Outdated command shows up2date packages

[mmarton]

My composer.json:

{
    "require": {
        "phpunit/phpunit": "@dev"
    }
}

Output of composer diagnose:

Checking composer.json: WARNING
No license specified, it is recommended to do so. For closed-source software you may use "proprietary" as license.
require.phpunit/phpunit : unbound version constraints (@dev) should be avoided
Checking platform settings: OK
Checking git settings: OK
Checking http connectivity to packagist: OK
Checking https connectivity to packagist: OK
Checking github.com rate limit: OK
Checking disk free space: OK
Checking pubkeys: 
Tags Public Key Fingerprint: 57815BA2 7E54DC31 7ECC7CC5 573090D0  87719BA6 8F3BB723 4E5D42D0 84A14642
Dev Public Key Fingerprint: 4AC45767 E5EC2265 2F0C1167 CBBB8A2B  0C708369 153E328C AD90147D AFE50952
OK
Checking composer version: OK
Composer version: 2.0.2
PHP version: 7.4.11
PHP binary path: /usr/bin/php7.4
OpenSSL version: OpenSSL 1.1.1g  21 Apr 2020
cURL version: 7.58.0 libz 1.2.11 ssl OpenSSL/1.1.1g
zip extension: OK

When I run this command:

composer outdated

I get the following output:

phpunit/phpunit dev-master 09ba0b8 9.5.x-dev 09ba0b8 The PHP Unit Testing framework.

And I expected this to happen:

with the same commit hash this package is up to date and sholdn't appear in the outdated list. This has nothing to do with phpunit, every @dev or, dev-branchname, or dev-branchname#commithash "version" shows up in the outdated list.

[Seldaek]

That might be due to the new branch alias alias handling in composer 2. Will have to check, thanks for the report.

[Seldaek]

You can try and confirm the fix with composer self-update --snapshot if you like.

[mmarton]

It works with 2.0.3, thanks for the quick fix