日志信息
+
+
+
+## `escape(s, *, escape_comma=True)`
+
+
+* **说明**
+
+    对字符串进行 CQ 码转义。
+
+
+
+* **参数**
+
+    
+    * `s: str`: 需要转义的字符串
+
+
+    * `escape_comma: bool`: 是否转义逗号（`,`）。
+
+
+
+## `unescape(s)`
+
+
+* **说明**
+
+    对字符串进行 CQ 码去转义。
+
+
+
+* **参数**
+
+    
+    * `s: str`: 需要转义的字符串
+
+
+
+## `_b2s(b)`
+
+转换布尔值为字符串。
+
+
+## _async_ `_check_reply(bot, event)`
+
+
+* **说明**
+
+    检查消息中存在的回复，去除并赋值 `event.reply`, `event.to_me`
+
+
+
+* **参数**
+
+    
+    * `bot: Bot`: Bot 对象
+
+
+    * `event: Event`: Event 对象
+
+
+
+## `_check_at_me(bot, event)`
+
+
+* **说明**
+
+    检查消息开头或结尾是否存在 @机器人，去除并赋值 `event.to_me`
+
+
+
+* **参数**
+
+    
+    * `bot: Bot`: Bot 对象
+
+
+    * `event: Event`: Event 对象
+
+
+
+## `_check_nickname(bot, event)`
+
+
+* **说明**
+
+    检查消息开头是否存在，去除并赋值 `event.to_me`
+
+
+
+* **参数**
+
+    
+    * `bot: Bot`: Bot 对象
+
+
+    * `event: Event`: Event 对象
+
+
+
+## `_handle_api_result(result)`
+
+
+* **说明**
+
+    处理 API 请求返回值。
+
+
+
+* **参数**
+
+    
+    * `result: Optional[Dict[str, Any]]`: API 返回数据
+
+
+
+* **返回**
+
+    
+    * `Any`: API 调用返回数据
+
+
+
+* **异常**
+
+    
+    * `ActionFailed`: API 调用失败
+
+
+
+## _class_ `Bot`
+
+基类：[`nonebot.adapters.BaseBot`](#None)
+
+CQHTTP 协议 Bot 适配。继承属性参考 [BaseBot](./#class-basebot) 。
+
+
+### _property_ `type`
+
+
+* 返回: `"cqhttp"`
+
+
+### _async_ `handle_message(message)`
+
+
+* **说明**
+
+    调用 [_check_reply](#async-check-reply-bot-event), [_check_at_me](#check-at-me-bot-event), [_check_nickname](#check-nickname-bot-event) 处理事件并转换为 [Event](#class-event)
+
+
+
+### _async_ `call_api(api, **data)`
+
+
+* **说明**
+
+    调用 CQHTTP 协议 API
+
+
+
+* **参数**
+
+    
+    * `api: str`: API 名称
+
+
+    * `**data: Any`: API 参数
+
+
+
+* **返回**
+
+    
+    * `Any`: API 调用返回数据
+
+
+
+* **异常**
+
+    
+    * `NetworkError`: 网络错误
+
+
+    * `ActionFailed`: API 调用失败
+
+
+
+### _async_ `send(event, message, at_sender=False, **kwargs)`
+
+
+* **说明**
+
+    根据 `event`  向触发事件的主体发送消息。
+
+
+
+* **参数**
+
+    
+    * `event: Event`: Event 对象
+
+
+    * `message: Union[str, Message, MessageSegment]`: 要发送的消息
+
+
+    * `at_sender: bool`: 是否 @ 事件主体
+
+
+    * `**kwargs`: 覆盖默认参数
+
+
+
+* **返回**
+
+    
+    * `Any`: API 调用返回数据
+
+
+
+* **异常**
+
+    
+    * `ValueError`: 缺少 `user_id`, `group_id`
+
+
+    * `NetworkError`: 网络错误
+
+
+    * `ActionFailed`: API 调用失败
+
+
+
+## _class_ `Event`
+
+基类：[`nonebot.adapters.BaseEvent`](#None)
+
+CQHTTP 协议 Event 适配。继承属性参考 [BaseEvent](./#class-baseevent) 。
+
+
+### _property_ `id`
+
+
+* 类型: `Optional[int]`
+
+
+* 说明: 事件/消息 ID
+
+
+### _property_ `name`
+
+
+* 类型: `str`
+
+
+* 说明: 事件名称，由类型与 `.` 组合而成
+
+
+### _property_ `self_id`
+
+
+* 类型: `str`
+
+
+* 说明: 机器人自身 ID
+
+
+### _property_ `time`
+
+
+* 类型: `int`
+
+
+* 说明: 事件发生时间
+
+
+### _property_ `type`
+
+
+* 类型: `str`
+
+
+* 说明: 事件类型
+
+
+### _property_ `detail_type`
+
+
+* 类型: `str`
+
+
+* 说明: 事件详细类型
+
+
+### _property_ `sub_type`
+
+
+* 类型: `str`
+
+
+* 说明: 事件类型
+
+
+### _property_ `user_id`
+
+
+* 类型: `Optional[int]`
+
+
+* 说明: 事件主体 ID
+
+
+### _property_ `group_id`
+
+
+* 类型: `Optional[int]`
+
+
+* 说明: 事件主体群 ID
+
+
+### _property_ `to_me`
+
+
+* 类型: `Optional[bool]`
+
+
+* 说明: 消息是否与机器人相关
+
+
+### _property_ `message`
+
+
+* 类型: `Optional[Message]`
+
+
+* 说明: 消息内容
+
+
+### _property_ `reply`
+
+
+* 类型: `Optional[dict]`
+
+
+* 说明: 回复消息详情
+
+
+### _property_ `raw_message`
+
+
+* 类型: `Optional[str]`
+
+
+* 说明: 原始消息
+
+
+### _property_ `plain_text`
+
+
+* 类型: `Optional[str]`
+
+
+* 说明: 纯文本消息内容
+
+
+### _property_ `sender`
+
+
+* 类型: `Optional[dict]`
+
+
+* 说明: 消息发送者信息
+
+
+## _class_ `MessageSegment`
+
+基类：[`nonebot.adapters.BaseMessageSegment`](#None)
+
+
+## _class_ `Message`
+
+基类：[`nonebot.adapters.BaseMessage`](#None)
diff --git a/archive/2.0.0a1/api/config.md b/archive/2.0.0a2/api/config.md
similarity index 100%
rename from archive/2.0.0a1/api/config.md
rename to archive/2.0.0a2/api/config.md
diff --git a/archive/2.0.0a1/api/exception.md b/archive/2.0.0a2/api/exception.md
similarity index 100%
rename from archive/2.0.0a1/api/exception.md
rename to archive/2.0.0a2/api/exception.md
diff --git a/archive/2.0.0a1/api/log.md b/archive/2.0.0a2/api/log.md
similarity index 100%
rename from archive/2.0.0a1/api/log.md
rename to archive/2.0.0a2/api/log.md
diff --git a/archive/2.0.0a1/api/nonebot.md b/archive/2.0.0a2/api/nonebot.md
similarity index 100%
rename from archive/2.0.0a1/api/nonebot.md
rename to archive/2.0.0a2/api/nonebot.md
diff --git a/archive/2.0.0a1/api/permission.md b/archive/2.0.0a2/api/permission.md
similarity index 100%
rename from archive/2.0.0a1/api/permission.md
rename to archive/2.0.0a2/api/permission.md
diff --git a/archive/2.0.0a1/api/rule.md b/archive/2.0.0a2/api/rule.md
similarity index 100%
rename from archive/2.0.0a1/api/rule.md
rename to archive/2.0.0a2/api/rule.md
diff --git a/archive/2.0.0a1/api/sched.md b/archive/2.0.0a2/api/sched.md
similarity index 100%
rename from archive/2.0.0a1/api/sched.md
rename to archive/2.0.0a2/api/sched.md
diff --git a/archive/2.0.0a1/api/typing.md b/archive/2.0.0a2/api/typing.md
similarity index 94%
rename from archive/2.0.0a1/api/typing.md
rename to archive/2.0.0a2/api/typing.md
index f68bdfcb..72d66f23 100644
--- a/archive/2.0.0a1/api/typing.md
+++ b/archive/2.0.0a2/api/typing.md
@@ -142,6 +142,22 @@ sidebarDepth: 0
 
 
 
+## `MatcherGroup`
+
+
+* **类型**
+
+    `MatcherGroup`
+
+
+
+* **说明**
+
+    MatcherGroup 为 Matcher 的集合。可以共享 Handler。
+
+
+
+
 ## `Rule`
 
 
diff --git a/archive/2.0.0a1/api/utils.md b/archive/2.0.0a2/api/utils.md
similarity index 70%
rename from archive/2.0.0a1/api/utils.md
rename to archive/2.0.0a2/api/utils.md
index 7de3ba3f..ed98fab9 100644
--- a/archive/2.0.0a1/api/utils.md
+++ b/archive/2.0.0a2/api/utils.md
@@ -6,6 +6,29 @@ sidebarDepth: 0
 # NoneBot.utils 模块
 
 
+## `escape_tag(s)`
+
+
+* **说明**
+
+    用于记录带颜色日志时转义 `<tag>` 类型特殊标签
+
+
+
+* **参数**
+
+    
+    * `s: str`: 需要转义的字符串
+
+
+
+* **返回**
+
+    
+    * `str`
+
+
+
 ## `run_sync(func)`
 
 
diff --git a/archive/2.0.0a1/guide/README.md b/archive/2.0.0a2/guide/README.md
similarity index 100%
rename from archive/2.0.0a1/guide/README.md
rename to archive/2.0.0a2/guide/README.md
diff --git a/archive/2.0.0a1/guide/basic-configuration.md b/archive/2.0.0a2/guide/basic-configuration.md
similarity index 100%
rename from archive/2.0.0a1/guide/basic-configuration.md
rename to archive/2.0.0a2/guide/basic-configuration.md
diff --git a/archive/2.0.0a1/guide/creating-a-project.md b/archive/2.0.0a2/guide/creating-a-project.md
similarity index 100%
rename from archive/2.0.0a1/guide/creating-a-project.md
rename to archive/2.0.0a2/guide/creating-a-project.md
diff --git a/archive/2.0.0a1/guide/getting-started.md b/archive/2.0.0a2/guide/getting-started.md
similarity index 100%
rename from archive/2.0.0a1/guide/getting-started.md
rename to archive/2.0.0a2/guide/getting-started.md
diff --git a/archive/2.0.0a1/guide/installation.md b/archive/2.0.0a2/guide/installation.md
similarity index 100%
rename from archive/2.0.0a1/guide/installation.md
rename to archive/2.0.0a2/guide/installation.md
diff --git a/archive/2.0.0a1/guide/writing-a-plugin.md b/archive/2.0.0a2/guide/writing-a-plugin.md
similarity index 99%
rename from archive/2.0.0a1/guide/writing-a-plugin.md
rename to archive/2.0.0a2/guide/writing-a-plugin.md
index bd176750..42657d9d 100644
--- a/archive/2.0.0a1/guide/writing-a-plugin.md
+++ b/archive/2.0.0a2/guide/writing-a-plugin.md
@@ -159,7 +159,7 @@ weather = on_command("天气", rule=to_me(), permission=Permission(), priority=5
 - `on_startswith(str)` ~ `on("message", startswith(str))`: 消息开头匹配处理器
 - `on_endswith(str)` ~ `on("message", endswith(str))`: 消息结尾匹配处理器
 - `on_command(str|tuple)` ~ `on("message", command(str|tuple))`: 命令处理器
-- `on_regax(pattern_str)` ~ `on("message", regax(pattern_str))`: 正则匹配处理器
+- `on_regex(pattern_str)` ~ `on("message", regex(pattern_str))`: 正则匹配处理器
 
 #### 匹配规则 rule
 
diff --git a/archive/2.0.0a1/sidebar.config.json b/archive/2.0.0a2/sidebar.config.json
similarity index 89%
rename from archive/2.0.0a1/sidebar.config.json
rename to archive/2.0.0a2/sidebar.config.json
index 9dd289f1..bec088a6 100644
--- a/archive/2.0.0a1/sidebar.config.json
+++ b/archive/2.0.0a2/sidebar.config.json
@@ -78,6 +78,14 @@
               {
                 "title": "nonebot.exception 模块",
                 "path": "exception"
+              },
+              {
+                "title": "nonebot.adapters 模块",
+                "path": "adapters/"
+              },
+              {
+                "title": "nonebot.adapters.cqhttp 模块",
+                "path": "adapters/cqhttp"
               }
             ]
           }
diff --git a/docs/.vuepress/versions.json b/docs/.vuepress/versions.json
index 76e10341..386fcf77 100644
--- a/docs/.vuepress/versions.json
+++ b/docs/.vuepress/versions.json
@@ -1,3 +1,3 @@
 [
-  "2.0.0a1"
+  "2.0.0a2"
 ]
\ No newline at end of file
diff --git a/docs/api/utils.md b/docs/api/utils.md
index 7de3ba3f..ed98fab9 100644
--- a/docs/api/utils.md
+++ b/docs/api/utils.md
@@ -6,6 +6,29 @@ sidebarDepth: 0
 # NoneBot.utils 模块
 
 
+## `escape_tag(s)`
+
+
+* **说明**
+
+    用于记录带颜色日志时转义 `<tag>` 类型特殊标签
+
+
+
+* **参数**
+
+    
+    * `s: str`: 需要转义的字符串
+
+
+
+* **返回**
+
+    
+    * `str`
+
+
+
 ## `run_sync(func)`
 
 
diff --git a/docs_build/utils.rst b/docs_build/utils.rst
index 776bbfd0..b7609fdc 100644
--- a/docs_build/utils.rst
+++ b/docs_build/utils.rst
@@ -7,6 +7,7 @@ NoneBot.utils 模块
 ==================
 
 
+.. autofunction:: nonebot.utils.escape_tag
 .. autodecorator:: nonebot.utils.run_sync
 .. autoclass:: nonebot.utils.DataclassEncoder
   :show-inheritance:
diff --git a/nonebot/utils.py b/nonebot/utils.py
index aa718819..9efeb8ca 100644
--- a/nonebot/utils.py
+++ b/nonebot/utils.py
@@ -13,7 +13,7 @@ from nonebot.typing import Any, Callable, Awaitable, overrides
 def escape_tag(s: str) -> str:
     """
     :说明:
-      用于记录带颜色日志时转义 `<tag>` 类型特殊标签
+      用于记录带颜色日志时转义 ``<tag>`` 类型特殊标签
     :参数:
       * ``s: str``: 需要转义的字符串
     :返回: