CotEditor

system requirements: macOS 14 and later

Improvements

• Automatically insert a closing symbol also for single and back quotation marks when the “Automatically insert closing brackets and quotes” option is enabled.
• Update the naming convention for duplicated files and folders in the file browser.
• Discontinue appending the “copy” suffix to user settings, such as syntax definitions, when duplicating them.
• Improve the syntax highlighting algorithm.
• Update the Markdown syntax to improve the highlighting of code blocks.
• Update the Go syntax to fix some highlighting keywords (thanks to Karam!).
• Improve the stability.
• [trivial] Improve the tooltip appearance when hovering over a truncated item in the file browser.
• [dev] Update the build environment to Xcod

system requirements: macOS 14 and later

Improvements

• Switch the localized block name and the block name defined in Unicode by clicking the block name in the character inspector.
• Revert the steppers to the font setting controls in the Appearance settings pane.
• Remove the Script menu from the context menu.
• Add a help tag for the “Show Sidebar” menu item when the command is unavailable.
• Update the CSS syntax to add new keywords (thanks to Karam!).
• Update the Swift syntax to support highlighting regex literals.
• Update the JSON syntax to include the .xcstrings file extension.

Fixes

• Fix an issue where multiple text insertion points persist as visible even when the document is made not editable.

system requirements: macOS 14 and later

Improvements

• Just move the insertion point instead of inserting a new one when typing a quotation mark just before a quotation mark automatically inserted by the “Automatically insert closing brackets and quotes” option.
• Update the Unicode block name list.

Fixes

• Fix an issue in the What’s New window where an unwanted beta label would appear even in stable versions.

Full Changelog: 5.1.0...5.1.1

system requirements: macOS 14 and later

New Features

• Append the nearest unique ancestor folder name to the document title if multiple documents with the same name are opened.
• The new “prevent editing” command that prevents documents from being unintentionally edited.
• Introduce the new AppleScript parameter editable to document objects.
• Introduce the --readonly (-r) option to the cot command-line tool to open documents as read-only.
• Read input from the standard input when the cot command-line tool is used with the - option.
• Display Finder tags in the document inspector and the file browser.
• Add the “text replacement” option to the Mode settings to disable the future in the editor.
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system requirements: macOS 14 and later

New Features

• Add the PowerShell syntax.

Improvements

• Update the PHP syntax.
• Declare CotEditor can handle folders.
• [dev] Update Yams from 5.3.0 to 5.3.1.
• [non-AppStore ver.] Update Sparkle from 2.6.4 to 2.7.0.

Fixes

• Fix an issue in the AppleScript support where the print command is ignored.
• Fix an issue where the Settings window is not accessible from the Window menu.
• Fix an issue on macOS 15 where newly created documents are mispositioned when the frontmost document is tiled.

Full Changelog

system requirements: macOS 14 and later

New Features

• Add the “text replacement” option to the Mode settings to disable the future in the editor.

Improvements

• Show an alert and abort the import of setting files if they are not in a valid format.
• Update the JSON syntax to include the .jsonl file extension.
• Improve the stability.
• [experimental] Improve the syntax highlighting algorithm for inline comments.
• [dev] Update Yams from 5.1.3 to 5.3.0.
• [beta.2] Update the Dutch localizations for strings added in CotEditor 5.1.0.

Fixes

• Fix an issue in the Appearance settings pane

system requirements: macOS 14 and later

New Features

• Display Finder tags in the document inspector and the file browser.

Improvements

• [beta] Update the Korean and Polish localizations for strings newly added in CotEditor 5.1.0.

Known Issue

• The texts added in CotEditor 5.1.0 are not localized yet in Dutch.

Full Changelog: 5.1.0-beta...5.1.0-beta.2

system requirements: macOS 14 and later

New Features

• Append the nearest unique ancestor folder name to the document title if multiple documents with the same name are opened.
• The new “prevent editing” command that prevents documents from being unintentionally edited.
• Introduce the new AppleScript parameter editable to document objects.
• Introduce the --readonly (-r) option to the cot command-line tool to open documents as read-only.
• Read input from the standard input when the cot command-line tool is used with the - option.

Improvements

• Improve th

system requirements: macOS 14 and later

Improvements

• Add missing localization of Unicode block names.

Fixes

• Fix an issue where the text fields in the syntax editor could restore the contents after the input under certain conditions.
• Fix a potential crash that rarely occurs when interacting with the Quick Action bar.

Full Changelog: 5.0.7...5.0.8

system requirements: macOS 14 and later

New Features

• Add title and timestamp options to the AppleScript’s write to console command.

Improvements

• Provide more Unicode information about the selected character in the document inspector.
• Prevent the console from hiding when the app goes into the background.
• Optimize the file browser’s performance when expanding a folder containing a large number of items.
• Improve the trimming of whitespaces in the extracted outline labels.
• Modify the syntax highlighting rule to extract strings in the form of “begin-end” string pairs, even if one of those is escaped.
• Adjust the editor’s initial scroll position.
• [trivial] Update the layout of the Donatio

system requirements: macOS 14 and later

New Features

• Display information about the selected image in the preview view for the file browser.
• Add the “Add period with double-space” option to the Mode setting options (deselected by default).
• Add the toolbar item for Writing Tools to the toolbar customization options (only for macOS 15.2 and later and when the Writing Tools feature is available).

Improvements

• Allow insertion points only at the same number of wrapped lines by rectangular selection.
• Allow selections only at the same number of wrapped lines by selecting the column up/down.
• Update the document’s syntax based on the filename when renaming it in the file browser.
• Always open a file as a plain-text document if its file ext