# DEVONthink To Go 4.2 Chandra

**URL:** <https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281>\
**Category:** Blog\
**Created:** [July 8, 2026, 12:37pm UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281 "2026-07-08T12:37:19Z")\
**Posts on this page:** 13\
**Page:** 1

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**Author:** ![eboehnisch](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/eboehnisch/32/38699_2.png) [@eboehnisch](https://discourse.devontechnologies.com/u/eboehnisch)\
**Post date:** [July 8, 2026, 12:37pm UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/1 "2026-07-08T12:37:19Z")

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[DEVONthink To Go 4.2 Chandra](https://www.devontechnologies.com/apps/devonthinktogo/releases)\* introduces Zen mode for _distraction-free reading and editing_, a redesigned _icon view_, and an _updated OCR engine_ with improved accuracy and language support. Create new images or edit existing pictures with the new _AI image creation popover_, and add notes or scan documents right from the lock screen or Control Center with _two new widgets_.

Quickly navigate your databases with your _favorites_ right on the databases list. _Color groups and tags_ and _order documents manually_ if needed. The chat can highlight text passages and ignores documents from _databases you exclude_. You can also open a chat for multiple selected documents. We’ve updated the support for many AI models, too, added _GPT 5.5 Pro and the Xiaomi models_, and removed outdated ones.

 ![](https://devontech-discourse.s3.dualstack.us-east-1.amazonaws.com/uploads/original/3X/7/d/7dd2f0570d7c68f7e19b914799488427634e0984.jpeg)

_Set a default font_ for text, Markdown, rich text, and formatted notes documents, and adjust the line height. _Floating statistics_ show character, word, and paragraph counts. If you’re working with Markdown, the renderer/parser of version 4.2 is _more compliant_ with common Markdown features, _faster_, and _more reliable_. We’ve also _revisited the search_ to make it more complete and more compatible with DEVONthink for Mac. It _finds documents with attached chats_, too.

In addition, we have _revised many icons and menu commands_ throughout the app for consistency. The main menu lets you directly access information about the app, the integrated help pages, _the tips we regularly post [on our blog](https://www.devontechnologies.com/blog)_, and send us feedback.

Of course, we’ve improved the overall reliability and performance, and fixed bugs and glitches.

You can find a complete list of all improvements in _Settings \> Help \> Read Me_ inside the app. The [New & Improved](https://www.devontechnologies.com/apps/devonthinktogo/releases) page also highlights what’s new in each feature release. We recommend this update to all users of DEVONthink To Go. The App Store will either install the update automatically for you or you can find it in the _Updates_ area of the App Store app. If you are still using an older generation of DEVONthink To Go, version 4 is a new app and you’ll need to install it manually. DEVONthink To Go 4 is included with every license for [DEVONthink 4 Pro or Server](https://www.devontechnologies.com/apps/devonthink) for Mac as long as it receives updates.

\* _We dedicate this release to the Chandra X-ray Observatory, NASA’s flagship X-ray telescope launched in 1999 and itself named after the astrophysicist Subrahmanyan Chandrasekhar (1910–1995). Chandrasekhar determined the mass limit above which a white dwarf star cannot support itself against gravitational collapse, laying the groundwork for our understanding of neutron stars and black holes. His work reminds us that perseverance can reveal truths about the universe even long before anyone has the means to observe them._

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**Author:** ![Keither](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/k/f1d935/32.png) [@Keither](https://discourse.devontechnologies.com/u/Keither)\
**Post date:** [July 8, 2026, 1:12pm UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/2 "2026-07-08T13:12:25Z")

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I just tested Zen mode on my iPad and I already love it. It’s such a great quality-of-life upgrade when reading my markdown/pdf notes. Thank you DT team.

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**Author:** ![Glyn](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/glyn/32/15829_2.png) [@Glyn](https://discourse.devontechnologies.com/u/Glyn)\
**Post date:** [July 9, 2026, 9:13am UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/3 "2026-07-09T09:13:33Z")

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Thank you so so much for Zen mode. Reading PDF’s or watching karate videos in my database without UI around it is a godsend.

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**Author:** ![dansroka](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/dansroka/32/8651_2.png) [@dansroka](https://discourse.devontechnologies.com/u/dansroka)\
**Post date:** [July 9, 2026, 12:33pm UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/4 "2026-07-09T12:33:52Z")

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> [@eboehnisch](#):
>
> _Set a default font_ for text, Markdown, rich text, and formatted notes documents, and adjust the line height.

The line height setting does not seem to effect rich text docs (regardless of the value, new rich text docs have a line height of 1.0). Is this a typo in the notes, or a bug?

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**Author:** ![SlickSlack](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/s/74df32/32.png) [@SlickSlack](https://discourse.devontechnologies.com/u/SlickSlack)\
**Post date:** [July 9, 2026, 3:47pm UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/5 "2026-07-09T15:47:45Z")

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Noticing that something in my custom CSS is being interpreted differently after this update. It will take me some time to figure out what’s changed and what I have modify to get it back to how I liked it.  
Mainly I had it set to be white text on black with some colour for headings.  
After the update basic text and the heading colours work the same, but the TOC is blue text within a white box and table heading rows are also a white box with blue or black text in them and the content of the table is, I think, an unreadable black type on a black bg.  
I have an intermittent relationship with CSS as I don’t like to mess with it once I get it working and don’t remember all the nuances of what I tweaked to get it that way.  
There’s a train trip in my near future that will probably be me futzing with this.

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**Author:** ![BLUEFROG](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/bluefrog/32/135_2.png) [@BLUEFROG](https://discourse.devontechnologies.com/u/BLUEFROG)\
**Post date:** [July 9, 2026, 3:55pm UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/6 "2026-07-09T15:55:49Z")

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TOC line items are links so their default color is blue.

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**Author:** ![eboehnisch](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/eboehnisch/32/38699_2.png) [@eboehnisch](https://discourse.devontechnologies.com/u/eboehnisch)\
**Post date:** [July 10, 2026, 8:27am UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/7 "2026-07-10T08:27:02Z")

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The only change we made is that all default CSS definitions provided by DEVONthink To Go are now encapsulated into an `@layer` so that they are clearly separated.

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**Author:** ![aedwards](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/aedwards/32/413_2.png) [@aedwards](https://discourse.devontechnologies.com/u/aedwards)\
**Post date:** [July 10, 2026, 8:38am UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/8 "2026-07-10T08:38:00Z")

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It is a typo, line height settings only apply to Markdown and plain text documents as shown in the Text Settings.

 ![Screenshot 2026-07-10 at 09.37.01](https://devontech-discourse.s3.dualstack.us-east-1.amazonaws.com/uploads/original/3X/7/c/7c0e6eed5506502ef60a7df396cd83bb67e8a0b8.png)  
.

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**Author:** ![dansroka](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/dansroka/32/8651_2.png) [@dansroka](https://discourse.devontechnologies.com/u/dansroka)\
**Post date:** [July 10, 2026, 12:17pm UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/9 "2026-07-10T12:17:36Z")

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Drat. Thanks for clarifying.

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**Author:** ![vinschger](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/v/e47c2d/32.png) [@vinschger](https://discourse.devontechnologies.com/u/vinschger)\
**Post date:** [July 10, 2026, 6:33pm UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/10 "2026-07-10T18:33:56Z")

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what does that mean, or what exactly does this change for my customized css that I use? I am no css expert, therefore I do not know what a @layer is

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**Author:** ![BLUEFROG](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/bluefrog/32/135_2.png) [@BLUEFROG](https://discourse.devontechnologies.com/u/BLUEFROG)\
**Post date:** [July 10, 2026, 7:33pm UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/11 "2026-07-10T19:33:32Z")

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Nothing user-facing you need to concern yourself with.

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**Author:** ![SlickSlack](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/s/74df32/32.png) [@SlickSlack](https://discourse.devontechnologies.com/u/SlickSlack)\
**Post date:** [July 11, 2026, 3:48am UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/12 "2026-07-11T03:48:17Z")

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[https://www.w3schools.com/cssref/atrule\_layer.php](https://www.w3schools.com/cssref/atrule_layer.php)

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**Author:** ![chrillek](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/chrillek/32/29340_2.png) [@chrillek](https://discourse.devontechnologies.com/u/chrillek)\
**Post date:** [July 11, 2026, 6:30am UTC](https://discourse.devontechnologies.com/t/devonthink-to-go-4-2-chandra/87281/13 "2026-07-11T06:30:45Z")

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A `@layer` encapsulates CSS rules. Rules outside `@layer`s take precedence over those inside. By putting all default DTTG rules in a `@layer`, it should be easy to override them in user styles. And cleaner, too.