Composer Packages with Version Constraints

Control which versions of Composer packages should be installed in your project using version constraints.

{
    "require": {
        "livewire/livewire": "^2.0"
    }
}

When specifying "livewire/livewire": "^2.0" like this in the composer.json file, it ensures Composer installs version 2.0 or higher.

Constraints that can be used :

1. ^ (Caret Constraint):

Most recent minor version of the specified release series. Here specified series is 2.x means 2.1, 2.2 upto 2.9.

"require": {
        "livewire/livewire": "^2.0"
    }

2. ~ (Tilde Constraint):

Most recent patch version of the specified release series.

~2.0 version includes versions 2.0, 2.1, 2.2 ... , but not including, 3.0

~1.2 allows versions 1.2, 1.2.1, 1.2.2 ..., but not including, 1.3

"require": {
        "livewire/livewire": "~2.0"
    }

3. >= (Greater Than or Equal To)

Minimum acceptable version. >=1.0 allows any version 1.0 or higher.

"require": {
        "livewire/livewire": ">=1.0"
    }

4. <= (Less Than or Equal To) :

Maximum acceptable version. <=2.0 allows any version less than 2, including 2.0.

"require": {
        "livewire/livewire": "<=2.0"
    }