diff --git a/CHANGELOG.md b/CHANGELOG.md
index be5d792f..2d1be848 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## v0.16.0 (released at 2022-06-06)
+
+* Support wechat draft. #305
+* Add environment variable for configuring http proxy to ignore IP address changes everytime after app deployment, by @Awlter #312
+* Soft drop support for Ruby 2.6, because EOL time 12 Apr 2022.
+
 ## v0.15.1 (released at 2022-02-16)
 
 * fix "Psych::BadAlias (Unknown alias: default)" in ruby 3.1.0 #309, reported by @otorain
diff --git a/VERSION b/VERSION
index e815b861..04a373ef 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.15.1
+0.16.0
diff --git a/wechat.gemspec b/wechat.gemspec
index 8a2bef7a..5120e0b6 100644
--- a/wechat.gemspec
+++ b/wechat.gemspec
@@ -10,7 +10,7 @@ Gem::Specification.new do |s|
   s.licenses    = ['MIT']
   s.summary     = 'DSL for wechat message handling and API'
   s.description = 'API, command and message handling for WeChat in Rails'
-  s.required_ruby_version = '>= 2.7'
+  s.required_ruby_version = '>= 2.6'
   s.required_rubygems_version = ">= 1.8.11"
 
   s.files = Dir['{bin,lib}/**/*'] + %w[LICENSE README.md README-CN.md CHANGELOG.md]