message: changelog 1.0.0
diff: +1.0.0 (2018-05-01)
  +==================
  +This release marks the 1.0 release of regex.
  +
  +While this release includes some breaking changes, most users of older versions
  +of the regex library should be able to migrate to 1.0 by simply bumping the
  +version number. The important changes are as follows:
  +
  +* We adopt Rust 1.20 as the new minimum supported version of Rust for regex.
  + We also tentativley adopt a policy that permits bumping the minimum supported
  + version of Rust in minor version releases of regex, but no patch releases.
  + That is, with respect to semver, we do not strictly consider bumping the
  + minimum version of Rust to be a breaking change, but adopt a conservative
  + stance as a compromise.
  +* Octal syntax in regular expressions has been disabled by default. This
  + permits better error messages that inform users that backreferences aren't
  + available. Octal syntax can be re-enabled via the corresponding option on
  + `RegexBuilder`.
  +* `(?-u:\B)` is no longer allowed in Unicode regexes since it can match at
  + invalid UTF-8 code unit boundaries. `(?-u:\b)` is still allowed in Unicode
  + regexes.
  +* The `From<regex_syntax::Error>` impl has been removed. This formally removes
  + the public dependency on `regex-syntax`.
  +* A new feature, `use_std`, has been added and enabled by default. Disabling
  + the feature will result in a compilation error. In the future, this may
  + permit us to support `no_std` environments (w/ `alloc`) in a backwards
  + compatible way.
  +
  +For more information and discussion, please see
  +[1.0 release tracking issue](https://github.com/rust-lang/regex/issues/457).
  +
  +
  0.2.11 (2018-05-01)
  ===================
  This release primarily contains bug fixes. Some of them resolve bugs where
  