diff --git a/README.md b/README.md
index 9b2186c..7e7f9ee 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# LuaDate v2.1
+# LuaDate v2.2
 
 [![Build Status](https://travis-ci.com/Tieske/date.svg?branch=master)](https://travis-ci.com/Tieske/date)
 [![Coverage Status](https://coveralls.io/repos/github/Tieske/date/badge.svg?branch=master)](https://coveralls.io/github/Tieske/date?branch=master)
@@ -27,7 +27,21 @@ Documentation is available in the `doc` folder, or [online at Github](http://tie
 
 Tests are located in the `spec` directory and can be run using [busted](http://olivinelabs.com/busted/).
 
-## Changes:
+## Changelog:
+
+### Releasing:
+- search for "copyright" and update all occurences with proper years
+- update version in:
+  - `README.md` (at the top)
+  - `date.lua` (at the top, and exported field `date.version`)
+  - `index.html` (appr. line 20)
+- update rockspec
+- commit as `release x.y.z` (omit trailing 0)
+- tag as `version_x.y.z` (omit trailing 0)
+- push commit & tags
+- upload rock to luarocks
+
+### Changes:
 
 - v2.2 add 'centuryflip' to set 2 digit year interpretation [#26](https://github.com/Tieske/date/pull/26)
 - v2.1.3 fix rockspec for Lua 5.4
diff --git a/docs/index.html b/docs/index.html
index 571d68c..716ced5 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -17,7 +17,7 @@
     <div class="titlepage">
       <div>
         <div>
-          <h2 class="title"><a name="id90891" id="id90891"></a>LuaDate v2.1</h2>
+          <h2 class="title"><a name="id90891" id="id90891"></a>LuaDate v2.2</h2>
         </div>
 
         <div>
diff --git a/src/date.lua b/src/date.lua
index 6a991b5..35fdab6 100644
--- a/src/date.lua
+++ b/src/date.lua
@@ -1,7 +1,7 @@
 ---------------------------------------------------------------------------------------
 -- Module for date and time calculations
 --
--- Version 2.1.2
+-- Version 2.2
 -- Copyright (C) 2005-2006, by Jas Latrix (jastejada@yahoo.com)
 -- Copyright (C) 2013-2021, by Thijs Schreijer
 -- Licensed under MIT, http://opensource.org/licenses/MIT
@@ -198,7 +198,12 @@
   local date = {}
   setmetatable(date, date)
 -- Version:  VMMMRRRR; V-Major, M-Minor, R-Revision;  e.g. 5.45.321 == 50450321
-  date.version = 20010003 -- 2.1.3
+  do
+    local major = 2
+    local minor = 2
+    local revision = 0
+    date.version = major * 10000000 + minor * 10000 + revision
+  end
 --#end -- not DATE_OBJECT_AFX
 --[[ THE DATE OBJECT ]]--
   local dobj = {}