GNU sed goes GPL3
A new stable release of GNU sed, version 4.2, is available. GNU sed is the free software version of the UNIX stream editor, which is typically used to filter or manipulate files or streams of text non-interactively, for example, within shell scripts. The new version is the first to be released under the GPL version 3 .
GNU sed 4.2 also offers improved portability, better performance in UTF8 locales, fixes for multi-byte processing and an ability to follow symbolic links when the underlying operating system supports them. The new version is available to download from the ftp.gnu.org (direct download) site.