CHEF-27672 Update and standardize copyright notices to Progress Software Corporation - copyright_update

COPYRIGHT.md

@@ -0,0 +1 @@
+Copyright © 2009-2025 Progress Software Corporation and/or its subsidiaries or affiliates. All rights reserved.

README.md

@@ -215,9 +215,8 @@ bundle exec yard server --reload
 
 For information on contributing to this project please see our [Contributing Documentation](https://github.com/chef/chef/blob/master/CONTRIBUTING.md)
 
-## License & Copyright
+## License 
 
-- Copyright:: Copyright (c) 2008-2018 Chef Software, Inc.
 - License:: Apache License, Version 2.0
 
 ```text
@@ -233,3 +232,6 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 ```
+# Copyright
+
+See [COPYRIGHT.md](./COPYRIGHT.md).

lib/mixlib/cli.rb

@@ -1,6 +1,6 @@
 #
 # Author:: Adam Jacob (<adam@chef.io>)
-# Copyright:: Copyright (c) 2008-2019 Chef Software, Inc.
+# Copyright:: Copyright (c) 2009-2025 Progress Software Corporation and/or its subsidiaries or affiliates. All Rights Reserved.
 # License:: Apache License, Version 2.0
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

spec/mixlib/cli_spec.rb

@@ -1,6 +1,6 @@
 #
 # Author:: Adam Jacob (<adam@chef.io>)
-# Copyright:: Copyright (c) 2008-2019, Chef Software Inc.
+# Copyright:: Copyright (c) 2009-2025 Progress Software Corporation and/or its subsidiaries or affiliates. All Rights Reserved.
 # License:: Apache License, Version 2.0
 #
 # Licensed under the Apache License, Version 2.0 (the "License");