Notepad++ is a free source code editor (and Notepad replacement), which supports several programming languages, running under the MS Windows environment.


v3.9 new features and fixed bugs (from v3.8) :
1. Remember the bookmarks, zoom level and visibilities of white space/EOL characters in each saved session.
2. Add the capacity to clear read only attribute.
3. Fix the reload bug for read-only file.
4. Add the capacity to write the files which have the system attribute.
5. Backup file on each save (optional : verbose mode & normal mode).
6. Add the close button for each tab like Opera (optional).
7. Add double click on tab to close document feature (optional).
8. Add word completion (Alt+Space) feature.
9. Fix the line number margin display bug.
10. Add Opera style task list tab switcher (Ctrl+Tab or Mouse Right Click + Mouse Wheel).
11. Add Ada, Caml, AutoIt, KixTart, Matlab, Verilog language support.
12. Add TeX folding support.
13. Maitaining of identation is now optional (ON by default);

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Source: Msfn.org