Revert "feat: release 2.16.0 (#2719)" (#2721)

This reverts commit 8c9b7bc05379564fc8769c9e4b6b22b54fc9112c.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 24f1276..015a6b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,7 +19,6 @@
 
 # Table of Contents
 
-- [2.16.0](#2160)
 - [2.15.0](#2150)
 - [2.14.0](#2140)
 - [2.13.1](#2131)
@@ -43,24 +42,6 @@
 - [1.5.0](#150)
 - [1.0.0](#100)
 
-## 2.16.0
-
-### Core
-
-- feat: basic support Apache APISIX 3.0.0 [#2701](https://github.com/apache/apisix-dashboard/pull/2701)
-- feat: change etcd prefix for ssl and proto [#2693](https://github.com/apache/apisix-dashboard/pull/2693)
-
-### Bugfix
-
-- fix: remove cases external service dependency [#2697](https://github.com/apache/apisix-dashboard/pull/2697)
-- fix: adapt APISIX plugin disabled [#2717](https://github.com/apache/apisix-dashboard/pull/2717)
-- fix: plugin configuration lost in editor [#2718](https://github.com/apache/apisix-dashboard/pull/2718)
-
-### Other
-
-- chore: optimize "allow_origins_by_regex tooltip" description [#2690](https://github.com/apache/apisix-dashboard/pull/2690)
-- chore: simplify e2e env [#2694](https://github.com/apache/apisix-dashboard/pull/2694)
-
 ## 2.15.0
 
 ### Core
diff --git a/README.md b/README.md
index d374b44..92ed7f2 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@
 
 - The master version should be used with Apache APISIX master version.
 
-- The latest released version is [2.16.0](https://apisix.apache.org/downloads/) and is compatible with [Apache APISIX 3.x](https://apisix.apache.org/downloads/).
+- The latest released version is [2.15.0](https://apisix.apache.org/downloads/) and is compatible with [Apache APISIX 2.15.x](https://apisix.apache.org/downloads/).
 
 ## What's Apache APISIX Dashboard
 
diff --git a/api/VERSION b/api/VERSION
index 7524906..68e69e4 100644
--- a/api/VERSION
+++ b/api/VERSION
@@ -1 +1 @@
-2.16.0
+2.15.0
diff --git a/docs/en/latest/config.json b/docs/en/latest/config.json
index d68d802..0925d9e 100644
--- a/docs/en/latest/config.json
+++ b/docs/en/latest/config.json
@@ -1,5 +1,5 @@
 {
-  "version": "2.16.0",
+  "version": "2.15.0",
   "sidebar": [
     {
       "type": "category",
diff --git a/docs/en/latest/develop.md b/docs/en/latest/develop.md
index 8962255..5e9830b 100644
--- a/docs/en/latest/develop.md
+++ b/docs/en/latest/develop.md
@@ -30,7 +30,7 @@
 ## Clone the project
 
 ```sh
-$ git clone -b release/2.16 https://github.com/apache/apisix-dashboard.git
+$ git clone -b release/2.15 https://github.com/apache/apisix-dashboard.git
 ```
 
 ## Start developing
diff --git a/docs/en/latest/install.md b/docs/en/latest/install.md
index c4b70f9..8b61394 100644
--- a/docs/en/latest/install.md
+++ b/docs/en/latest/install.md
@@ -48,7 +48,7 @@
 
 ```shell
 # 1. install RPM package
-sudo yum install -y https://github.com/apache/apisix-dashboard/releases/download/v2.16.0/apisix-dashboard-2.16.0-0.el7.x86_64.rpm
+sudo yum install -y https://github.com/apache/apisix-dashboard/releases/download/v2.15.0/apisix-dashboard-2.15.0-0.el7.x86_64.rpm
 ```
 
 ### Launch
@@ -91,7 +91,7 @@
 ### Download {#source-download}
 
 ```shell
-git clone -b release/2.16 https://github.com/apache/apisix-dashboard.git && cd apisix-dashboard
+git clone -b release/2.15 https://github.com/apache/apisix-dashboard.git && cd apisix-dashboard
 ```
 
 ### Build {#source-build}
diff --git a/web/package.json b/web/package.json
index 8361fbf..1492e9b 100644
--- a/web/package.json
+++ b/web/package.json
@@ -1,6 +1,6 @@
 {
   "name": "apisix-dashboard",
-  "version": "2.16.0",
+  "version": "2.15.0",
   "private": true,
   "description": "Dashboard for Apache APISIX",
   "scripts": {