Version 3.1

-	Acquisition algorithm has been optimized for compatibility with HP and Fujitsu scanners.
-	Opportunity to use any authentication schemes (such as basic, digest, NTLM, and Kerberos authentication) at image uploading has been added.
-	Redirection functionality has been added to image uploading algorithm.

Version 3.0

-	Two new classes allow to upload several acquired images per session to HTTP, HTTPS or FTP server.
-	New documentation in MSDN format has been created. XML documentation file has been created.
-	Examples for MS Visual Studio .NET 2005 and Borland Developer Studio 2006 have been added.
-	Examples for MS Visual Studio .NET 2003 and Borland Developer Studio 2003 have been updated.
-	The PostScan event has been deleted, two new events (ImageAcquired and ScanCompleted) have been added.
-	Image's rotation function (RotateImage method) has been added.
-	New properties (DeviceOnline, ShowIndicators, JobControl, CapValueType) have been added.
-	The Rotation and NoiseLevelInBlankImage properties have been deleted.
-	All properties begin with the upper letter now. C# code which uses library must be updated.

Version 2.1.5

-	Image uploading process has been modified for compatibility with IIS 6 and 7 servers.
-	Bug in scanning process from separate thread has been fixed.

Version 2.1.1

-	Ability to set a cookie in image uploading session has been added. This can be useful if you must authenticate with the Lotus Domino server.
-	Bug in work with ADF of Canon MF5530/5550 has been fixed.

Version 2.1

-	Functions for image processing have been optimized and accelerated.
-	Library now allows to create a custom progress indicator of image scan.
-	Algorithm of scanning process has been updated for compatibility with Fujitsu scanners.
-	Examples have been updated.

Version 2.0

-	Functionality for detecting correct position of image (deskew functionality) has been added.
-	Image processing functions (despeckle, border detection, blank page detection) have been optimized.
-	Version of library which is compiled under .NET Framework 2.0 is available now.

Version 1.6

-	Now it's possible to use File transfer mode for acquiring images. This transfer mode can greatly increase speed of scanning if high-speed scanner is used because scanned images will be saved directly to a disk.
-	Minimal and maximal values for brightness and contrast was determined not correctly for some models of Canon scanners. Now this bug is fixed.
-	Bug was found when library was used in a background thread. Now this bug is fixed.
-	Library's compatibility with .NET Framework 2.0 was increased.

Version 1.5.7

-	Algorithm of scan process has been optimized for compatibility with commercial TWAIN driver and WIA driver of HP 5590, HP 8250 and HP 8290.

Version 1.5.3

-	Temporary file more is not used at adding image to multipage TIFF file.
-	Mistake in the appProductName property has been corrected.

Version 1.5.2

-	Algorithm of scan process has been optimized for compatibility with Xerox and Visioneer scanners.

Version 1.5

-	Algorithms of noise removal, border detection and detection of blank page have been optimized.

Version 1.4

-	Ability to use the Native images transfer for images acquisition has been added.
-	Algorithm of FTP transfer has been modified for compatibility with Pure-FTP and IIS 6.0 FTP servers.

Version 1.3

-	Ability to despeckle acquired images has been added.
-	Ability to detect border of acquired images has been added.
-	Ability to rotate acquired images has been added.
-	Ability to acquire images with bit depth more than 8 bit has been added (16 bit gray images and 48 bit color images).
-	DeleteImage method has been added. This method allows to remove selected image from internal images buffer.
-	Library is now compatible with .NET Framework 1.0, 1.1 and 2.0.
-	Algorithm of IsBlankImage method has been updated.