v0.6.1

Changes

🚀 Features

• Tweak callback API @benfred (#612)
• Allow GPU models to train on sparse matrices that exceed the size of available GPU memory @benfred (#605)
• Fit callback in BPR model @apat1n (#590)

🐛 Bug Fixes

• Handle more than 2**31 parameters on GPU models @benfred (#599)
• Fix recalculate_item / recalculate_user on the GPU @benfred (#598)

📄 Documentation

• Minor documentation fixes @benfred (#609)
• docs: Fix a few typos @timgates42 (#596)