Well, like the link states this already breaks compatibility with BSD grep. Combine that with breaking compatibility with previous version, breaking previous scripts, and breaking based on distro depending on the speed at which the package maintainers upgrade (if ever)... it's best IMO to just leave it the way it always was.
It's going to be hard enough switching between a machine that only gets critical updates and a machine with the same distro but getting all updates. Grep has been around since 1973, is there any serious Unix scripter who feels it still needs more features?
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Well, like the link states this already breaks compatibility with BSD grep. Combine that with breaking compatibility with previous version, breaking previous scripts, and breaking based on distro depending on the speed at which the package maintainers upgrade (if ever)... it's best IMO to just leave it the way it always was.
It's going to be hard enough switching between a machine that only gets critical updates and a machine with the same distro but getting all updates. Grep has been around since 1973, is there any serious Unix scripter who feels it still needs more features?