[](https://php.package.health/packages/hjerichen/collections/1.2.0)
No required dependencies.
4 total, 3 outdated, 1 unknown
| Package | Required | Latest | Status | |
|---|---|---|---|---|
| phpunit/phpunit | The PHP Unit Testing framework. | ^9.0 | 13.1.1 | outdated |
| psalm/plugin-phpunit | Psalm plugin for PHPUnit | ^0.16.1 | 0.19.5 | outdated |
| roave/security-advisories | Prevents installation of composer packages with known security vulnerabilities: no API, simply require it | dev-master | | unknown |
| vimeo/psalm | A static analysis tool for finding errors in PHP applications | ^4.10 | 6.16.0 | outdated |