# every release
 - update documentation: README, vignettes, package doc
 - update hyperlinks (to e.g. latest CF version)

# 1.6
 - User-defined calendar
 - equidistant by element and calendar

# Further away
 - cut() needs to support "2 days" etc
 - filter() like tidyverse -> CFsubset
 - CFfactor() can use epochs with lower resolution such as [year, month] for 3-hr data: e.g. daily avg per month per epoch
