Bump version to 12.1.5 and update release notes

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: JeroenDeDauw

RELEASE-NOTES.md

@@ -3,6 +3,12 @@ different releases and which versions of PHP and MediaWiki they support, see the
 [platform compatibility tables](INSTALL.md#platform-compatibility-and-release-status).
 
 
+## Maps 12.1.5
+
+Released on June 4th, 2026.
+
+* Fixed semantic maps being broken on Semantic MediaWiki 7.0 (#898, #901)
+
 ## Maps 12.1.4
 
 Released on May 30th, 2026.

extension.json

@@ -1,6 +1,6 @@
 {
 	"name": "Maps",
-	"version": "12.1.4",
+	"version": "12.1.5",
 
 	"author": [
 		"[https://EntropyWins.wtf/mediawiki Jeroen De Dauw]",