# optional 2.0.1
* Remove placeholder vignette title
* Replace verbatim classes comparisons with `inherits()`

# optional 2.0
* NOT COMPATIBLE WITH VERSIONS 1.x
* Replace function `some()` with the type wrapper `option()`
* `some()` is now used to check the status of an optional object

# optional 1.1
* Add a fall-through possibility for pattern matching with the `fallthrough()` function
* `match_with()` now returns a concatenation of return values from matched result-functions
* Values comparison in `match_with()` are now direct object comparisons instead of near equality checks

# optional 1.0
Initial release