---
title: v0.25.4 - 12th June 2020
slug: changelog/v0.25.4
---

* Allow libvips binary location override where version is appended.
  [#2217](https://github.com/lovell/sharp/pull/2217)
  [@malice00](https://github.com/malice00)

* Enable PNG palette when setting quality, colours, colors or dither.
  [#2226](https://github.com/lovell/sharp/pull/2226)
  [@romaleev](https://github.com/romaleev)

* Add `level` constructor option to use a specific level of a multi-level image.
  Expose `levels` metadata for multi-level images.
  [#2222](https://github.com/lovell/sharp/issues/2222)

* Add support for named `alpha` channel to `extractChannel` operation.
  [#2138](https://github.com/lovell/sharp/issues/2138)

* Add experimental `sharpness` calculation to `stats()` response.
  [#2251](https://github.com/lovell/sharp/issues/2251)

* Emit `warning` event for non-critical processing problems.
  [#2032](https://github.com/lovell/sharp/issues/2032)
