# Welcome to the Komodo User Guide

- ## What's new in Komodo Edit

  - Performance and Stability Improvements: The underlying Mozilla source code has been updated in Komodo, which has led to better security and stability of the Komodo platform as a whole. Numerous performance improvements have been made to Komodo to make it speedier in the tasks it performs, especially with large files:
    - Komodo will now automatically style very large HTML documents as text in order to support faster edits and re-displaying of the document.
    - The Find search speed has been increased, making it faster to search your documents.
  - Primary language preferences: It is now possible to configure which languages you'd like to see as primary languages in Komodo. The primary languages are the first group of languages seen in the language drop-down menus, whilst secondary languages are grouped under the Other sub-menu.
  - Sub-language background colors: It is now possible to give sub-languages a different background color. For example, when editing a HTML file you can set the JavaScript background color to be green and all the JavaScript code will appear as green section block within the editor.
  - View HTML Source: If you drag and drop a URL onto Komodo (http://, https://), Komodo now offers to view the source contents of this web page. This is convenient for checking the underlying HTML source code of web pages.
  - PHP: New PHP 5.3 support:
    - Code completions for \Namespaces
    - Syntax coloring of latest keywords ("namespace", "use", "as", etc...)
    - Autocomplete and calltips for PHP 5.3 stdlib
  - Numerous bug fixes and other minor improvements.

  (Read the full Release Notes.)

- ## Support and Community

  The ActiveState Community site has resources to help you use Komodo effectively:

  - Komodo FAQs
  - Komodo Forums

- ## Sample Project

  Get started fast with Komodo's Sample Project.

- ## Feature Showcase

  Quick Demos showing advanced search functionality, editing, debugging, and more.