# Changelog All notable changes to the `l3packages` bundle since the start of 2018 will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), this project uses date-based 'snapshot' version identifiers. ## [Unreleased] ## [2019-05-28] - Remove stray spaces in processor information ## [2019-05-03] ### Added - `xparse`: Support for `trace` package ## [2019-03-05] ### Added - `xparse`: b-type argument to grab body of environments ### Changed - `xparse`: make \IfBooleanTF safer - `xparse`: clearer error messages, especially for environments - `xparse`: when defining an environment, trim spaces at ends of its name ## [2018-09-24] ### Changed - `xparse`: put spaces back when a trailing optional arg is absent (fixes #466) ## [2018-08-23] ### Added - `CHANGELOG.md` (fixes #460) ## [2018-05-12] ### Changed - Track changes in primitive naming in `l3kernel` ## [2018-04-30] ### Changed - `xparse`: allow spaces before trailing optional arguments, with new "!" modifier to control behavior - Switch to ISO date format - Improve cross-module use of internal functions [Unreleased]: https://github.com/latex3/latex3/compare/2019-05-28...HEAD [2019-05-28]: https://github.com/latex3/latex3/compare/2019-05-03...2019-05-28 [2019-05-03]: https://github.com/latex3/latex3/compare/2019-03-05...2019-05-03 [2019-03-05]: https://github.com/latex3/latex3/compare/2019-09-24...2019-03-05 [2018-09-24]: https://github.com/latex3/latex3/compare/2018-08-23...2018-09-24 [2018-08-23]: https://github.com/latex3/latex3/compare/2018-05-12...2018-08-23 [2018-05-12]: https://github.com/latex3/latex3/compare/2018-04-30...2018-05-12 [2018-04-30]: https://github.com/latex3/latex3/compare/2017-12-16...2018-04-30