All items exported from num-integer, num-iter, and num-traits are still semver-compatible with those exported by num 0.1. If you have these as public dependencies in your own crates, it is not a breaking change to move to num 0.2. However, this is not true of num-bigint, num-complex, or num-rational, as those exported items are distinct in this release.
A few common changes are listed below, but most of the development happens in the individual sub-crates. Please consult their release notes for more details about recent changes: num-bigint, num-complex, num-integer, num-iter, num-rational, and num-traits.
num-integer, num-iter, and num-traits are still compatible with num 0.1.BigInt, BigUint, Complex, and Ratio all implement Sum and Product.num now requires rustc 1.15 or greater.num-bigint, num-complex, and num-rational have all been updated to 0.2.num-* sub-crates using cargo features. If you need that control, please use those crates directly.std feature, enabled by default, along with the implication that building without this feature makes this a #![no_std] crate. num::bigint is not available without std, and the other sub-crates may have limited functionality.serde dependency has been updated to 1.0, still disabled by default. The rustc-serialize crate is no longer supported by num.rand dependency has been updated to 0.5, now disabled by default. This requires rustc 1.22 or greater for rand's own requirement.Contributors: @CAD97, @cuviper, and the many sub-crate contributors!
Contributors: @cuviper
No prior release notes were kept. Thanks all the same to the many contributors that have made this crate what it is!