Summary

This is our second to last alpha with massive improvements to user experience and stability. 🛠

Check out the release notes down below. 😄

Installers

• OS X/macOS
  • Installer
  • Zip
• Windows
  • Installer
  • Zip
• Linux
  • Debian package (Debian, Ubuntu, Mint)
  • App Image

Disclaimer

The only bundled kernel is JavaScript (node.js). To detect your current python kernel you will need to run

python -m ipykernel install --user

at the command line. For other kernels, check out https://nteract.io/kernels.

Gratitude

This release wouldn't be as amazing without all the wonderful contributors over the past six months (wow did it take a while to ship this one!). I'm loving this version and hope you do too. ❤️

People who contributed to this release:

• Safia Abdalla
• Ionică Bizău
• Alexander Booth
• Matthias Bussonnier
• John Detlefs
• Jonathan Frederic
• M. Scott Ford
• Lukas Geiger
• Al Johri
• Kyle Kelley
• Joshua Kornblum
• Randall Koutnik
• Gerald Nash
• Madhumitha Natarajan
• Grant Nestor
• Ryan Palo
• Dominique Peretti
• Min RK
• Peggy Rayzis
• Michael Stewart
• Marc Udoff
• Enrique Vidal
• Carol Willing

Bots who contributed to this release:

• Appveyor
• Codecov
• Greenkeeper
• Travis CI

Features

GeoJSON customization

The GeoJSON output type now accepts url_template and layer_options metadata to customize the geojson view. Check out the Notebook:

(#1585, #1579)

Built in Table Viewer

In coordination with Pandas and Frictionless Data, we have a built in table viewer (#1534).

Code Introspection

Get documentation inline by hitting a hot key (cmd-. on macOS) (#1665, #1488)

One Dark Theme

Straight from Atom's default theme, it's one dark theme (#1756).

Other features

• Celltoolbar is now transparent when not hovered so you can see your text (#1615)

• Support more metadata for input/source hiding (#1803, #1697)

• Cell focus no longer shows up on printed copies (#1788)

• Bottom of notebook has extra padding to allow last cell to be at the top (#1781, #1463)

• Vega and VegaLite outputs match official spec now (#1765)

• Prompt before closing (#1759)

• Report nteract version in the notebook metadata (#1747)

• Greatly improve height of display area (#1716)

• Improve performance of rendering text outputs (#1718, #1699)

• Expand collapsed cells on PDF export (#1671)

• Custom completion with recent IPython (#1650)

• Show celltoolbar on hover in addition to focus (#1618)

Make it easier to reach for an action of a cell with one less click.

• Fade octicon with transitions

Smooooooth operations

• nsis:perMachine (#1447)

• (Partial) support of raw cells (#1597, #1477)

• v3 Notebooks are converted to v4 notebooks (#1489)

• File -> Exit (Alt-F4) for win32 platforms (#1547)

• cmd+enter can now run cells on macOS (#1541)

Bug fixes 🐛

• nteract CLI now works on *nix systems (#1581)
• Complete revamp of scrolling behavior on cell focus (#1850)
• Support tooltip on Windows (#1669)
• Fix regression on viewing markdown rendering when cell not focused (#1846)
• Updated example notebooks (#1845, #1585)
• Surrogate pair handling (#1840)
• Improve kernel shutdown lifecycle (#1837, #1839)
• Data shape inference fixed on data resource transform (#1838)
• Scrollbar no longer visible after expansion (#1627)
• Cell evaluation status reflects overall state properly (#1608)
• Images are no longer centered by default (#1500)
• Feedback on save is more accurate (#1562)

Under the hood 🚗

• Optimize our app build even more than last time (#1847, #1780, #1771, #1613)
• Improved app building (#1826, #1774, #1613)
• All our modules aim to be server side renderable (primarily for commuter)
• Compatibility with node 8 & npm5 (#1769, #1738)
• Transforms and notebook model are (internally) deprecating usage of Immutable.JS (#1726)
• Sourcemaps!!! (#1708)
• Up to date with React 15.6, ready for 16 to land (#1676, #1681, more)
• We switched to prettier for js and json formatting during this development cycle, ❤️ it

Announcing new packages

TBD