BUG: Series.apply fails on empty Series #2815
BUG: DataFrame.plot does not respect integer index as x-ticks #2726
ENH: don't make unnecessary data copy in groupby
BUG: Period slicing with period_range returns error
BUG: Slicing and setitem inconsistent with getitem using DateTimeIndex with timezone
BUG: Timestamp constructor not handling timezone conversions correctly
BUG: naive datetime keys not localized to DateTimeIndex tz
Small tweaks to PR #2785