<commit_before># v1.5.1
- Fix issue with `pause` in `queue` with concurrency enabled (#946)
- `while` and `until` now pass the final result to callback (#963)

# v1.5.0

- Added `transform`, analogous to [`_.transform`](http://lodash.com/docs#transform) (#892)
- `map` now returns an object when an object is passed in, rather than array with non-numeric keys. `map` will begin always returning an array with numeric indexes in the next major release. (#873)
- `auto` now accepts an optional `concurrency` argument to limit the number of  running tasks (#637)
- Added `queue#workersList()`, to retrieve the list  of currently running tasks. (#891)
- Various code simplifications (#896, #904)<commit_msg>update changelog for 1.5.1<commit_after># v1.5.1
- Fix issue with `pause` in `queue` with concurrency enabled (#946)
- `while` and `until` now pass the final result to callback (#963)
- `auto` will properly handle concurrency when there is no callback (#966)
- `auto` will now  properly stop execution when an error occurs (#988, #993)
- Various doc fixes (#971, #980)

# v1.5.0

- Added `transform`, analogous to [`_.transform`](http://lodash.com/docs#transform) (#892)
- `map` now returns an object when an object is passed in, rather than array with non-numeric keys. `map` will begin always returning an array with numeric indexes in the next major release. (#873)
- `auto` now accepts an optional `concurrency` argument to limit the number of  running tasks (#637)
- Added `queue#workersList()`, to retrieve the list  of currently running tasks. (#891)
- Various code simplifications (#896, #904)
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