Incompatibility with PHP 8.1 in v4.0.0

[ltrk2]

API Platform version(s) affected: 4.0.0

Description
According to the requirement at Packagist, 4.0.0 is supposed to be compatible with PHP 8.1.0+. However, the use of a language feature (https://wiki.php.net/rfc/readonly_classes) supported in PHP 8.2+ introduced in 7110dc6 seems to have broken this, because I get the following error when trying to execute on top of PHP 8.1.29:

Parse error: syntax error, unexpected token "readonly", expecting "abstract" or "final" or "class" in vendor/api-platform/core/src/Hydra/Serializer/HydraPrefixNameConverter.php on line 20

How to reproduce
I'll follow-up with a simple reproduction shortly.

[soyuka]

My bad, we wanted to support php 8.2 only for v4.0.

[ltrk2]

@soyuka thank you very much for your quick response! I see that you've also pulled the release, which is great.

[ltrk2]

@soyuka the v4.0.0 release seems to be back on Packagist. Was this intentional by any chance?
If one was using PHP 8.1, running composer install api-platform/core would install this incompatible version.

[lazka]

It also results in renovate to suggest an update, which fails with an error.