release of the utility for organizing data search in text files - In the new version, the behavior of the ‘—files-without-match’ option (-L) has been reverted to its original state, which was altered in the grep 3.2 release for consistency with the git-grep utility. In grep 3.2, the search was considered successful if the processed file was mentioned in the list, whereas now the success of the search depends not on the presence of the file in the list but on the match of the searched string.
The message displayed when matches are found in binary files has been revamped. The message now appears as ‘grep: FOO: binary file matches’ and is output to stderr to avoid overlapping with regular output (for example, the command ‘grep PATTERN FILE | wc’ previously miscounted the number of matches due to the warning being output to the standard stream). Similarly, the messages ‘grep: FOO: warning: recursive directory loop’ and ‘grep: FOO: input file is also the output’ have also been redirected to stderr.
Source: opennet.ru
