18.1.0

Features

• filter: Add support to group by ISO week (--group-by week) during subsampling. #1067 (@victorlin)

Bug Fixes

• filter: Fixed unintended behavior in which grouping by day would "work" when used with month and/or year. Updated so it will be ignored. #1070 (@victorlin)
• filter: Fixed unintended behavior in which grouping by month with ambiguous years would "work". Updated so date ambiguity is checked properly for all generated columns. #1072 (@victorlin)