Fifo.push() and Fifo.waitDrain() are removed. Use await fifo.send(item).
The package name is @harnyk/iter-helpers (it was @sweepbright/iter-helpers).
The package is ESM-first and also ships a CommonJS build.
Errors thrown by sources and mappers now reach the consumer in batch, interval, bufferize, concurrentMap and mux (before, the consumer could hang and the process could crash with an unhandledRejection).
concurrentMap starts working when it is consumed, not when it is applied.
take(0) and take(-1) are empty; range with a step pointing away from the end is empty, with a step of 0 it throws a RangeError.