T376409: Upgrade composer to 2.8.x | [None yet]
It seems it's been over a year since we did rCICFa267a9618fdf: Docker: [composer-scratch] Upgrade composer from 2.7.2 to 2.8.1 for T376409: Upgrade composer to 2.8.x.
https://blog.packagist.com/composer-2-9/ is out (so is 2.9.1)...
https://github.com/composer/composer/releases/tag/2.8.2
https://github.com/composer/composer/releases/tag/2.8.3
https://github.com/composer/composer/releases/tag/2.8.4
https://github.com/composer/composer/releases/tag/2.8.5
https://github.com/composer/composer/releases/tag/2.8.6
https://github.com/composer/composer/releases/tag/2.8.7
https://github.com/composer/composer/releases/tag/2.8.8
https://github.com/composer/composer/releases/tag/2.8.9
https://github.com/composer/composer/releases/tag/2.8.10 PHP 8.4 support PHP 8.5 support
https://github.com/composer/composer/releases/tag/2.8.11 PHP 8.5 support
https://github.com/composer/composer/releases/tag/2.8.12 PHP 8.5 support
https://github.com/composer/composer/releases/tag/2.9.0
https://github.com/composer/composer/releases/tag/2.9.1
https://github.com/composer/composer/compare/2.8.1...2.9.1
We're probably due an upgrade. Whether we want to wait for another point release or two...