This version addresses a rendering issue in the reader view and introduces some usability improvements.

Fixes
• [Reader View] Mitigated small gaps that might be shown at the edge of the pages when magnifying content with small logical sizes

Improvements
• [Library] Selections for books are preserved after making editing actions for selected books, so that another editing action can be made successively
• Other miscellaneous user experience improvements

Others
• As previously announced, the in-app "User Authentication" feature has been removed. Please use the operating system's built-in “Lock or Hide Apps” feature instead of Booklover’s user authentication.
• Starting with new installations of this version (3.7.0), “Give My Regards to Black Jack” is no longer provided within the Booklover app. For users updating from versions prior to 3.7.0, availability will also be discontinued in the next release. Please download it from the official website of the author Shuho Sato at https://densho810.com/free/ .

Starting with this version, genre sections in the Library can now be collapsed and expanded. Usability across the Library has also been improved.

New Features
• [Library] Tap the chevron in a genre header to collapse or expand that genre section
• [Library] Long-press the chevron in a genre header to collapse or expand all genre sections
• [Library] Select or deselect books in each genre from the menu on the genre section header
• [Library Settings] Change genre section header size (S / M / L)

Improvements
• Improved usability across the Library
• Improved Library stability and performance

Others
• As previously announced, the in-app "User Authentication" feature has been removed. Please use the operating system's built-in “Lock or Hide Apps” feature instead of Booklover’s user authentication.
• Starting with new installations of this version (3.7.0), “Give My Regards to Black Jack” is no longer provided within the Booklover app. For users updating from versions prior to 3.7.0, availability will also be discontinued in the next release. Please download it from the official website of the author Shuho Sato at https://densho810.com/free/ .

This is a quick update to fix an issue with the setting that prevents the Next/Previous Book Navigation from appearing in the Reader View, introduced in the previous version.

Fixes
• Fixed an issue where the Next/Previous Book Navigation could still appear when tapping the screen edges at the beginning or end of a book, even when the “Show Next/Previous Book Navigation” setting was turned off

Other
• As announced over the past year, the User Authentication feature will no longer be available starting with the next version. Please use the OS’s built-in “Lock or Hide an App” functionality instead of Booklover’s authentication feature going forward.

From this version, you can move to the next or previous book with a three-finger swipe in the Reader View. This update also brings new settings and UI improvements.

New Features
• [Reader View] Move to the next/previous book with a three-finger swipe gesture (the direction follows the current book’s Progress Direction setting)
• [Reader View] Move to the next/previous book using the hardware keyboard shortcut Command + ← / → (the direction follows the current book’s Progress Direction setting)
• [Reader View] On iPad or iPhone in landscape mode, when there’s enough horizontal space, next/previous book buttons now appear on both sides of the bottom slider (the direction follows the current book’s Progress Direction setting)
• [Reader Settings] Added an option for the three-finger swipe gesture (“Move to Next/Previous Book” or “Do Nothing”)
• [Reader Settings] Added an option to hide the Next/Previous Book Navigation that appears when swiping at the beginning or end of a book
• [Library Settings] You can now individually toggle the visibility of each cover accessory in Grid View (Reading Status / Last Opened / Favorite / Tags / Bookmarks)

Improvements
• [Library] Added Tags as a new cover accessory (displayed for tagged books)
• Improved overall performance and stability

Changes
• When a book’s Background Color is not set to Dynamic, a dynamic background color is still shown during Cover Art Preview

Other
• As announced over the past year, the User Authentication feature will no longer be available starting with the next version. Please use the OS’s built-in “Lock or Hide an App” functionality instead of Booklover’s authentication feature going forward.

- Bug fixes
- Updated UI

This update mainly fixes issues on iOS/iPadOS 26.

Fixes
• [Reader View] Fixed an issue on iOS 26 where the buttons for adding or editing a title or note on a bookmark did not respond to taps
• Fixed an issue where a file downloaded via Safari → Share → Booklover may not be imported under certain conditions or environments

Changes
• When a hardware keyboard is connected, the keyboard shortcut to show the Page Thumbnails View in Reader View has been changed from 'T' to Command-T

Others
• This is planned to be the last version that supports iOS(iPadOS) 17.
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This update includes minor adjustments for iOS(iPadOS) 26. It also fixes an issue on iOS 17 where the import icon was not being displayed. We apologize for the inconvenience.

Improvements
• Minor adjustments for iOS 26

Fixes
• Fixed an issue on iOS 17 where the “Import” icon at the bottom of the Library was not displayed

Others
• This is planned to be the last version that supports iOS(iPadOS) 17.
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

You can now sort books in the Library Navigator by File Size and Date Modified. This update also includes various minor improvements and bug fixes.

Improvements
• Added “File Size” and “Date Modified to the sorting options in the Library Navigator
• You can now copy the filename by long-pressing the filename field in the Book Info view.
• Other miscellaneous improvements

Fixes
• Fixed an issue where, on iPhone, when “Force Vertical Scroll in Landscape” was enabled in the Reading Settings, wide page images could still be split during landscape reading
• Fixed an issue where books appeared at the top of the “Added” history when their files were moved without modification
• Miscellaneous bug fixes

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This update includes several subtle but important improvements.

Improvements
• Redesigned the "How to Add Books" view
• Improved the logic that detects added, deleted, or moved files in the Files app under “On My iPhone (iPad)” → “Booklover”, and updates the library accordingly
• Various other improvements throughout the app

Fixes
• Fixed an issue where moving files between “In This App” and “iCloud Drive/Booklover” could result in an error if the source's parent folder didn’t exist at the destination. (The app now lets you choose whether to create the parent folder or move the file to the top level instead.)
• Miscellaneous bug fixes

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This update includes improvements to the history list, as well as fixes for a few issues.

Improvements
• You can now select multiple items in the history list and remove them from history at once.

Fixes
• Fixed an issue where some cells could appear with a broken layout when toggling selection mode in the library list view
• Fixed an issue where the reading status might not change to "Read" even after reaching the last page under certain conditions
• Miscellaneous bug fixes

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This update includes a few bug fixes.

Fixes
• Fixed an issue where rotated PDFs could appear flipped under certain conditions when rendered as images
• Miscellaneous bug fixes

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This update includes minor improvements and bug fixes.

Fixes
• Fixed an issue where the crop area might not reflect correctly when trimming a rotated PDF page rendered as an image.
• Fixed a crash that could occur on first launch after updating from version 3.3.6 or earlier under certain conditions.

Improvements
• Minor improvements to the File Info view

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This patch fixes an issue where the “Booklover” folder wouldn’t appear in the Files app (On My iPhone/iPad) until files were imported into the app.

Fixes
• Fixed an issue where the “Booklover” folder did not appear in the Files app (On My iPhone/iPad) until files had been imported.

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

Added options to extract tags from Other Metadata during filename-based metadata extraction. Books stored In This App can now be viewed and managed in the system Files app.

New Features
• Added options to extract tags from Other Metadata (General Settings → Extraction from Filename. Visible only when Extract Other Metadata is enabled. Default is OFF.)

Improvements
• Books stored In This App are now accessible via the Files app (On My iPhone/iPad -> Booklover)
• Multiple files can now be imported into Booklover at once via the system Share menu
• Performance improvements

Revisions
• Removed the Show Unsupported Files option. Unsupported files are now ignored in the Library but can now be accessed via the Files app.

Fixes
• Miscellaneous bug fixes

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This update focuses on improving page zoom behavior in continuous scrolling mode.

New Features
• Added a "Prevent Screen Dimming When Inactive" setting (General Settings -> Other). Default: OFF

Improvements
• Improved page zoom behavior in continuous scrolling mode

Fixes
• Miscellaneous bug fixes

Revisions
• The warning about potential corruption of OCR text embedded in PDFs by Adobe Acrobat when saving changes is now also displayed in the annotation list in the reader view. (can be dismissed with the X button)

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This version addresses a few issues, particularly an unexpected performance overload during launch under certain conditions.

Fixes
• Improved a performance overload issue that occurred during launch under certain conditions
• Fixed an issue where the screen occasionally flickered for a fraction of a second when using “Crossfade” or “Instant” page transitions
• Fixed a rare crash that could occur with certain gesture combinations when using non-scrolling page transitions

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This version focuses on improving performance and stability.

Improvements
• Several improvements related to file operations
• Improved stability
• Improved performance
• Miscellaneous user interface improvements

Fixes
• Miscellaneous bug fixes

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This version brings subtle usability improvements, stability enhancements, and bug fixes.

Improvements
• Usability enhancements in the Page Thumbnail View
• Improved app stability

Fixes
• Resolved an issue where the menu for selected PDF text might not appear after switching to another book in Reader View under certain conditions
• Miscellaneous bug fixes

Revisions
• Updated the heads-up message about potential corruption of OCR text embedded in PDFs when saving. This message, displayed when selecting PDF text, will reappear even if you previously selected “Don’t Show Again” due to updated information.

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This version includes countermeasures for a few recently reported issues, along with minor fixes and improvements.

Improvements
• Added “Copy” and “Delete” buttons to the note editing popover for annotations
• Added a “Copy” option to the edit menu that appears when tapping an annotation

Fixes
• Miscellaneous bug fixes

Revisions
• Unsupported files can now be selected during file imports to work around an issue preventing CBZ files on Google Drive from being selected. Unsupported files will still be ignored and will not be imported.
• Added a heads-up dialog about handling certain PDFs with embedded OCR text.

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This is a large update introducing powerful Bookmark and PDF Annotation lists in the reader view. You can now add notes to PDF annotations (highlights) and both titles and notes to bookmarks.

New Features
• Bookmark list (Via the Content Guides icon at the top-left corner of the reader view)
• Title and note editing for bookmarks
• Show/Hide bookmarks on pages (In Reader Settings)
• PDF Annotation (Highlight) list (Via the Content Guides icon at the top-left corner of the reader view)
• Filter PDF annotations by type and highlight color
• Note editing for PDF annotations
• Swipe actions for cells in Bookmark and PDF Annotation lists
• Hierarchical display of image resources in the Table of Contents for ZIP/RAR files
• Delete ghost book data (In Maintenance Mode)

Improvements
• Numerous minor adjustments and improvements

Fixes
• Miscellaneous bug fixes

Revisions
• Changed the label in the text context menu of the PDF reader from “Highlight” to “Annotate”.
• You can now annotate (highlight) the same part of the text over existing annotations (highlights).
• When multiple annotations exist on the same text, tapping the annotated text will select the topmost (most recent) annotation.

Others
• Due to a compatibility issue, some PDF annotations (highlights) created in earlier versions of Booklover may have their annotated text itself entered as a note. If this occurs, please delete them as needed.
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.

This update includes bug fixes as well as minor adjustments and improvements.

Improvements
• Added buttons to copy the metadata of a PDF file to the clipboard in the Advanced (PDF) segment of the File Info view
• Other minor adjustments and improvements

Fixes
• Fixed display issues in the Advanced (PDF) segment of the File Info view
• Other miscellaneous bug fixes

Others
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.
• This is the last version that will support iOS/iPadOS 16.

Optimizations for iOS 18 have been made in this version. Additionally, a new segment has been added to the "File Info" view, where you can see detailed information about a PDF file.

New Features
• Added a segment to the "File Info" view to display detailed information about a PDF file.

Improvements
• Optimizations for iOS 18
• Other minor adjustments and improvements

Fixes
• Fixed an issue where importing a file would fail to complete if a file with the same name already existed.
• Other miscellaneous bug fixes

Others
• From iOS 18 onward, please use the OS's built-in "Lock/Hide App" feature instead of the "User Authentication" in Booklover.
• This is planned to be the last version supporting iOS/iPadOS 16.

In this version, we've added a new option to automatically set the default Progress Direction (Left-to-Right or Right-to-Left) of PDF books based on the corresponding attribute in PDF documents (only if available). Additionally, a few important issues have been addressed.

Improvements
• Added a new option to automatically set the default Progress Direction of PDF books based on the corresponding attribute in PDF documents (only if available). This can be found under "General Settings" -> "Default Settings for Books" -> "Progress Direction" -> "Respect PDF attribute (if set)". The default setting is ON.
• Performance and stability improvements

Fixes
• Fixed an issue where the screen mirrored to an external display would become unresponsive
• Fixed a crash that occurred during data migration from versions prior to 3.1.0, which caused the app to fail to start
• Other miscellaneous bug fixes

This update includes bug fixes as well as several minor adjustments and improvements.

Improvements
• Improved the content color detection logic for Dynamic Backgrounds
• Other minor adjustments and improvements

Fixes
• Fixed an issue where sorting genres or tags in Unicode order was not functioning
• Fixed an issue where the navigation bar display was not updating when the book title or author was changed in the "Book Info" within the reader view
• Other miscellaneous bug fixes

This update mainly focuses on bug fixes. Additionally, we've improved the dynamic background color transitions during page scrolling to be less distracting.

Improvements
• Adjusted the dynamic background color transitions (when the "Background Color" setting for a book is set to "Dynamic")
• Other minor adjustments and improvements

Fixes
• Fixed an issue where the screen could turn black and become unresponsive under certain conditions during page transitions when the "Page Transition" setting is set to "Stack," "Crossfade," or "Zoomfade"
• Fixed an issue where unintended background colors would appear during page transitions when going back to the previous page with the "Page Transition" setting set to "Stack"
• Fixed an issue where the app could crash under certain conditions when attempting to show the "Next Book" or "Previous Book" button
• Fixed an issue where the "Show Ghost Books" setting in "Library Settings" was not reflected after moving to another library view from the side menu

This version mainly includes fixes and improvements related to the PDF text highlighting introduced in version 3.3.0.

Improvements
• Added 'underline' and 'strikethrough' options to PDF text highlighting (annotations)
• Other subtle usability improvements related to PDF text highlighting

Fixes
• Fixed an issue where adding a new highlight near an existing one could cause the existing highlight to disappear
• Fixed other issues related to PDF text highlighting
• Fixed an issue where the display mode (grid/list view) of the library was not preserved when the app was manually closed