Breaking

Require Node 16
Deleted collect and fold functions and types in favor of generalizing reduce functions and types
- Deleted:
  - collect, collectAsync, and collectConcur (use reduce, reduceAsync, and reduceConcur instead)
  - fold, foldAsync, and foldConcur (use reduce, reduceAsync, and reduceConcur instead)
  - counting (use toCount() instead)
  - folding (pass a reducer object instead)
  - grouping (use toGrouped(...) instead)
- All prior collector variables (e.g. toMap, toSet, etc.) are now reducer functions. Use like reduce(toMap())!
Made function naming consistently imperative by renaming past-tense functions to imperative:
- cached -> cache
- chunked -> chunk
- indexed -> index
- windowed -> window
- without -> exclude
Made various functions better mimic JavaScript array methods by looking for falsy/truthy values instead of strictly false/true

Minor

New functions:

consume, consumeAsync, and consumeConcur (iterates over an iterable; use to force it to compute if it's lazy)
filterMap, filterMapAsync, and filterMapConcur (return null or a value from the callback; returns mapped iterable containing non-null values)
mapReducer and mapAsyncReducer (mapping methods for new reducer concept)
opaque, opaqueAsync, and opaqueConcur (takes an iterable object and returns an object that's just an iterable; for example, if you pass an array you'll get just an iterable back)
sum, sumAsync, sumConcur
Reducers! Pass them to reduce, reduceAsync, and reduceConcur
- toArray
- toCount
- toGrouped
- toJoin
- toMax
- toMin
- toMinMax
- toMinMaxBy
- toMinMaxByAsync
- toMinMaxWith
- toMinMaxWithAsync
- toMultiple
- toObject
- toSet
- toSum
- toWeakMap
- toWeakSet

Full Changelog: v1.0.6...v2.0.0