Release 2.0.0 (#31)

* Update release notes for 2.0.0
* Bump version to 2.0.0

Author: PeterTheOne

docs/RELEASE-NOTES.md

@@ -1,18 +1,31 @@
 # Semantic Tasks Release Notes
 
-These are the release notes for the Semantic Tasks extension. See also
+These are the release notes for the **Semantic Tasks** (a.k.a. ST) extension. See also
 the extension's page on mediawiki.org:
 
 * https://www.mediawiki.org/wiki/Extension:Semantic_Tasks
 
+## Version 2.0.0
+
+Released on 2019-11-30
+
+* Minimum requirement for
+  * PHP changed to version 5.6 and later
+  * MediaWiki changed to version 1.31 and later
+  * Semantic MediaWiki changed to version 3.0 and later
+* Added support for extension registration via "extension.json"  
+  → Now you have to use `wfLoadExtension( 'SemanticTasks' );` in the "LocalSettings.php" file to invoke the extension
+* Introduced custom property mapping
+* Reworked and improved extension documentation
+* Updated translations (by translatewiki.net community)
 
 ## Version 1.7.0
 
 Released on 2017-08-01
 
 * Removed I18n php shim
 * Dropped support for MediaWiki 1.22.x and earlier.
-
+* Updated translations (by translatewiki.net community)
 
 ## Version 1.6.0
 
@@ -21,25 +34,26 @@ Released on 2015-4-09
 * Made compatible with MediaWiki 1.24.x and later.
 * Removed deprecated code.
 * Added option to notify users when unassigned from a task.
-
+* Updated translations (by translatewiki.net community)
 
 ## Version 1.5.0
 
 Released on 2014-04-01
 
 * Migrated to JSON i18n
-
+* Updated translations (by translatewiki.net community)
 
 ## Version 1.4.1
 
 Released on 2011-12-06
 
 * Added support for Semantic MediaWiki 1.7.x and later.
 * Dropped support for MediaWiki 1.15.x and earlier.
-
+* Updated translations (by translatewiki.net community)
 
 ## Version 1.4.0
 
 Released in June 2010
 
 * Fixed bug that caused notifications to fail in non-main namespaces.
+* Updated translations (by translatewiki.net community)

extension.json

@@ -1,6 +1,6 @@
 {
 	"name": "SemanticTasks",
-	"version": "2.0.0-alpha",
+	"version": "2.0.0",
 	"author": [
 		"Steren Giannini",
 		"Ryan Lane",