Can you clarify the semver meaning of the >= operator and what is the highest version it permits?

It's commonly known that when using symbols like ^, it represents anything up to the next major version, and ~ means only patches. However, there seems to be a lack of clarity regarding what the maximum version is when utilizing >=.

So, how should we interpret >=? In other words, what is the highest version permitted?

{

  "foo": "^1.1.1", // packages from 1.1.1 and less than 2.0.0
  "bar": "~1.1.1", // packages from 1.1.1 and less than 1.2
  "bar": ">=1.1.1" // packages from 1.1.1 and less than ?
}

Answer №1

When it comes to the >= comparator, it is as straightforward as you might imagine:

  • >= Greater than or equal to

This definition does not have a maximum limit.

If you want to set a maximum version number, one method is to combine it with another comparator using whitespace (e.g., ) to form a comparator set, which entails

A comparator set is fulfilled by the intersection of all the comparators included in it.

For instance, if you need a version higher than or equal to 1.2.0 but less than 5.0.0, your complete semver range would be

>=1.2.0 <5.0.0

It's important to note that all ranges can meet with primitive comparators (<, <=,>, >=, or =), however platforms like NPM support advanced range syntax that simplifies down to primitive comparators in predictable ways. Here are some alternative examples you may prefer, but remember, there is no rigid syntax requirement. You can opt for what you find most readable.

Hyphen Ranges X.Y.Z - A.B.C

1.2.3 - 2.3.4>=1.2.3 <=2.3.4

X-Ranges 1.2.x 1.X 1.2.* *

1.x>=1.0.0 <2.0.0

Tilde Ranges ~1.2.3 ~1.2 ~1

~1.2.3>=1.2.3 <1.3.0

Caret Ranges ^1.2.3 ^0.2.5 ^0.0.4

^1.2.3>=1.2.3 <2.0.0

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