# Presto 316 Documentation

## 12.95. Release 0.144.5

## General Changes

- Fix window functions to correctly handle empty frames between unbounded and bounded in the same direction. For example, a frame such as `ROWS BETWEEN UNBOUNDED PRECEDING AND 2 PRECEDING` would incorrectly use the first row as the window frame for the first two rows rather than using an empty frame.
- Fix correctness issue when grouping on columns that are also arguments to aggregation functions.