New in Version 25.3

August 20, 2025

New General Features

  • Added theSort by Similarity command.[P]
  • Added new HTML features to theMarkdown toolbar, which has been redesigned as theMarkdown/HTML toolbar. The previousHTMLBar 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).[PF]
  • TheExtract Frequent Strings command now works on the filtered content when filters are applied.[P]
  • Improved cursor placement after sorting.[P]
  • Improved the speed ofstartup andExtract Frequent Strings commands.

Test results:

v25.0v25.1v25.2v25.3Comparison to v25.0
Launch EmEditor [*A]0.201 seconds0.127 seconds0.112 seconds0.106 seconds1.90 times faster

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

v25.2v25.3Comparison to v25.2
Extract Frequent Strings, Whole Lines [*B]31.8 seconds7.16 seconds4.44 times faster
Extract Frequent Strings, Words [*B]20.3 seconds14.3 seconds1.42 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 theCustomize dialog box,Customize Macros dialog box, andConfiguration Properties to show that the options have been changed from their default settings.
  • AddedSort by Similarity to theHow to Sort list box in theAdvanced 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 forGPT-5.
  • Added tool calling support. These EmEditor tools can be made accessible to the AI to read or modify your document.
  • Added theTool Calling,Update, andReset Settings pages toSettings.
  • TheAI assist writing now usesgpt-5-mini by default.
  • When AI assist writing suggestions are visible, you can press the Spacebar to insert a space.
  • In theAI Prompts page of theCustomize dialog box and theNew Prompt dialog box, theMax tokens andTemperature (randomness) titles became check boxes. Clearing these check boxes allows you to use the default values.

HTMLBar

  • Retired theHTMLBar plugin; its features are now built into theMarkdown/HTML toolbar.

Notes

  • [P] EmEditor Professional only
  • [PF] EmEditor Professional and EmEditor Free