Updated in this release:

* The buffer manager is more sane about allocating memory. It will limit growth to doubling. Previously if you asked it to allocate enough memory to hold size_t.max, it would try to do it. I'm still mulling over how to handle specific requests (i.e. I *know* I want this much data to start out with).
* Added support for using Allocator.realloc. This means if you use Mallocator as your buffer allocator, it will use realloc if possible. This can generate huge speedups as less copying may be necessary.
* unzip now supports concatenated gzip streams. This was a bit complex, and I've only tested it on one file, so please report bugs if you find any.
* Fixed some possible integer overflow bugs.

-Steve

http://code.dlang.org/packages/iopipe
https://github.com/schveiguy/iopipe/releases/tag/v0.0.3