TextWrangler 4.0 requires Mac OS X 10.6 or later (10.6.8, 10.7.3 or later recommended). It will not run on Mac OS 9, or any earlier versions of Mac OS X.
TextWrangler 4 offers numerous new features and interface enhancements, including:
as well as all the powerful core features that TextWrangler is known for.
In addition to these major enhancements, TextWrangler 4 also contains numerous additional behavioral and interface refinements, as well as performance enhancements and bug fixes. For a detailed summary of changes and bug fixes, please refer to the current release notes, which are available on our web site.