SemanticVersion.php

<?php

namespace Drupal\Composer\Util;


/**
 * Utility methods for manipulating semantic versions.
 */
class SemanticVersion {
    
    /**
     * Given a version, generate a loose ^major.minor constraint.
     *
     * @param string $version
     *   Semantic version string. Example: 9.5.0-beta23.
     *
     * @return string
     *   Constraint string for major and minor. Example: ^9.5
     */
    public static function majorMinorConstraint(string $version) : string {
        preg_match('/^(\\d+)\\.(\\d+)\\.\\d+/', $version, $matches);
        return '^' . $matches[1] . '.' . $matches[2];
    }

}