History — Version 25.3

# Version 25.3

August 20th, 2025

## New General Features

- Added the Sort by Similarity command. [P]

- Added new HTML features to the Markdown toolbar, which has been redesigned as the Markdown/HTML toolbar. The previous HTMLBar plugin has been discontinued. [P]

- The latest version lets you use special keywords in regex highlight strings to set additional conditions, like `(?#_text_c!=17)`. Highlight strings can be specified in the Highlight (1) page of Configuration Properties. [PF]

- The Extract Frequent Strings command now works on the filtered content when filters are applied. [P]

- Improved cursor placement after sorting. [P]

- Improved the speed of startup and Extract Frequent Strings commands.

### Test results:

| v25.0 | v25.1 | v25.2 | v25.3 | Comparison to v25.0
--- | --- | --- | --- | --- | ---
Launch EmEditor [*A] | 0.201 seconds | 0.127 seconds | 0.112 seconds | 0.106 seconds | 1.90 times faster

*A: All default settings, Windows 11, Ryzen 9 7950X, 96 GB RAM.

| v25.2 | v25.3 | Comparison to v25.2
--- | --- | --- | ---
Extract Frequent Strings, Whole Lines [*B] | 31.8 seconds | 7.16 seconds | 4.44 times faster
Extract Frequent Strings, Words [*B] | 20.3 seconds | 14.3 seconds | 1.42 times faster

*B: All default options, 1.34 GB, 100 million lines, random ASCII text file, Windows 11, Ryzen 9 7950X, 96 GB RAM.

## New Options

- An asterisk (*) will now appear next to the page title in the Customize dialog box, Customize Macros dialog box, and Configuration Properties to show that the options have been changed from their default settings.

- Added Sort by Similarity to the How to Sort list box in the Advanced Sort dialog box. [P]

## New Commands

- Sort by Similarity [P]

## Plug-in New Features [P]

### Chat with AI

- Added support for Google provider.

- Added support for GPT-5.

- Added tool calling support. These EmEditor tools can be made accessible to the AI to read or modify your document.

- Added the Tool Calling, Update, and Reset Settings pages to Settings.

- The AI assist writing now uses gpt-5-mini by default.

- When AI assist writing suggestions are visible, you can press the Spacebar to insert a space.

- In the AI Prompts page of the Customize dialog box and the New Prompt dialog box, the Max tokens and Temperature (randomness) titles became check boxes. Clearing these check boxes allows you to use the default values.

### HTMLBar

- Retired the HTMLBar plugin; its features are now built into the Markdown/HTML toolbar.

### Notes

- [P] EmEditor Professional only

- [PF] EmEditor Professional and EmEditor Free