# Road map

## Future milestones

Version  | Goal
---------|----------------------------------------------------------------------
?        | Use S3 classes instead of a lists
?        | Use S4 classes instead of S3 classes

There are some minor things that can be added, see 'How can I indicate a feature that I miss?'
to request so.

## Past milestones

Version  | Goal
---------|----------------------------------------------------------------------
`v2.0`   | allow tip dating
`v1.12`  | ~~support two alignments~~
`v1.12.1`| simpler interface for specifying a fixed crown age
`v1.12.2`| remove cyclic dependencies on other related packages
`v1.13`  | allow one or two MRCA nodes (also called 'calibration nodes')
