diff --git a/README.md b/README.md
index 093b1a4..10bc43a 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
-[![Go Reference](https://pkg.go.dev/badge/github.com/github/go-spdx/v2@v2.1.2/spdxexp.svg)](https://pkg.go.dev/github.com/github/go-spdx/v2@v2.1.2/spdxexp)
+[![Go Reference](https://pkg.go.dev/badge/github.com/github/go-spdx/v2@v2.3.0/spdxexp.svg)](https://pkg.go.dev/github.com/github/go-spdx/v2@v2.3.0/spdxexp)
+[![Go Reference](https://pkg.go.dev/badge/github.com/github/go-spdx/v2@v2.3.0/spdxlicenses.svg)](https://pkg.go.dev/github.com/github/go-spdx/v2@v2.3.0/spdxlicenses)
 
 # go-spdx
 
diff --git a/cmd/exceptions.go b/cmd/exceptions.go
index 04c93a4..749bf5d 100644
--- a/cmd/exceptions.go
+++ b/cmd/exceptions.go
@@ -51,6 +51,10 @@ func extractExceptionLicenseIDs() error {
 	// generate the GetExceptions() function in get_exceptions.go
 	getExceptionsContents := []byte(`package spdxlicenses
 
+// Code generated by go-spdx cmd/exceptions.go. DO NOT EDIT.
+// Source: https://github.com/spdx/license-list-data specifies official SPDX license list.
+
+// GetExceptions returns a slice of exception license IDs.
 func GetExceptions() []string {
 	return []string{
 `)
diff --git a/cmd/license.go b/cmd/license.go
index ca15e40..c051189 100644
--- a/cmd/license.go
+++ b/cmd/license.go
@@ -56,6 +56,10 @@ func extractLicenseIDs() error {
 	// generate the GetLicenses() function in get_licenses.go
 	getLicensesContents := []byte(`package spdxlicenses
 
+// Code generated by go-spdx cmd/license.go. DO NOT EDIT.
+// Source: https://github.com/spdx/license-list-data specifies official SPDX license list.
+
+// GetLicenses returns a slice of active license IDs.
 func GetLicenses() []string {
 	return []string{
 `)
@@ -76,6 +80,10 @@ func GetLicenses() []string {
 	// generate the GetDeprecated() function in get_deprecated.go
 	getDeprecatedContents := []byte(`package spdxlicenses
 
+// Code generated by go-spdx cmd/license.go. DO NOT EDIT.
+// Source: https://github.com/spdx/license-list-data specifies official SPDX license list.
+
+// GetDeprecated returns a slice of deprecated license IDs.
 func GetDeprecated() []string {
 	return []string{
 `)
diff --git a/go.mod b/go.mod
index 4389fc0..e353dcc 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/github/go-spdx/v2
 
-go 1.18
+go 1.22
 
 require github.com/stretchr/testify v1.8.0
 
diff --git a/spdxexp/spdxlicenses/doc.go b/spdxexp/spdxlicenses/doc.go
new file mode 100644
index 0000000..81d3860
--- /dev/null
+++ b/spdxexp/spdxlicenses/doc.go
@@ -0,0 +1,9 @@
+/*
+Spdxlicenses package provides functions to get licenses, deprecated licenses, and exceptions.  These are auto-generated and should not be modified directly.
+Licenses are generated from the [SPDX official machine readable license list].
+
+In addition, this package includes a function to return license ranges for sequential licenses and ranges including modifiers (i.e. -only, -or-later).
+
+[SPDX official machine readable license list]: https://github.com/spdx/license-list-data
+*/
+package spdxlicenses
diff --git a/spdxexp/spdxlicenses/get_deprecated.go b/spdxexp/spdxlicenses/get_deprecated.go
index d0776a5..bef76dd 100644
--- a/spdxexp/spdxlicenses/get_deprecated.go
+++ b/spdxexp/spdxlicenses/get_deprecated.go
@@ -1,5 +1,9 @@
 package spdxlicenses
 
+// Code generated by go-spdx cmd/license.go. DO NOT EDIT.
+// Source: https://github.com/spdx/license-list-data specifies official SPDX license list.
+
+// GetDeprecated returns a slice of deprecated license IDs.
 func GetDeprecated() []string {
 	return []string{
 		"AGPL-1.0",
diff --git a/spdxexp/spdxlicenses/get_exceptions.go b/spdxexp/spdxlicenses/get_exceptions.go
index 0532ce6..cc55f2c 100644
--- a/spdxexp/spdxlicenses/get_exceptions.go
+++ b/spdxexp/spdxlicenses/get_exceptions.go
@@ -1,5 +1,9 @@
 package spdxlicenses
 
+// Code generated by go-spdx cmd/exceptions.go. DO NOT EDIT.
+// Source: https://github.com/spdx/license-list-data specifies official SPDX license list.
+
+// GetExceptions returns a slice of exception license IDs.
 func GetExceptions() []string {
 	return []string{
 		"389-exception",
diff --git a/spdxexp/spdxlicenses/get_licenses.go b/spdxexp/spdxlicenses/get_licenses.go
index 1f402ab..6675879 100644
--- a/spdxexp/spdxlicenses/get_licenses.go
+++ b/spdxexp/spdxlicenses/get_licenses.go
@@ -1,5 +1,9 @@
 package spdxlicenses
 
+// Code generated by go-spdx cmd/license.go. DO NOT EDIT.
+// Source: https://github.com/spdx/license-list-data specifies official SPDX license list.
+
+// GetLicenses returns a slice of active license IDs.
 func GetLicenses() []string {
 	return []string{
 		"0BSD",