Lacuna Logo

Updates & Changelog

Stay up-to-date with all the latest features, improvements, and bug fixes in Lacuna. We're constantly working to make your book formatting experience better.

Version v2.7.6
Latest
Aug 18, 2026

New Features

  • TEXT CONVERSATIONSText bubbles, names, and receipts can each have their own fonts
  • DOCXImages can now be imported when they are inside table cells
  • Contributors now have roles when setting up book metadata
  • Added the ability to split sections: Place the cursor in the editor, then select "Split Section" from the separator dropdown in the menu bar
  • Added the ability to merge sections: Select contiguous sections in the side navigation bar, right-click, then select Merge N Sections

Bug Fixes

  • Adding new sections above and below specific sections no longer breaks when using them inside book parts and book volumes
  • Removing the chapter heading images works correctly again
  • PRINTFixed an issue that caused images to render at the smallest width % when using the same image in multiple places in your PDF
  • PRINTFixed an issue that caused text conversation bubbles that were larger than one page to not wrap to the next page correctly

Download Latest Version

Get the newest release for your operating system.

WindowsMac (Apple Silicon)Mac (Intel)
Version v2.7.5
Aug 14, 2026

New Features

  • PrintedEdges.com integration is now live! Go to Print Settings -> PrintedEdges to learn more.
  • STYLESThe New Style button now includes a "My Styles" section that lets you create one-click styles from your previous books.
  • TOCYou can now include all sections and book parts for book volumes at the root level of your book.
  • ENDNOTESBook volumes now have options and presets for the End Notes section types.
  • FOOTNOTESYou can now justify text and use paragraph breaks in your notes.
  • PRINTYou can now view your book in Grayscale mode in the print previewers.
  • TEXT CONVERSATIONSText messages that contain only emojis now have a new set of options for better flexibility.
  • PRINTPage margins now have extended features for managing page bleeds. You can choose between 0.125" or 3mm and whether to add bleed to all 4 edges or use the default 3
  • Endnotes are now searchable in the Search Text and Search Elements tabs.
  • Added English (Canada) to book metadata. It's effectively a wrapper around the en-US hyphenation but will be used in your book's metadata.
  • The ebook previewers will now remember the last device you were on per project.

Bug Fixes

  • DOCXFixed strikethroughs now importing correctly
  • DOCXFixed a bug that prevented non-tracked changes in your DOCX files from being imported.
  • DOCXFixed an issue where importing footnotes would erroneously add spaces after certain text blocks
  • Fixed an error that prevented certain PNGs from being accepted during import and upload
  • Removed the ability to remove images, ornamental breaks, and page breaks when selected and typing non-delete/backspace keys
  • Fixed an issue with two-page spreads and cover fill type not aligning correctly
  • Fixed the ebook PDF previewer not correctly resizing based on its trim size instead of the print's trim size
  • Importing styles and sections from another book project is now correctly undoable

Download Previous Version

Prefer this release? Roll back and download it for your operating system.

WindowsMac (Apple Silicon)Mac (Intel)
Version v2.7.2
Aug 5, 2026

We made a lot of changes behind the scenes with 2.7.0 in preparation for our v3 release in a few months. This update fixes the remaining issues we introduced.

New Features

  • Added delete icons to page breaks and ornamental breaks in the editor

Bug Fixes

  • Fixed a bug that prevented ePub previewers from loading correctly when freshly installed
  • Fixed copy styles from another book not importing everything correctly
  • MACOSFixed a bug that caused the program to close after startup

Download Previous Version

Prefer this release? Roll back and download it for your operating system.

WindowsMac (Apple Silicon)Mac (Intel)
Version v2.7.0
Aug 1, 2026

New Features

  • STYLES32 new pre-made styles showcase all the features we've added over the past year
  • BACKUPSProject backups are now available under the new Lacuna Settings (Cogwheel) button in the bottom-right menu
  • PRINTAdded safe and content zones as independent options when setting your print page margins
  • PRINTMargin guidelines now appear on top of your PDFs to show the safe and content zones, as well as the header and footer zones.
  • PRINTPrint previewers now let you select and copy text
  • PRINTAdded a new option to add watermarks to your pages (Print Settings -> Watermark)
  • PRINTNew page-count-aware safe zone helper panel for different distributors so you can set the safe zone exactly as print-on-demand companies require.
  • IMAGESFull-page images now have accurate safe and content zone separation
  • IMAGESFull-page images now support 'two-page spreads,' similar to page background split-images. On print, the left image will always start on the left page.
  • LISTSBullet lists now support custom markers and marker color changes
  • TEXT CONVERSATIONSYou can now control the spacing between chat bubbles
  • EBOOK PDFThere's now a new option to set the book cover to full bleed
  • EBOOK PDFYou can now set the margin along with the trim size
  • TITLE PAGE DESIGNERTitle page designer now includes rulers for greater precision
  • TITLE PAGE DESIGNERImproved final generation quality to minimize artifacts in eBooks
  • EPUBEbooks now use the same navigational section titles as those in the table of contents for better consistency
  • DOCXSmall caps created in Word documents are now recognized during import
  • DARK MODEImprovements to dark mode eBook previewers have been made. You will now see borders and certain font colors automatically appear in white for easier viewing.
  • LLAMAPRINTImproved font rendering to use all font features
  • Searching project-wide text and elements now syncs the editor and the previewer whenever you select search results
  • Settings panels now include width options and the ability to align to the left or right side of the editor window
  • If you try to undo a section you've created that has content changes, the application will now issue a warning, forcing you to make a decision so you don't lose sections by accident.
  • Various user interface upgrades across the application

Bug Fixes

  • All panels have been upgraded to include one-click undo/redo options. Some panels were split into multiple undo/redo commands, which led some users to spam undo and caused other issues.
  • TITLE PAGE DESIGNERFixed a variety of bugs while using shapes and making changes when the epub previewer is in use
  • Full-page images inside book volumes and book parts are now handled exactly like FPIs throughout the rest of your book.
  • Fixed a bug that could cause a crash during save, destroying the project file in certain scenarios.
  • Fixed a bug that caused the Command Palette (Ctrl+P or Cmd+P) to not show the expected result.
  • Fixed a bug that could lead to unapplied styling panels being saved to the book when auto-save was turned on.
  • Stopped PDF previewers from flashing 'PDF Preview Failed" when switching between preview devices.
  • Fixed various style panel issues that occurred when making changes with eBook previewers open.
  • Fixed a bug that caused the blockquote and handwriting blocks to lose focus when creating them with hotkeys.
  • Fixed a few issues with the color picker.
  • Deleting sections you're currently viewing no longer leaves them open with stale data.
  • Text conversations now sync correctly between the editor and the previewer (Ctrl+] and Cmd+])
  • Fixed a bug where typing an existing group's preset name in a different case could overwrite the underlying preset.
  • Generating an eBook PDF in the previewer no longer updates the project's global page count.
  • Fixed a bug that caused some trim sizes to switch to "Custom Trim Size".

Breaking Changes

  • PRINTBooks with full bleed will no longer have page counts altered by the additional 0.125" trim
  • PRINTBecause of a new body text font size conversion, the font size might need to be readjusted in some cases
Version v2.6.5
Jul 12, 2026

New Features

  • PRINTAdded customization for header and footer page layout elements, allowing you to control font weight and text transformations with greater granularity
  • PRINTImproved hyphenation dictionary for U.S. English
  • TEXT CONVERSATIONSAdded hotkeys to toggle names and left/right alignment
  • TEXT CONVERSATIONSAdded auto-parsing dialog so you can easily create new conversations using the "Name: Message" format
  • T.O.C.Added a 'Show in Table of Contents' option for book parts and book volumes
  • T.O.C.Book parts or volumes without any sections are now treated as if they had sections for page numbering behavior relative to the first chapter
  • ENDNOTESAdded an option to hide book parts from endnote section-type pages
  • EPUBImproved internal folder structure when creating box sets
  • EPUBAdded the ability to select any store when generating single EPUB files
  • ELEMENTSAdded new multi-column grid element
  • ELEMENTSAdded a new columns element (a precursor to the Indexer we're working on). Note: this feature is primarily for Print
  • The Kindle previewers no longer center title pages, book parts, and book volumes on screen to reflect the behavior of the real devices
  • Added the ability to place section header images to the left or right of section titles and subtitles. Kindle requires different coding than other stores, so please generate Kindle EPUB files when using this functionality on Amazon devices
  • Added first-line indent and left-indentation options for individual paragraphs to create hanging indents
  • Added section-wide element left-indentation overrides to create content offsets
  • Added 'Convert Straight Quotes to Smart Quotes' functionality. You can find it under the Edit menu
  • Added undo/redo/reset ability to the Indentation panel

Bug Fixes

  • DOCXFixed a DOCX import bug caused by older versions of Word
  • DOCXFixed bullet and ordered lists not being detected on import when Word styles are used
  • MACOSFixed a bug that prevented projects from saving in certain situations. Please ensure you grant proper permissions for folders when saving.
  • PRINTFixed a bug that caused the Disable All Indentation preview to not display correctly when other panels were open
  • LLAMAPRINTFixed a bug that caused table headers to disappear instead of flowing to the next page when the table didn't fit
  • Fixed a bug that kept EPUB generation locked as 'Generating...' when the file dialog was canceled
  • Fixed a section heading image panel bug that selected the wrong placement defaults, causing unexpected behavior
  • Fixed the File menu's Recent Projects bugs that caused the menu to disappear and projects to load incorrectly at times
Version v2.6.0
Jun 25, 2026

Thank you all for spreading the word about Lacuna and helping us grow. Every post, share, recommendation, and conversation makes a real difference for a small team like ours. We're especially proud of this release because it brings many of the finishing touches that your print books deserve. Don't worry, page borders are coming next, we promise! Thank you for being part of the journey and for all of your support.

New Features

  • PRINTSpread Balancing is now officially available in Beta. Find the options under Print Settings -> Spread Alignment.
  • PRINTAdded the ability to set different header & footer presets for the first page and the remaining pages.
  • PRINTCreated a new "Custom" trim size option to allow you to create any trim size between 3" and 12".
  • PRINTAdded a new 'Typography' panel to the section's Print Settings, allowing you to override the font, font size, font weight, and line spacing for individual sections.
  • PRINTCreated a new full-screen mode so you can see your full print book as a reader would (Open Book icon appears beneath the previewer when Print Previewer (Slower) is selected).
  • LINKSStore links are now available with one-click generation, letting you create individual EPUB files for Amazon, Apple, Kobo, Barnes & Noble, and Google Play.
  • IMAGESYou can now import SVG, TIFF, and BMP images.
  • Improved undo/redo capabilities for many features that previously lacked this behavior
  • Added more options to the 'Apply to Others' feature that previously lacked this behavior
  • Shifted the minimize inline settings panel to the right so you can still click the 'Add new Sections' button while the panels are open.
  • Made the tabs in the minimized inline settings panel clickable to improve usability.

Bug Fixes

  • DOCXAdded the ability to import and properly detect images with image captions
  • DOCXFixed various bugs that were preventing images from being imported correctly
  • DOCXStopped the engine from creating Endnote section types when you have sections called "Notes" and "Endnotes", so you can preserve your own endnotes
  • Undoing or removing a Book Volume now properly renames and reorders the numbered chapters that were inside it

Breaking Changes

  • PRINTHyphenations: Extracted the English dictionary into two types: US and GB. This now lets you pick the language that best suits your needs and will resolve many of the previous hyphenation breaks that weren't in coordination with Merriam-Webster (English U.S.).
Version v2.5.1
Jun 9, 2026

We're taking a break from feature requests for the next month or two. We've been able to add all the features other applications have while giving you far more customization than anything in this price range. We believe it's a good time to pause feature development (I also really need a break) and focus entirely on fixing bugs, finishing the print engine, and optimizing the application. The remaining features we're working on are store links, page spread balancing, and page borders. We're excited about page borders because we're going to be integrating PrintedEdges (Check them out if you haven't. They have an awesome product and are equally awesome people) templates directly into our app. Thank you for all the support you've given us!

New Features

  • STYLESImport brand colors from another Lacuna project
  • LLAMAPRINTImproved image processing speed when rendering PDFs
  • EPUBImproved image compression and font management to reduce the size of the final EPUB files. For older book projects, please visit the Image Gallery, click the three dots near the top right, and re-run Compress images

Bug Fixes

  • LLAMAPRINTFixed the title page designer from prepending an extra page at the beginning of the books
  • LLAMAPRINTFixed drop cap from floating above the content when changing the first line's font size
  • ELEMENTSImported block quotes, tables, lists, and callout boxes now show up in Search Elements right away, without needing to save the section first
  • ELEMENTSFixed ornamental breaks losing their color, alignment, and padding after editing an older preset's color
  • EPUBFixed large chapter heading images sized below 100%, filling the whole column on Kindle
  • EPUBFixed epubcheck errors from happening when you have unknown section types without any titles
Version v2.5.0
May 29, 2026

New Features

  • ENDNOTESEndnotes are now natively supported in Lacuna. Add them to your project via the editor's menu bar. Customize them in Edit Styles -> Endnotes Settings. Use the new Endnotes section type in Add New Sections -> Back Matter -> Endnotes, or automatically add them to the end of each section.
  • EPUBAdded a new device type selector when exporting Epub files that allows you to now generate Kobo-specific files that improve the reader's experience on Kobo devices.
  • COLORSControl the background and foreground of any text in the Editor by selecting the text and using the text bubble menu.
  • COLORSSection titles, subtitles, and subheadings each have color tabs in their respective panels.
  • PREVIEWEREdit Mode settings are now remembered across project sessions. For new projects, Edit Mode is disabled. We're investigating a bug and want to prevent new users from having a bad first experience while we fix it.
  • IMAGESImage captions are now fully customizable with presets
  • IMAGESAdded a new print-only feature to fit any image to the page it starts on, minimizing empty space when images can't fit normally.
  • DROP CAPSAdd as many drop caps as you want per section now by navigating to the paragraph you want to have a drop cap, opening its menu, and selecting "Force Drop Cap."
  • LLAMAPRINTImproved the runt elimination algorithm to optimize for minimal letter space shifting
  • DOCXAdded the ability to detect Quotes (as Blockquote elements) and page break before style settings.
  • STYLESBullet and ordered list presets can now have text styles enabled, allowing you to control the font, font size, and line height of the list items.
  • Added a new dialog that warns you if you open a project with fonts that are not currently on your computer

Bug Fixes

  • LLAMAPRINTFixed a bug that erroneously broke certain words unnecessarily
  • LLAMAPRINTFixed a bug that caused line overlaps when disabling hyphenation across pages
  • LLAMAPRINTFixed issues that caused runt elimination and floating images to misbehave when using footnotes
  • TITLE DESIGNERFixed a bug that caused the title page to not be centered on ePUB devices
  • IMAGESFixed a bug that caused the image captions to not properly align the text to the right
  • EBOOK PDFFixed table of contents not showing the hierarchical indentation properly
  • EBOOK PDFFixed behavioral issues with footnotes and fixed a bug that caused the footnote markers to be larger than expected

Breaking Changes

  • LLAMAPRINTFixed a bug that caused certain fonts to bleed into the margins and cause KDP errors when using large fonts. This may cause side effects in older book projects.
Version v2.4.5
May 17, 2026

New Features

  • PRINTAdded project-wide (Print Settings -> Page Colors) and section-wide (Option menu -> Set Section's Background -> Page Colors) background color and foreground color management
  • PRINTAdded hyphenation option to prevent words from being hyphenated across pages
  • PRINTAdded 4x6 trim size
  • PRINTNew feature to force chapter 1 to start on page 1 regardless of whether or not it's in a book part or a book volume (Print Settings -> Page Numbering)
  • Added the ability to merge blockquotes and handwriting blocks using backspace and delete when the cursor is at the first or last position, respectively
  • Improved copy and pasting image(s) from Google Docs/Microsoft Word

Bug Fixes

  • TOCFixed book part and book volume entities not staying with their children entities across pages to avoid orphans
  • TOCFixed page numbers not sticking with their book parts when the book parts are the last items on a page (won't happen anymore because of the previous fix, but fixed nonetheless)
  • FOOTNOTESFixed bug that caused footnotes with links to not load the dialog
  • Fixed preset importing bug that caused naming collisions and bad side effects
Version v2.4.0
May 12, 2026

New Features

  • Added heading background images functionality to eBook and Print. We added a 'Background' edit button when hovering over ereaders and created a new background section in the Options menu.
  • Improved the minimized settings panels user experience
  • Added the hotkey Ctrl/Cmd+Backspace to delete empty elements from the editor (Blockquotes, Handwriting, Callout Boxes, Device Specific Blocks)
  • Improved command palette's search results (Cmd/Ctrl+P)
  • Select all (Ctrl/Cmd+A) within callout boxes and device-specific blocks is now contained within the elements

Bug Fixes

  • STYLESFixed the ornamental break panel so it allows you to switch between modes
  • STYLESFixed inline style settings that were not working correctly when multiple tabs of the same element are open with different presets
  • LLAMAPRINTFixed a bug that caused the first paragraph not to be indented when set
  • LLAMAPRINTFixed an issue that caused certain elements not to apply the correct bottom spacing when the last paragraph grid snapping mode was enabled
  • Corrected missing grayscale elements when previewing e-ink readers
  • Corrected the updater window's size
  • Projects are no longer being mistaken as temporary files on Windows to fix errors when backing up project files on Proton Drive

Have feedback or feature requests?

We'd love to hear from you! Your feedback helps us improve Lacuna and build the features you need.

Contact Us