Hello, in version 6.0101, a change has been made to ensure that the distance between two stirrup arms is 25fi. Let's examine the attached picture: The left column is 6.01, the right column is 6.0101. In the right column, 2fi16 additional reinforcement has been added to provide 25fi in the long direction. However, it is seen that there is no need for two reinforcements put forward in the direction of 25. Therefore, for only 16 single reinforcement selection conditions, besides 25fi, controls that will make the purchase price close to 1% are also included in the program. needs to be added. We have written this situation in our work list. For now, you can reduce the 6fi16 reinforcement selection, which appears in the major direction in the column reinforced concrete dialog, to 4fi16. Or you can allow 14-16 reinforcements to be used in reinforcement selection. good work