Version 4.6.2 - April 1, 2009

• Fixed loading issue with 64bit version of AutoCAD 2008

Version 4.6.1 - September 24, 2009

• Fixed licensing issue with Vista UAC.
• Fixed issue with sheet metal screws.

Version 4.6.0 - August 27, 2009

• Updated to work with AutoCAD 2010.
• Now compatible with 64bit versions of AutoCAD.
• New, more reliable, licensing system.

Version 4.5.5 - October 24, 2008

• Fixed a problem where the dropdown menu would not appear.

Version 4.5.4 - May 9, 2006

• Compatible with AutoCAD 2007.

Version 4.5.3 - June 8, 2005

• MPT Toolbars in AutoCAD 2006 should now load properly.

Version 4.5.2 - January 15, 2004

• Fixed a problem where attaching on blocked fasteners did not see the fastener

Version 4.5.1 - September 15, 2003

• Fixed a problem that could cause MPT 4 Lite to give the error "C\cadfx\mpt45-Lite\mpt4lite-16.arx cannot find a dll or other file that it needs."

Version 4.5 - September 8, 2003

• AutoCAD 2004 Compatible.

Version 4.0.11 - August 17, 2001

• Fixed block mode error in Set Screws (name didn't reflect point type).
• Fix flange thickness of SC and ST steel shapes.

Version 4.0.10 - April 18, 2001

• Fixed a problem where a linetype was left over after using block mode.
• Fixed a licensing problem that caused AutoCAD to remain running in the background.
• Lock washer block name to include if hidden or not for blocks.
• Fixed error on modifying charted holes who's ucs is no longer valid
• Fixed Side view (hidden) on Jam nut (was drawing solid)
• Fixed the Alias Configure to stop messing with the order
• Fixed loss of osnaps when using washers
• Reset Linetype after Steel Shape when not using Bylayer.
• Fixed failure of export text to overwrite existing file.
• Fixed failure of mating options when using LW polylines
• Fixed washer misplacement with osnaps on and at distance
• Fixed sshape failure to reset current color.

Version 4.0.9 - August 15, 2000

• Set screws: when draw chamfer was turned off in the config, the set screws were being drawn incorrectly.
• Corrected a multiple insert bug when using blocks and washers.
• Corrected Low Head Socket Head screw bug when using blocks where if a normal S.H.C.S. was placed first, the low head version would be drawn the same.
• Lock Washer of Hex Nut was drawn in wrong direction.
• Fixed database error for Socket Head Cap Screw.
• Corrected a bug when Power Editing a Self Locking Nut

Version 4.0.8 - March 14, 2000

• Removed tap information in shoulder screw program size display.

Version 4.0.7 - March 6, 2000

• More improvements to licensing mechanism. Better feedback is given to the user when problems arise with network situations.

Version 4.0.6 - February 15, 2000

• MPT database updated to correct a small lock washer discrepancy.
• Internal licensing mechanism greatly improved and revised. Should correct the timing out errors that a few people have been receiving.

Version 4.0.5 - December 9, 1999

• Completely revised installation system that is quicker and more efficient.
• Fixed problem that could possibly cause MPT 4 to time out after 60 minutes even though the product is licensed.
• Corrected thread length miscalculation on screws.
• Corrected malfunction of blocking mechanism where the last entity in the drawing was an attributed block. Appeared by having another block in the drawing merged with MPT blocks.

Version 4.0.4 - November 19, 1999

• Corrected blocking mechanism failure for C'Bore Holes.

Version 4.0.3 - November 1, 1999

• Fixed problem with steel shapes not inserting properly on first instance.

Version 4.0.2 - October 25, 1999

• When using block mode on fasteners that have hex & spline sockets, the type of socket was not stored properly in the block.

Version 4.0.1 - October 13, 1999

• Fixed problem with licensing between Win 95 and Win NT.

Version 4.0 - August 12, 1999

• First full public release!