On behalf of maintainers I'm happy to announce that bytestring-0.11.1.0 (http://hackage.haskell.org/package/bytestring-0.11.1.0) is finally released. Highlights from the changelog (https://github.com/haskell/bytestring/blob/0.11.1.0/Changelog.md): * Performance improvements for * strict `map` (up to 30% faster), * strict `pack`, `words`, `intersperse`, `findIndex` and `findIndexEnd`, * lazy `takeWhile`, `dropWhile`, `break`, `group` and `groupBy`, * strict and lazy `stimes`. * New functions: * `compareLength` to compare lengths lazily, * `packZipWith` to zip two `ByteString`, * `findIndexEnd` for `Char8` flavours of `ByteString`, * `elemIndexEnd` and `unzip` for `Data.ByteString.Lazy.Char8`, * `takeEnd` and `dropEnd` for strict `ByteString`. * Improvements for `ShortByteString` * `SBS` constructor is now exposed directly from `Data.ByteString.Short`, * `fromShort` does not reallocate its argument, if it is already pinned. Many people contributed their time and effort to make this release happen. Just to name a few in no particular order, mostly according to `git log`: * Ben Gamari * Callan McGill * Dmitry Ivanov * Eli Kogan-Wang * gutjuri * Jaro Reinders * John Ericson * Moritz Angermann * Simon Jakobi * Sylvain Henry * Viktor Dukhovni * Vincent Orr * me Here is an incantation for `stack` folks: resolver: nightly-2021-02-12 packages: - . extra-deps: - bytestring-0.11.0.0 - binary-0.8.8.0 - directory-1.3.6.1 - text-1.2.4.1 - unix-2.7.2.2 - process-1.6.11.0 allow-newer: true Best regards, Andrew