SemVer comparison operator: =, >, >=, <, <=, ~, ^, *.

Op::Exact

•  =I.J.K — exactly the version I.J.K
•  =I.J — equivalent to >=I.J.0, <I.(J+1).0
•  =I — equivalent to >=I.0.0, <(I+1).0.0

Op::Greater

•  >I.J.K
•  >I.J — equivalent to >=I.(J+1).0
•  >I — equivalent to >=(I+1).0.0

Op::GreaterEq

•  >=I.J.K
•  >=I.J — equivalent to >=I.J.0
•  >=I — equivalent to >=I.0.0

Op::Less

•  <I.J.K
•  <I.J — equivalent to <I.J.0
•  <I — equivalent to <I.0.0

Op::LessEq

•  <=I.J.K
•  <=I.J — equivalent to <I.(J+1).0
•  <=I — equivalent to <(I+1).0.0

Op::Tilde ("patch" updates)

Tilde requirements allow the patch part of the semver version (the third number) to increase.

•  ~I.J.K — equivalent to >=I.J.K, <I.(J+1).0
•  ~I.J — equivalent to =I.J
•  ~I — equivalent to =I

Op::Caret ("compatible" updates)

Caret requirements allow parts that are right of the first nonzero part of the semver version to increase.

•  ^I.J.K (for I>0) — equivalent to >=I.J.K, <(I+1).0.0
•  ^0.J.K (for J>0) — equivalent to >=0.J.K, <0.(J+1).0
•  ^0.0.K — equivalent to =0.0.K
•  ^I.J (for I>0 or J>0) — equivalent to ^I.J.0
•  ^0.0 — equivalent to =0.0
•  ^I — equivalent to =I

Op::Wildcard

•  I.J.* — equivalent to =I.J
•  I.* or I.*.* — equivalent to =I