diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index 595ce621..b66c6be2 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -1,5 +1,12 @@
 # Wikibase DataModel release notes
 
+## Version 3.0.0 (dev)
+
+* `Statement` no longer takes a `Claim` in its constructor
+* `Statement::setClaim` and `Statement::getClaim` have been removed
+* Removed `ClaimList`
+* Removed `ClaimListAccess`
+
 ## Version 2.6.0 (dev)
 
 * Empty strings are now detected as invalid in the `SiteLink` constructor
diff --git a/WikibaseDataModel.php b/WikibaseDataModel.php
index 15846fc1..51c4a806 100644
--- a/WikibaseDataModel.php
+++ b/WikibaseDataModel.php
@@ -12,7 +12,7 @@
 	return 1;
 }
 
-define( 'WIKIBASE_DATAMODEL_VERSION', '2.6.0 alpha' );
+define( 'WIKIBASE_DATAMODEL_VERSION', '3.0.0 alpha' );
 
 if ( defined( 'MEDIAWIKI' ) ) {
 	call_user_func( function() {
diff --git a/composer.json b/composer.json
index 68ab42b7..117cc17a 100644
--- a/composer.json
+++ b/composer.json
@@ -38,7 +38,7 @@
 	},
 	"extra": {
 		"branch-alias": {
-			"dev-master": "2.6.x-dev"
+			"dev-master": "3.0.x-dev"
 		}
 	},
 	"scripts": {