coteditor/CotEditor 7.1.0-beta on GitHub

system requirements: macOS 26 and later

Support macOS 27 Golden Gate.
Add folder search to the sidebar for searching for text across files in an open folder.
Add document history navigation to the toolbar for folder documents.
Automatically generate and apply a draft document name from the document’s content on macOS 27.
Allow the indentation style (spaces or tabs) and width to be set for each Mode.
Add the Customize Syntax Menu command to the More menu in the “Available syntaxes” section of the Format settings pane, allowing specific syntaxes to be hidden from syntax menus.
Add the “Status bar” option to the Appearance settings pane.

Make some settings dialogs resizable.
Allow custom syntaxes to be deleted by dragging them to the Trash.
Allow CotEditor Syntax files and multiple replacement definitions to be imported by dropping them onto their respective lists.
Add a context menu to the list in the Mode settings pane.
Display the number of definition errors as a badge in the sidebar of the syntax editor.
Automatically apply the JSON syntax to documents whose file type is a kind of JSON, such as GeoJSON files.
Update the JSON syntax to simplify the file mapping settings.
Improve overall stability and performance.
[dev] Tweak the accent color.
[dev] Update the build environment to Xcode 27 Beta 4 (Swift 6.4, macOS 27 SDK).

The status bar text can appear with an unreadable color with certain combinations of the system appearance, window appearance, and theme on macOS 26 (FB23611796).
In some cases, a sandboxed URL is passed when folder search results are dropped onto another app (FB23578716).
Strings added in this release are not yet localized in Bulgarian, Czech, and Polish.

Changes in 7.0.8 (unreleased)

Prevent the file browser from opening UNIX executable files as plain text.
Display more accurate error messages in dialogs.
Updated the SON syntax to change the file mapping for Package.resolved from file extensions to filenames.
Improve cancellation handling for syntax highlighting with computationally intensive regular expressions.
Improve overall stability.
[non-AppStore ver.] Update Sparkle from 2.9.3 to 2.9.4.

Fix an issue where the application could crash or freeze when undoing an edit that shortened the document, such as the trimming of trailing whitespace.
Fix an issue where the tab width customized for a document was not applied when printing.
Fix an issue where the insertion point could move to an incorrect column when extending a selection upward from the end of the document.
Fix an issue where the Surround Selection With > Custom dialog did not show the last used strings.
Fix an issue where the window size setting was not included in the exported settings archive (Thanks to offyotto!).

Full Changelog: 7.0.7...7.1.0-beta