---
title: v0.17.1 - 15th January 2017
slug: changelog/v0.17.1
---

* Improve error messages for invalid parameters.
  [@spikeon](https://github.com/spikeon)
  [#644](https://github.com/lovell/sharp/pull/644)

* Simplify expression for finding vips-cpp libdir.
  [#656](https://github.com/lovell/sharp/pull/656)

* Allow HTTPS-over-HTTP proxy when downloading pre-compiled dependencies.
  [@wangzhiwei1888](https://github.com/wangzhiwei1888)
  [#679](https://github.com/lovell/sharp/issues/679)
