This Week in Nushell #348

Published Monday, 2026-04-27, including PRs merged Friday, 2026-04-17 through Thursday, 2026-04-23.

Nushell

• @freepicheep:

  • fixed module description parsing with leading shebang (#18106)

• @fdncred:

  • bumped reedline to latest commit (#18099)
  • fixed issue with sigil recursion (#18084)
  • updated Rust toolchain to 1.93.1 + some deps (#18077)
  • updated nushell to latest reedline commit 4ffb1d3 (#18067)
  • enhanced ansi gradient command with named gradients and improved options (#18058)

• @Bahex:

  • refactored to prefer borrowed strings (#18097)
  • refactored/updated some old tests to the newer in process style (#18096)
  • replaced FindMapResult with ControlFlow (#18094)
  • made metadata access able to modify $env (#18085)

• @cptpiepmatz:

  • updated random choice type signature (#18093)
  • bumped rustls-webpki (#18092)
  • implemented Debug for EngineState and derived more Debug impls (#18091)
  • tightened up nu_mcp::evaluation::test_cancellation_promotes_to_background_job test (#18083)
  • added Command: Any and CustomValue: Any (#18076)

• @WindSoilder:

  • made finally not affect return value (#18075)

• @orbisai0security:

  • fixed variable interpolation ${{ in release-msi.yml (#18074)

• @Tyarel8:

  • added progressbar osc 9;4 wrapper to std-rfc (#18073)
  • fixed warning when not compiling with mcp (#18056)

• @andrewgazelka:

  • documented preferring | complete over o+e>| complete in nu-mcp (#18071)
  • removed timeout_secs param in nu-mcp, relying on NU_MCP_PROMOTE_AFTER (#18070)
  • raised default promote-after to 2m and added timeout_secs param in nu-mcp (#18059)
  • overhauled nu-mcp instructions sent to MCP clients (#18057)

• @kaathewisegit:

  • fixed backtabbing in --multi mode in input list (#18068)

• @OneProgGit:

  • fixed typo (#18066)

• @Juhan280:

  • fixed failing test for grid command (#18065)

• @app/dependabot:

  • bumped similar from 3.0.0 to 3.1.0 (#18087)
  • bumped rmcp from 1.3.0 to 1.5.0 (#18086)
  • bumped hashbrown from 0.16.1 to 0.17.0 (#18043)
  • bumped lean_string from 0.5.1 to 0.6.0 (#18042)

Nu_Scripts

• @jatinderjit:
  • updated tldr completions for commands (#1249)
  • fixed wordle (#1247)

Tree-sitter

• @Tyarel8:
  • added optional sigil % to start of commands (#248)

Documentation

• @fdncred:

  • updated startup stages to include sourcing of autoload directories (#2158)

• @NotTheDr01ds:

  • added a few more TWiNs (#2157)

• @istar410:

  • fixed keychain command (#2156)

reedline

• @tisonkun:

  • fixed always reset undo stack on Ctrl+C event (#1058)
  • gracefully handled ReedlineEvent::CtrlC (#1051)

• @Juhan280:

  • made keybindings crate only used for helix (#1057)
  • added vi normal mode o and O command (#1053)
  • deprecated get_reedline_reedline_events, get_reedline_edit_commands and get_reedline_prompt_edit_modes (#1052)
  • made ReedlineEvent::ExecuteHostCommand return Signal::HostCommand instead of Signal::Success (#1049)

• @SAY-5:

  • fixed divide-by-zero in estimate_single_line_wraps for 0-column terminals (#1055)

• @schlich:

  • added basic mode switching in helix mode (#1039)