# This week in Nu #39
- filalex added `--regex` to the `parse` command ([#1863](https://github.com/nushell/nushell/pull/1863))
- mhmdanas began abstracting code blocks in the book so languages could share examples ([#99](https://github.com/nushell/book/pull/99))
- fdnced improved the row auto-rotation heuristic ([#1861](https://github.com/nushell/nushell/pull/1863)), added instructions for pipenv to nu_jupyter ([#1](https://github.com/nushell/nu_jupyter/pull/1))
- zombie110year translated the first few chapters of the book to simplified Chinese ([#97](https://github.com/nushell/book/pull/97))
- AaronC81 improved completions for paths with spaces ([#1858](https://github.com/nushell/nushell/pull/1863)), bumped the minimum Rust version in the README ([#1851](https://github.com/nushell/nushell/pull/1851))
- ryespeg finished documenting the comparisons of Nu with a set of functional and imperative languages ([#93](https://github.com/nushell/book/pull/93))
- jonathandturner added some notes on Nu's current progress to the README ([#1854](https://github.com/nushell/nushell/pull/1854)), added string interpolation (eg ls | echo `{{name}} is a path`) ([#1849](https://github.com/nushell/nushell/pull/1849)), updated `format` to accept variables also ([#1842](https://github.com/nushell/nushell/pull/1842)), moved error reporting from language-reporting to codespan ([#1825](https://github.com/nushell/nushell/pull/1825)), fixed a bug where starship wasn't getting sent the pwd ([#1822](https://github.com/nushell/nushell/pull/1822)), bumped dependencies ([#1809](https://github.com/nushell/nushell/pull/1809)), moved plugins to use modern it-expansion ([#1807](https://github.com/nushell/nushell/pull/1807)), added support for `$(block)` form for argument command invocation ([#1801](https://github.com/nushell/nushell/pull/1801))
- JosephTLyons added a count to `histogram` ([#1853](https://github.com/nushell/nushell/pull/1853)), made `to json` pretty print indentation configurable ([#1818](https://github.com/nushell/nushell/pull/1818)), added pretty printing to `to json` ([#1812](https://github.com/nushell/nushell/pull/1812)), cleaned up a blog post ([#23](https://github.com/nushell/blog/pull/23))
- 1ntEgr8 added a `--save` flag to `alias` to make it easier to save aliases to config ([#1852](https://github.com/nushell/nushell/pull/1852))
- cjpearce fixed the missing errors for argument invocation (eg `$(bad command)` now errors correctly) ([#1849](https://github.com/nushell/nushell/pull/1849))
- aeosynth changed the default history to 100k lines ([#1845](https://github.com/nushell/nushell/pull/1845))
- lightclient added support for setting the max history in the config ([#1837](https://github.com/nushell/nushell/pull/1837))
- thegedge removed the assuming that Value::Nothing could be used as zero ([#1836](https://github.com/nushell/nushell/pull/1836))
- matsuu fixed the canonical url for the website ([#48](https://github.com/nushell/nushell.github.io/pull/48))
- Samboy218 added documentation for the `no_auto_pivot` setting ([#1828](https://github.com/nushell/nushell/pull/1828))
- coolshaurya added docs for `shuffle` ([#1824](https://github.com/nushell/nushell/pull/1824)), removed the `-n` flag from `shuffle` ([#1823](https://github.com/nushell/nushell/pull/1823)), fixed the `insert` command to work as documented ([#1815](https://github.com/nushell/nushell/pull/1815))
- thegedge, JosephTLyons added more command examples ([#1830](https://github.com/nushell/nushell/pull/1830), [#1821](https://github.com/nushell/nushell/pull/1821))
- jzaefferer added docs to the `start` command ([#1816](https://github.com/nushell/nushell/pull/1816))
- fusepilot helped fix a typo in the contributor book ([#25](https://github.com/nushell/contributor-book/pull/25))
- andrasio removed the "test-bins" feature to make it easier to run the test suite ([#1820](https://github.com/nushell/nushell/pull/1820)), translated chapters of the book to Spanish ([#95](https://github.com/nushell/book/pull/95))
- johnterickson fixed a bug that caused `parse` to panic in some situations ([#1814](https://github.com/nushell/nushell/pull/1814))
- klnusbaum added better color palette abstraction to help colors be configurable in the future ([#1813](https://github.com/nushell/nushell/pull/1813))
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