Maybe this would be better targeted at 5.0 since it's a change in behaviour?

#5531 It was merged and reverted before.

To give an idea of why I thought this change should be made:

app/packages/{vendor}/{package}/config.php:

<?php

return [
    'abc' => [
        'test' => [
            'title' => 'a',
            'config' => [],
        ]
    ]
]

app/packages/{vendor}/{package}/local/config.php:

<?php
return [
    'abc' => [
        'test' => [
            'config' => [
                'host' => 'thing',
            ]
        ]
    ]
]

When I call Config::get('package::abc') from my local environment I would expect:

[
    'test' => [
        'title' => 'a',
        'config' => [
            'host' => 'thing',
        ]
    ]
]

Also, it appears the pull-request you linked to changed both occurrences of array_merge whereas mine only changes the second. I think this would give better behavior, but should be left to discussion here to determine if it is inconsistent.

This needs to go to 5.0 if at all.

OK well don't you think it deserves the discussion here then for that decision? Environment configs are rather non-intuitive for packages right now.

Yes, this has already been discussed, and it cannot be changed in laravel 4.2. If it is going to be changed, it MUST be changed in laravel 5.

Right, but I mean the discussion as to should/will it be changed in Laravel 5?

Feel free to send a pull to laravel 5, or have a chat to taylor on irc if he has a min.