Version 26.1

May 6, 2026

New General Features

• When a file is modified externally, a delay of several milliseconds is now inserted before reloading, and the message box shown when reloading fails now allows selecting the Retry button. ^[PF]

• The new versions remembers an the "Apply to All" option when multiple unsaved documents are being saved. ^[PF]

• Improved the performance of various operations, including Sort, Remove Newlines, and Insert Newlines, as well as Horizontal Scrolling in large files with no newline characters (single-line files).

Test results:

	v26.0	v26.1	Comparison
1. Sort	1.317 seconds	0.745 seconds	1.77 times faster
2. Remove Newlines	7.70 seconds	1.27 seconds	6.06 times faster
3. Insert Newlines	21.5 seconds	16.0 seconds	1.34 times faster
4. Horizontal Scrolling	106.4 seconds	38.9 seconds	2.74 times faster

• 1: Sort A to Z (all default options) [*a]

• 2: Replace all \n with a while Escape Sequence option enabled, 20,685,609 newlines replaced [*a]

• 3: Replace all a with \n while Escape Sequence option enabled, 96,626,226 characters replaced [*b]

• 4: Run the following macro to move the cursor to the end of the line, then move it 1,000 characters to the left. [*b]

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

• *a: A Wikipedia dump file (UTF-8, 2.00 GB, 20,685,610 lines)

• *b: A Wikipedia dump file (UTF-8, 1.98 GB, 1 line)

• *All: All default options except Always discard lengthy undo information to improve performance option enabled, Windows 11, Ryzen 9 7950X, 96 GB RAM.

New Options

• Added a The cursor moves to the correct position when sorting checkbox to the Sort page of the Customize dialog box. ^[P]

• Added Provider, Model, Reasoning effort, and Text Verbosity checkboxes and drop-down list boxes, as well as a Web Search checkbox, to the AI Prompts page in the Customize dialog box. ^[P]

• Added Provider, Model, Reasoning effort, and Text Verbosity checkboxes and drop-down list boxes, as well as a Web Search checkbox, to the New Prompt dialog box. ^[P]

• The Preferred model drop-down list box on the AI Options page of the Customize dialog box is now populated dynamically. ^[P]

New Macro Features ^[P]

• Added the TextLength property to the Selection object.

• Added the LineNumbersZeroBase property to the GeneralProp object.

Plug-in New Features ^[P]

• Added the EE_GET_SEL_LENGTH message and the Editor_GetSelLength inline function.

• Chat with AI

  • Added the Anthropic provider.

  • Support file upload feature for Google provider.

  • Support tool calling for Anthropic and Google providers.

  • Added the Import and Export Chat feature.

  • Added the PowerShell tool.

Notes

• [P] EmEditor Professional only

• [PF] EmEditor Professional and EmEditor Free