About composer version stability

The following tutorial column of composer will introduce to you the version stability of composer. I hope it will be helpful to friends in need!

About composer version stability

If you do not explicitly specify the version For stability, Composer will internally specify -dev or -stable by default based on the operator used. For example:

##ConstraintInternal Constraint##>1.2>1.2.0.0-stable##>=1.2##>=1.2.0.0-stable ##<1.3.0.0-dev<=1.3.0.0-stable>=1.0.0.0-dev <3.0.0.0-dev##~1.3 >=1.3.0.0-dev <2.0.0.0-dev1.4.*>=1.4.0.0-dev <1.5.0.0-devThe minimum-stability configuration item defines the default behavior of the package's stability selection when selecting a version. The default is stable. Its values ​​are as follows (ordered by stability): dev, alpha, beta, RC and stable.

1.2.3	=1.2.3.0-stable
##> =1.2.0.0-dev	##>=1.2-stable
	<1.3
	<=1.3
	1 - 2
	##Example : 1.0 - 2.0If you want to specify the version as long as the stable version, you can add the suffix -stable after the version.

In addition to modifying this configuration to modify this default behavior, we can also use stability flags (such as @stable and @dev) to install a version with different stability compared to the default configuration. For example:

{
    "require": {
        "monolog/monolog": "1.0.*@beta",
        "acme/foo": "@dev"
    }
}

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