diff --git a/CHANGELOG.md b/CHANGELOG.md
index e03459d..35e8e01 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [v3.4.0] - 2026-06-08
+
+### Added
+
+- Stand-off metadata support for Krill output: text-level metadata (e.g. Wikipedia topic-domain classifications, external links) is read from `<standOff>` XML files and folded into the Krill index. Such files are auto-detected among the inputs by content (no extra option needed) and joined to texts by `raw_text/@docid`. Classification layers become `type:keywords` fields named after the layer id; link layers become `type:attachement` fields. By default every category present in the file is indexed, leaving selection to the producing annotation or classification tool.
+
 ## [v3.3.3] - 2026-06-04
 
 ### Added
diff --git a/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXmlTool.kt b/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXmlTool.kt
index bdd01d2..f178517 100644
--- a/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXmlTool.kt
+++ b/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXmlTool.kt
@@ -61,7 +61,7 @@
 @Command(
     name = "korapxmltool",
     mixinStandardHelpOptions = true,
-    version = ["korapxmltool v3.3.3"],
+    version = ["korapxmltool v3.4.0"],
     usageHelpAutoWidth = false,
     usageHelpWidth = 200,
     description = ["Converts between KorAP-XML ZIP format and formats like CoNLL-U, Krill, word2vec, NOW\n"+
diff --git a/build.gradle b/build.gradle
index 5dff3d2..6ebe5dd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,4 +5,4 @@
 }
 
 // Zentrale Projektversion für korapxmltool
-version = '3.3.3'
+version = '3.4.0'