Bump to v3.1.1

Change-Id: Ic5a1a572e550a8ae1924a4afd1d44932bb56fe49
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 247f2f3..c6e5662 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## [v3.1.1] - 2025-12-17
+
+### Fixed
+
+- Compiler warnings about conditions that are always 'true' in metadata inheritance logic
+- Missing metadata inherited from corpus and document headers
+- Missing paragraph spans in Krill output
+- Duplicate log files issue
+- `-o` option failure with relative paths
+- `-F` and `-T` option combination not working correctly
+- `-o` option for `-T` with docker taggers
+- Log to log files only
+
 ## [v3.1.0] - 2025-12-04
 
 ### Fixed
@@ -51,5 +64,3 @@
     - `-j` / `--jobs` / `--threads` now sets the number of threads (replaced `-T`).
     - `-q` / `--quiet` suppresses progress output.
 - **Documentation**: Updated README.md with new usage instructions and examples.
-
-
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 61ff046..6d01807 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 v3.1.0"],
+    version = ["korapxmltool v3.1.1"],
     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 e3dea96..1aa733d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,4 +5,4 @@
 }
 
 // Zentrale Projektversion für korapxmltool
-version = '3.1.0'
+version = '3.1.1'