2017/07/02 Drawing became smooth. Drag-and-drop operation was improved. I changed the name from Cutting Planner to 2D Cut Optimizer. 2009/09/12 Start creating 2010/05/09 Ver 0.00 2010/06/13 Ver 0.10 2010/07/11 Ver0.20 First public. 2010/07/25 Ver0.30 2010/09/12 Ver0.31 2010/10/03 Ver0.40 Up to now it is a prototype. 2011/01/04 Ver1.00 2011/02/13 Ver 1.10 2011/03/21 Var 1.20 2011/06/12 Var 1.30 2011/07/17 Ver 1.40 2011/09/11 Ver1.50 2012/01/04 Ver1.61 2012/03/18 Ver1.70 2012/05/02 Ver1.71 2012/07/22 Ver1.72 2012/08/14 Ver2.00 2012/09/02 Ver2.02 2012/09/30 Ver2.10 2012/10/07 Ver2.11 2012/10/21 Ver2.20 2012/11/11 Ver2.30 2012/11/18 Ver2.31 2012/12/08 Ver2.40 2012/12/23 Ver2.41 2013/01/13 Ver2.42 2013/02/10 Ver2.50 2013/02/24 Ver2.60 2013/03/10 Ver2.61 2013/03/31 Ver2.62 2013/04/07 Ver2.63 2013/04/21 Ver2.64 2013/05/06 Ver2.65 2013/05/12 Ver2.66 2013/07/18 Ver3.01 2013/09/16 Ver3.02 2013/11/24 Ver3.03 2013/12/14 Ver3.04 2014/01/03 Ver3.05 2014/02/02 Ver3.06 2014/02/23 Ver3.07 2014/03/30 Ver3.08 2014/04/26 Ver3.09 2014/05/06 Ver3.10 2014/05/17 Ver3.12 2014/06/01 Ver3.20 2014/06/14 Ver3.21 2014/07/21 Ver4.00 2014/08/17 Ver4.01 2014/09/21 Ver4.02 2014/10/06 Ver4.03 2014/10/13 Ver4.04 2014/10/24 Ver4.05 2014/11/01 Ver4.07 2014/11/08 Ver4.08 2014/11/16 Ver4.09 2014/12/07 Ver4.10 2015/01/02 Ver4.20 2015/01/18 Ver4.20 2015/02/11 Ver4.30 2015/03/15 Ver4.31 2015/03/15 Ver4.32 2015/05/07 Ver4.40 2015/06/15 Ver4.50 2015/07/05 Ver4.60 2015/08/02 Ver4.70 2015/09/20 Ver4.71 2015/11/01 Ver4.90 2015/11/29 Ver4.91 2016/01/11 Ver5.00 2016/01/27 Ver5.01 2016/03/21 Ver5.02 2016/04/09 Ver5.03 2016/05/04 Ver5.04 2016/06/04 Ver6.00 2016/07/31 Ver7.00 2016/09/04 Ver7.10 2016/12/04 Ver7.20 2016/12/14 Ver7.21 2017/01/01 Ver7.40 2017/01/22 Ver7.41 2017/04/23 Ver7.54 2017/05/27 Ver7.55
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