• Updated the PubMed Central search to deal with changes made by PMC.

• Improved handling of Google Scholar CAPTCHA challenges. • Fixed a bug where no references were returned from Google Scholar searches.

• Attach File option available via the Edit Reference menu button. • Attachment thumbnails display more file types supported by iOS. • Attachments can be renamed on import according to options set in Settings. • Reference and Smart Groups UIs have been modernized.

• Fixed a crash that occurred during cloud sync attachment downloads.

• Integrates with Mellel Mobile. • Search for references and insert citations with a tap or drag and drop (split screen), without leaving Mellel. • Create publication-ready manuscripts with properly constructed citations, footnotes, and bibliographies. • Find and install CSL styles for thousands of different publications from within Bookends. • Fixed a text display issue when editing a reference. • Fixed a bug that prevented smart groups from searching for references where a field is empty.

• Barcode Scan improvements. Fetched metadata and book covers, if available, will be retrieved from two sources: Google Books and Open Library. If the book is already in your library, the metadata will be highlighted in yellow and tapping on it will show to the existing reference in the library. • Sort references by Citekey.

• Selecting an export reference style is now menu-based, so you no longer need to change it in Settings first. • Bookends uses a built-in format for exporting to BibTeX. If you need your own version, please obtain and install a BibTeX CSL style. • Fixed a problem where book cover art was not attached to a reference imported via Quick Add. • Fixed a crash that could occur the first time a local library was synced with an existing cloud library. • Fixed a bug when using a CSL style where only the first initial was output when the authors name contained two or more initials in a row.

• Modernized app appearance and menus. • Search All now searches the text in all fields, not just the few shown under the search bar. • Internal Web Viewer uses iOS native downloader for PDFs, so more PDFs should be automatically downloaded. • Autofill from internet for the reference now has an option to manually enter DOI or other identifiers for metadata fetching. • Use journal glossaries when creating a formatted reference. Enable in the Scan & Bib section of Settings. • If a journal glossary is enabled and abbreviations defined in Bookends, an abbreviation entered in the journal field will be expanded to the journal's name. • The demo version will no longer show ads.

• Fixed a problem that prevents Wi-Fi sync in upcoming versions of iOS. • If you like Bookends, please take the time to give us a nice review: it really helps.

• "Copy Link" is now available for references, groups, PDFs, PDF Notecards, and PDF selected text. The link is in a Markdown link format, and can be pasted into other apps in iOS. When it is tapped in another app, Bookends will open and show the corresponding linked item. • If you like Bookends, please take the time to give us a nice review: it really helps.

• PDF thumbnail bar restored. • Library default attachment subfolder can be set in Settings for Wi-Fi synced libraries. • Fixed a problem where old versions of renamed attachments were not deleted after Wi-Fi sync. • If you like Bookends, please take the time to give us a nice review: it really helps.

• Citekey options can be configured in Settings. Bookends can generate citekeys when importing references. In addition, citekeys can be generated in the following styles: Author + Year, Author + Year + UniqueID, Author + Year + Partial Title (first 5 meaningful characters), and Author + Year + Library Name. • Updated PDF component with the focus on compatibility with iOS 16 and modern menu system for annotation creation and annotation selection menus. • Updated Color labels menu for groups and references. • Updated Group Management view for both single and multiple references selection. • If you like Bookends, please take the time to give us a nice review: it really helps.

• Added the ability of Bookends to extract and export PDF annotations (Pro feature only). • Redesigned how new libraries are added: via the “+” menu or switching between them via the library options menu (“...“). In addition, it is now possible to rename or delete the current library right from the main screen via the “...” menu. • Improved and rewritten from the ground up all places for adding reference: Quick Add, autofilling from the internet, and adding and autofilling from a barcode scan. • Disabled the behaviour of the PDF engine that merged adjacent highlights of the same color, which then couldn't be dealt with individually later. • CSL options can be configured in Settings. • Fixed a problem that prevented Library of Congress searches from working. • If you like Bookends, please take the time to give us a nice review: it really helps.

• Fixed a bug that caused the pinned attachments view to show only the last-opened PDF. • Bookends Wi-Fi sync improvements. • Note: this is the last update with support of iOS 13 and iOS 14. All devices that support iOS 13 also support iOS 15. Please update to the latest iOS version to get further updates of Bookends for iOS. • If you like Bookends, please take the time to give us a nice review: it really helps.

• Convenient UI for adding PDF Notes and notecards (Pro feature only). • Semantic Scholar search engine. • If you like Bookends, please take the time to give us a nice review: it really helps.

• Help with Purchases updated to cover failed in-app purchase restoration. • If you like Bookends, please take the time to give us a nice review: it really helps.

• Improved main library view with new icons (iOS 15+). • Improved in-app purchases view (iOS 15+). • Color labels for groups and folders. • Type pop-up menus no longer display Unused Types. • If you like Bookends, please take the time to give us a nice review: it really helps.

#StandWithUkraine • When fetching Google Books cover art, Bookends will change the URL provided by Google to use “https”, so book covers will be downloaded again automatically. • The last-viewed state of unpinned PDFs will be remembered. • Restored support for iOS 13 and 14. • If you like Bookends, please take the time to give us a nice review: it really helps.

• This release requires iOS 15 or later because of unexpected problems on older iOS versions (temporarily).

• Shared cloud sync of references and attachments between users (requires iOS 15+ and macOS 11+). • Library default attachment subfolder can be set in Settings (for use with shared cloud sync). • The pinned attachments view can be called from the main library screen. • When the iOS native PDF engine is used (when PDF Annotations mode is turned off in Settings), annotations will be stored in the file. Previously this option wasn't available. • Fixed a rare cloud sync problem when Bookends proposed a full library re-sync. • If you like Bookends, please take the time to give us a nice review: It really helps.

• Updated PDF component with the focus on compatibility with iOS 15, like drag and drop of text and images out of documents into other apps. • Fixed as crash on app launch that occurred with some libraries. • Dropped iOS 12 support. • If you like Bookends, please take the time to give us a nice review: It really helps.

• References can be added to Quick Note on iPad Running iPadOS 15. • Resolve Google Scholar CAPTCHA challenges and immediately resume searching. • Fixed a problem with crash on importing references from Google Scholar. • If you like Bookends, please take the time to give us a nice review: It really helps.

• iOS 15 support. • To maintain a tab in the PDF viewer between launches you must pin it. • If you like Bookends, please take the time to give us a nice review: It really helps.

• Fixed a crash on batch deletion of references. • Improved Open In functionality for incoming files from other apps. • If you like Bookends, please take the time to give us a nice review: It really helps.

• New tab based PDF viewer interface. • Citations pasted or dropped from Bookends to Mellel are inserted as Mellel citation objects. • Fixed a bug in Siri Shortcuts Get References command when the references were requested from a specific folder. • If you like Bookends, please take the time to give us a nice review: It really helps.