November 15, 2012. Version 2.3.2. Spanish translation by Roberto Porcar.
April 13, 2012. Version 2.3.1. Fixed case-sensitive file search.
March 8, 2012. Version 2.3. C++ and Python syntax highlight. Minimizing ?? and atomic groups in regular expressions. Fixed a crash when using minimizing repetions, a display bug, and typos in the help file (thanks to Andy).
January 3, 2012. Version 2.2. Lookaround and braces in regular expressions. Fixed: the program crashed when processing invalid UTF-8 or when changing a long replacement; incorrect PHP syntax highlight and other minor bugs. Implemented \b \B \A \Z anchors and non-capturing groups. Updated German translation by Stefan Schuck.
November 18, 2011. Version 2.1.2. Improved date/time display. Fixed: command-line parameters were not interpreted; the program crashed when inserting text of a certain length.
November 11, 2011. Version 2.1. Fixed: date/time was displayed incorrectly; it was possible to find the same file twice, and five other bugs. Added File menu.
October 25, 2011. Version 2.0 final. Fixed tools setup (thanks to Massimiliano Tiraboschi). Fixed a memory bug (leading to a crash) and two bugs, which caused Aba to skip more files than necessary. Fixed results pane resizing. The match case mode was not saved in favorites; it's fixed now. Added an option to remove preferences and undo items to uninstaller. Removed Close button from the Replacement complete window. Corrected color scheme. The buttons are now wider to accommodate translated strings.
October 5, 2011. Version 2.0 beta 2. Fixed the problem with character classes (thanks to Kyle Alons). A file is now skipped if you don't have enough permissions to read it (thanks to JJS). Fixed updating status bar on the Undo tab. Aba's shortcut is installed only for the current user now. Corrected terminology in the help file.
September 28, 2011. Version 2.0 beta.
January 5, 2010. Version 1.3.2. Fixed context menu under 64-bit Windows (thanks to Massimiliano Tiraboschi).
August 17, 2009. Version 1.3.1. Keyboard interface improvements (thanks to Kyle Alons).
May 23, 2009. Version 1.3. Fixed copying text in a non-ASCII codepage, searching in a large number of files, and other bugs. Added support for non-greedy matches and backreferences in replacement text. Implemented copying results to clipboard, reading configuration data from the program directory, and saving main window position and size. Improved keyboard interface.
Jul 21, 2008. Version 1.2.3. Fixed searching in the root of a drive; fixed status bar size in large fonts scheme. Updated to Unicode 5.1 character database.
May 14, 2008. Version 1.2.2. Added German translation (thanks to Stefan Schuck).
Feb 7, 2008. The copy of this help file was published online.
Jan 7, 2008. Version 1.2.1. Bugfix release. Added Italian translation (many thanks to Angelo from Geminisoft).
Jan 1, 2008. Version 1.2 released. Selected file name and encoding are now displayed in the status bar. Besides, several bugs were fixed.
Nov 25, 2007. Version 1.1 released. Aba can now be integrated with Total Commander.
Oct 21, 2007. Version 1.0. Initial public release.