v4.0.0

   🚨 Breaking Changes

• make cache server stateless & native multipart uploads  -  by @LouisHaftmann in #70 (679e1)
• prune caches on version change  -  by @LouisHaftmann in #76 (ef023)

   ✨ Enhancements

• generate random url for download  -  by @LouisHaftmann (f24b6)

   🐛 Fixes

• don't try pruning cache if no stale keys exist  -  by @LouisHaftmann (10b13)

   🔧 Chore

• release: v4.0.0  -  (4e9fa)

   📖 Documentation

• update to match v4  -  by @LouisHaftmann in #77 (1b474)

    View changes on GitHub