Hello there, I have spent some time playing around with boost.bloom and my review is ACCEPT. The library is very well written, provides intuitive interfaces that are already common in C++ and familiar to users, and the SIMD optimisations are very impressive. Documentation is exemplary, although I would suggest adding a short summary of how this is not a container despite the similarities in interface but how in practice it differs from a set, so the short of attention can better catch the gist of it. I feel the source code could have been better documented for future maintainers, but that’s of no importance overall. I looked into other implementations for bloom filters, and this boost implementation could be described as “very fancy”, however the user experience has no unnecessary clutter and is friendly enough to the non-expert. I particularly must admit I felt out of depth opining in the implementation in general beyond recognising this candidate stands out in its quality by comparison with other implementations. Bloom looks exactly like the sort of thing boost is known to provide model implementation for, and it seems to be a perfect candidate to boost. A sort of “going back to its roots” IMO. Claudio