New

• Added 32- and 64-bit support for all supported games.
• Added the ability to retry checking for updates in the Update center.
• Added borderless windowed mode support.

API changes

• Implemented the ability to set individual cleaning parameters for each directory.
• Converted the cleanup database file to the new format.
• Switched the cleanup module to use the new API.

Bug fixes

• Fixed TF2 detection on 32-bit operating systems.
• Fixed various games detection after the latest updates.
• Fixed removal of empty directories.
• Fixed download cache cleanup.

Other changes

• Updated the cleanup database file documentation.
• Updated the title of various forms.
• Rebased the installer engine to version 6.4.
• Rebased Doxyfile to version 1.13.2.

Refactoring and cleanup

• Added more debug strings to various classes.
• Performed major code refactoring of all internal modules.
• Performed major code refactoring of the library.
• Moved various string literals to resources.
• Unified error levels between logs and message boxes.