RMagick 7.0.1

Bug Fixes

• Image_gray_q changes the colour space of the image, instead of returning whether it's grayscale (#1788)
• Check for errors from ParseGeometry() (#1786)
• Fail explicitly when trying to install on JRuby (#1784)

New Contributors

• @ndossche made their first contribution in #1786

Full Changelog: RMagick_7-0-0...RMagick_7-0-1