diff --git a/.github/workflows/rubyonrails.yml b/.github/workflows/rubyonrails.yml
index 667af85..4c8bbb4 100644
--- a/.github/workflows/rubyonrails.yml
+++ b/.github/workflows/rubyonrails.yml
@@ -21,9 +21,9 @@
 name: "GitHub CI"
 on:
   push:
-    branches: ["devel"]
+    branches: ["master"]
   pull_request:
-    branches: ["devel"]
+    branches: ["master"]
 jobs:
   plugin_tests:
     strategy:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d943090..d1379d1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,14 @@
 Changelog for Custom Workflows
 ==============================
 
-2.1.0 *????-??-??*
+2.1.0 *2023-11-15*
 -------------------
     Member as an observable object
+    Redmine 5.1 compatibility
+
+* New: #324 - Add Member as a observable object
+* Bug: #322 - Problem with upgrading from 2.0.3 to 2.0.9
+* New: #320 - Interference with other redmine-plugins
 
 2.0.9 *2023-06-06*
 ------------------
diff --git a/README.md b/README.md
index 5785d17..540919c 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
-Custom Workflows plug-in 2.1.0 devel
-=====================================
+Custom Workflows plug-in 2.1.0
+==============================
 
-[![GitHub CI](https://github.com/anteo/redmine_custom_workflows/actions/workflows/rubyonrails.yml/badge.svg?branch=devel)](https://github.com/anteo/redmine_custom_workflows/actions/workflows/rubyonrails.yml)
+[![GitHub CI](https://github.com/anteo/redmine_custom_workflows/actions/workflows/rubyonrails.yml/badge.svg?branch=master)](https://github.com/anteo/redmine_custom_workflows/actions/workflows/rubyonrails.yml)
 [![Support Ukraine Badge](https://bit.ly/support-ukraine-now)](https://github.com/support-ukraine/support-ukraine)
 
 This plug-in provides a great functionality for those who is familiar with the Ruby language.
diff --git a/init.rb b/init.rb
index fb5b639..f052e70 100644
--- a/init.rb
+++ b/init.rb
@@ -25,7 +25,7 @@ Redmine::Plugin.register :redmine_custom_workflows do
   author_url 'https://github.com/anteo/redmine_custom_workflows/graphs/contributors'
   author 'Anton Argirov/Karel Pičman'
   description 'It allows to create custom workflows for objects, defined in a plain Ruby language'
-  version '2.1.0 devel'
+  version '2.1.0'
 
   requires_redmine version_or_higher: '4.1.0'