changes log

# 7.3.0

- Add `subset(r1, r2)` method to determine if `r1` range is entirely contained by `r2` range.

# 7.2.3

- Fix handling of `includePrelease` mode where version ranges like `1.0.0 - 2.0.0` would include `3.0.0-pre` and not `1.0.0-pre`.

# 7.2.2

- Fix bug where `2.0.0-pre` would be included in `^1.0.0` if `includePrerelease` was set to true.

# 7.2.0

- Add `simplifyRange` method to attempt to generate a more human-readable range expression that is equivalent to a supplied range, for a given set of versions.

# 7.1.2

- Remove fancy lazy-loading logic, as it was causing problems for webpack users.

# 7.1.0

- Add ‘require('semver/preload’)` to load the entire module without using lazy getter methods.

# 7.0.0

- Refactor module into separate files for better tree-shaking
- Drop support for very old node versions, use const/let, `=>` functions, and classes.

# 6.3.0

- Expose the token enum on the exports

# 6.2.0

- Coerce numbers to strings when passed to semver.coerce()
- Add `rtl` option to coerce from right to left

# 6.1.3

- Handle X-ranges properly in includePrerelease mode

# 6.1.2

- Do not throw when testing invalid version strings

# 6.1.1

- Add options support for semver.coerce()
- Handle undefined version passed to Range.test

# 6.1.0

- Add semver.compareBuild function
- Support `*` in semver.intersects

# 6.0

- Fix `intersects` logic.

  This is technically a bug fix, but since it is also a change to behavior that may require users updating their code, it is marked as a major version increment.

# 5.7

- Add `minVersion` method

# 5.6

- Move boolean `loose` param to an options object, with backwards-compatibility protection.
- Add ability to opt out of special prerelease version handling with the `includePrerelease` option flag.

# 5.5

- Add version coercion capabilities

# 5.4

- Add intersection checking

# 5.3

- Add `minSatisfying` method

# 5.2

- Add `prerelease(v)` that returns prerelease components

# 5.1

- Add Backus-Naur for ranges
- Remove excessively cute inspection methods

# 5.0

- Remove AMD/Browserified build artifacts
- Fix ltr and gtr when using the `*` range
- Fix for range `*` with a prerelease identifier