Semver cheatsheet

Given a version number MAJOR.MINOR.PATCH:

MAJOR	incompatible API changes
MINOR	add functionality (backwards-compatible)
PATCH	bug fixes (backwards-compatible)

 1.2.3 =1.2.3 >1.2.3 <1.2.3 >=1.2.3 

Note that suffixed versions (1.2.3-rc1) are not matched.

Range	Description	Notes
~1.2.3	is >=1.2.3 <1.3.0
^1.2.3	is >=1.2.3 <2.0.0
^0.2.3	is >=0.2.3 <0.3.0	(0.x.x is special)
^0.0.1	is =0.0.1	(0.0.x is special)
^1.2	is >=1.2.0 <2.0.0	(like ^1.2.0)
~1.2	is >=1.2.0 <1.3.0	(like ~1.2.0)
^1	is >=1.0.0 <2.0.0
~1	same
1.x	same
1.*	same
1	same
*	any version
x	same

Range	Description
1.2.3 - 2.3.4	is >=1.2.3 <=2.3.4

Partial right

Range	Description
1.2.3 - 2.3	is >=1.2.3 <2.4.0
1.2.3 - 2	is >=1.2.3 <3.0.0

Partial left

Range	Description
1.2 - 2.3.0	is 1.2.0 - 2.3.0

When the right is partial (eg, 2.3), missing pieces are assumed to be x (eg, 2.3.x).

When the left is partial (eg, 1.2), missing pieces are assumed to be 0 (eg, 1.2.0).

Range	Description
>=0.14 <16	And (space-separated)
0.14.x || 15.x.x	Or (pipe-separated)

1.2.3-prerelease+build 

^	means “compatible with”
~	means “reasonably close to”
0.x.x	is for “initial development”
1.x.x	means public API is defined