diff --git a/doc/changes/changes_4.11.0.md b/doc/changes/changes_4.11.0.md
new file mode 100644
index 000000000..2e3958bee
--- /dev/null
+++ b/doc/changes/changes_4.11.0.md
@@ -0,0 +1,23 @@
+# OpenFastTrace 4.11.0, released 2026-09-??
+
+Code name: Visual Basic tag importer and documentation improvement
+
+## Summary
+
+The source tag importer now supports Visual Basic (`.vb`) source files.
+
+The user guide documentation now has automatic lateral navigation.
+
+Fix typo and syntax in agent skills.
+
+## Feature
+
+- #612: Add support for Visual Basic in the source tag importer
+
+## Documentation
+
+- #604: Fixed link to Product Lifecycle in SECURITY.md
+- #605: Added automatic lateral navigation to the user guide documentation
+- #606: Fixed typo in AGENTS.md for "functions"
+- #608: Fixed formatting and updated links in README.md
+- #614: Fixed markdown syntax in the AI agent skill
diff --git a/doc/user_guide/reference/input_format_support.md b/doc/user_guide/reference/input_format_support.md
index 0629b8c75..f9d9d25c4 100644
--- a/doc/user_guide/reference/input_format_support.md
+++ b/doc/user_guide/reference/input_format_support.md
@@ -107,6 +107,7 @@ recognized file types:
 * Swift (`.swift`)
 * Terraform (`.tf`, `.tfvars`)
 * TypeScript (`.ts`)
+* Visual Basic (`.vb`)
 * Windows batch files (`.bat`)
 
 **Configuration and Serialization Formats** 
diff --git a/importer/tag/src/main/java/org/itsallcode/openfasttrace/importer/tag/TagImporterFactory.java b/importer/tag/src/main/java/org/itsallcode/openfasttrace/importer/tag/TagImporterFactory.java
index 7d2585665..78016ae00 100644
--- a/importer/tag/src/main/java/org/itsallcode/openfasttrace/importer/tag/TagImporterFactory.java
+++ b/importer/tag/src/main/java/org/itsallcode/openfasttrace/importer/tag/TagImporterFactory.java
@@ -42,6 +42,7 @@ public class TagImporterFactory extends AbstractImporterFactory
             "sh", "bash", "zsh", // Shell programming
             "sv", "v", "inc", // SystemVerilog
             "swift", // Swift
+            "vb", // Visual Basic
             "toml", // Tom's Obvious Minimal Language : a config file format
             "tf", "tfvars", // Terraform
             "sql", "pls" // Database related
diff --git a/importer/tag/src/test/java/org/itsallcode/openfasttrace/importer/tag/TestTagImporterFactory.java b/importer/tag/src/test/java/org/itsallcode/openfasttrace/importer/tag/TestTagImporterFactory.java
index 5bef2c5fd..d3a97b7a1 100644
--- a/importer/tag/src/test/java/org/itsallcode/openfasttrace/importer/tag/TestTagImporterFactory.java
+++ b/importer/tag/src/test/java/org/itsallcode/openfasttrace/importer/tag/TestTagImporterFactory.java
@@ -35,7 +35,8 @@ protected List<String> getSupportedFilenames()
                 "foo.rs", "foo.sh", "foo.sv", "foo.v", "foo.inc", "foo.yaml", "foo.yml", "foo.xhtml", "foo.xml",
                 "foo.zsh",
                 "foo.clj", "foo.kt", "foo.scala",
-                "foo.pu", "foo.puml", "foo.plantuml", "foo.go", "foo.robot", "foo.tf", "foo.tfvars", "foo.toml");
+                "foo.pu", "foo.puml", "foo.plantuml", "foo.go", "foo.robot", "foo.tf", "foo.tfvars", "foo.toml",
+                "foo.vb");
     }
 
     @Override
diff --git a/product/src/test/resources/example/requirements.md b/product/src/test/resources/example/requirements.md
index 3f4eeb2ef..ed3451adb 100644
--- a/product/src/test/resources/example/requirements.md
+++ b/product/src/test/resources/example/requirements.md
@@ -23,3 +23,7 @@ Needs: src
 ## Sql
 `req~sql-source~1`
 Needs: src
+
+## Visual Basic
+`req~vb-source~1`
+Needs: src
diff --git a/product/src/test/resources/example/src/test.vb b/product/src/test/resources/example/src/test.vb
new file mode 100644
index 000000000..eaa547138
--- /dev/null
+++ b/product/src/test/resources/example/src/test.vb
@@ -0,0 +1 @@
+' [src->req~vb-source~1]