Version 26.2

June 29, 2026

General New Features

  • The AI-Assisted Writing feature now supports more AI providers. In addition to the existing OpenAI support, you can now use Anthropic, DeepSeek, Google, and LM Studio / OpenAI-compatible providers. This feature requires the ChatAI plug-in. [P]

  • AI Prompts can now use a second provider or model, allowing you to send the same prompt to two AIs at once and compare both responses side by side in a split view. This feature requires the ChatAI plug-in. [P]

  • The Store version now uses the modern MSIX packaging technology, allowing it to work more like the desktop installer version (MSI). As a result, many features that were previously unavailable in the Store version are now supported, including: [PF]

    • Saving files in protected folders with elevated privileges [PF]

    • Explorer context menu integration [PF]

    • Plug-ins that are not included in the app package [P]

    • Opening Command Prompt or PowerShell [PF]

    Note: This refers to the Store version, which is delivered through the Microsoft Store using MSIX. It should not be confused with the standalone MSIX direct download, which will be released separately.

  • The Store version now includes the ChatAI plug-in. As before, ChatAI is not included in the desktop installer version (MSI) or the portable version. [PF]

  • Improved performance—including horizontal scrolling—when working with large files that contain no newline characters (single-line files). [PF]

Test results:

v26.0

v26.1

v26.2

Comparison to v26.0

* Horizontal Scrolling

106.4 seconds

38.9 seconds

7.59 seconds

14.0 times faster

  • * Run the following macro to move the cursor to the end of the line, then move it 1,000 characters to the left. A Wikipedia dump file (UTF-8, 1.98 GB, 1 line). All default options except Always discard lengthy undo information to improve performance option enabled, Windows 11, Ryzen 9 7950X, 96 GB RAM.

    document.selection.EndOfLine(false,eeLineView);
    document.selection.CharLeft(false, 1000);

New Options

  • Added a Provider drop-down list box to the AI Options page of the Customize dialog box. [P]

  • Removed the Use 'OPENAI_API_KEY' environment variable checkbox and OpenAI API key text box from the AI Options page of the Customize dialog box. [P]

  • Added the Set Second Provider/Model checkbox, the Provider 2 checkbox and drop-down list box, and the Model 2 checkbox and drop-down list box to the AI Prompts page of the Customize dialog box. [P]

  • Removed the HD and Vivid checkboxes from the AI Prompts page of the Customize dialog box. [P]

  • Added the Show suggestions only with Ctrl+Space, Show suggestions only when confident, and Set the temperature checkboxes, Don't show suggestions after any of the following checkbox and text box, the Delay time slider, and Additional instructions text box to the AI Assist page of configuration properties. [P]

  • Added a Show language/icon options checkbox to the Customize Start Window dialog box. [PF]

  • Added the Show additional information on status bar checkbox to the AI Options page of the Customize dialog box. [P]

  • Remove the Add EmEditor to HTML editor list on web browsers checkbox from the Shortcut page of the Customize dialog box. [P]

New Macro Features [P]

  • The Run macros asynchronously by default option on the Options page of the Customize Macros dialog box is now turned off by default.

  • The syntax checker is now disabled while a macro is running.

Plug-in New Features [P]

Notes

  • [P] EmEditor Professional only

  • [PF] EmEditor Professional and EmEditor Free