Bump to next development version
diff --git a/pom.xml b/pom.xml
index 59e4388..c23957d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -24,7 +24,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>commons-io</groupId>
   <artifactId>commons-io</artifactId>
-  <version>2.21.0</version>
+  <version>2.21.1-SNAPSHOT</version>
   <name>Apache Commons IO</name>
   <inceptionYear>2002</inceptionYear>
   <description>
@@ -119,7 +119,7 @@
     <commons.release.version>2.21.0</commons.release.version>
     <commons.release.next>2.21.1</commons.release.next>
     <!-- project.build.outputTimestamp is managed by Maven plugins, see https://maven.apache.org/guides/mini/guide-reproducible-builds.html -->
-    <project.build.outputTimestamp>2025-11-04T20:17:29Z</project.build.outputTimestamp>
+    <project.build.outputTimestamp>2025-11-06T21:58:17Z</project.build.outputTimestamp>
     <commons.release.desc>(requires Java 8)</commons.release.desc>
     <commons.jira.id>IO</commons.jira.id>
     <commons.jira.pid>12310477</commons.jira.pid>