Release Notes
All updates and fixes for Mac, Windows, and iOS
Aeon Timeline 3.5.40
February 20, 2026
Aeon Timeline 3.5.40 has been released with the following fix:
- Fixed a bug where the item type sidebar panels could appear blank, even when there were items of that type.
Aeon Timeline 3.5.39
February 4, 2026
Aeon Timeline 3.5.39 has been released with the following updates:
- Filtering with "match none" setting will omit chosen filter items (previously it only filtered related items)
- Fixed an issue that created duplicate table columns in Spreadsheet View
- Fixed potential error message shown in inspector for some older user files
Aeon Timeline 3.5.38
January 28, 2026
Aeon Timeline 3.5.38 has been released with the following updates:
- Fixed an issue where showing collapsed groups in the Timeline view with many collapsed events or items could cause high memory usage.
- Fixed an issue where attachments wouldn't open when clicked on from within the main view.
- Fixed an issue where closing adding and closing split views could leave a tab named after the wrong view type.
- Updated the message shown when the Timeline view is empty to say if it’s due to showing a group or date range that has no events or items.
- Minor copy edits in the sync settings panel to use the correct terminology for Ulysses syncing.
Aeon Timeline 3.5.36
January 16, 2026
Aeon Timeline 3.5.36 has been released with the following fixes:
- Fixed an issue where right-click context menus would not update if Mindmap tabs were renamed or deleted.
- Fixed an issue where new Mindmap views not created correctly when splitting the view.
- Fixed an issue where the calendar picker would convert durations like "6 weeks" to "1 month, 1 week, 4 days".
- Fixed an issue where the custom color menu was not available.
Aeon Timeline 3.4.23
May 16, 2025
Aeon Timeline version 3.4.23 has been released with the following fixes:
- Redirect Buy button to website in Windows app (due to recent change from our payment provider)
- Fixed issue where deleting data from a timeline file would not reduce the file size
- Fixed issue where timeline files with attachments may be interpreted or displayed as an image by some 3rd party applications
Aeon Timeline 3.4.20
February 25, 2025
Aeon Timeline version 3.4.20 has been released with the following fixes:
- Fixed a bug where dragged items would not drop properly if released in their original position.
- Fixed a bug where Mindmap labels were included in printing and image export despite being disabled in the view.
- Fixed a bug where deleting items did not delete their attachments from the file.
- Fixed a bug where uncertain start dates could not be set correctly for ongoing events.
- Fixed a bug where dated items not shown on the timeline (such as characters) could not be added to date constraints.
- Fixed an issue with some templates where the override today date was inadvertently set.
- Added a limit of 150 tracks in Subway View to prevent app freezing.
- Windows only: Fixed a bug where files would not save after importing CSVs containing certain special characters, such as emojis.
Aeon Timeline 3.4.18
November 11, 2024
Aeon Timeline version 3.4.18 has been released with the following fixes:
- Fixed a rare crash on Mac + other minor bug fixes
Aeon Timeline 3.4.17
October 29, 2024
Aeon Timeline version 3.4.17 has been released with the following fixes:
- Fixed a bug where attachments wouldn't open when shown on the timeline or in other views, and would only open from the inspector.
- Fixed a bug where inverse relationships wouldn't show as selected in mindmap view dropdowns.
Aeon Timeline 3.4.16
October 2, 2024
Aeon Timeline version 3.4.16 has been released with the following fixes:
- Fixed an issue when purchasing updates through the app using third party payment platforms such as PayPal
- View settings such as Subway threads, Relationship View columns and timeline display options can now be saved as soon as the change is made (they were previously only saved after a subsequent timeline edit)
- Fixed bug in position of horizontal drop line indicating where an item will be moved to when dragging between groups in the timeline
- Fixed bug where incorrect relationship options could be shown in the edit menus for inverse relationships
Aeon Timeline 3.4.14
September 18, 2024
Aeon Timeline version 3.4.14 has been released with the following fixes:
- Fixed a Windows bug where File > New and File > Open may open files within an existing window instead of a new window
- Fixed issue where purchasing via PayPal, Amazon and Google Pay could hang indefinitely on Windows
- Fixed bug where timeline might crash when editing dates using the new edit menu
- Minor updates to starting template files
