message: changelog: 0.2.9
diff: -TBD
  -===
  +0.2.9 (2018-03-12)
  +==================
  +This release introduces a new nightly only feature, `unstable`, which enables
  +SIMD optimizations for certain types of regexes. No additional compile time
  +options are necessary, and the regex crate will automatically choose the
  +best CPU features at run time. As a result, the `simd` (nightly only) crate
  +dependency has been dropped.
  +
  +New features:
  +
  +* [FEATURE #456](https://github.com/rust-lang/regex/pull/456):
  + The regex crate now includes AVX2 optimizations in addition to the extant
  + SSSE3 optimization.
  +
  Bug gixes:
  * [BUG #455](https://github.com/rust-lang/regex/pull/455):
  