Development:Gradebook improvements
Same aspects of gradebook were not fully solved in 1.9.x, this page tries to summarize potential improvements
Overlook problem partially solve after the database freeze - workaround was to recalculate the grades on the fly so that users that can the hidden grades are ignored. This approach is expensive and can not be used in conditional activities, grade exports, etc.
Solution is to add new flag into grade categories - aggregate hidden grades. Having two values for each grade would be too complex, selective agrragation should solve most of the problems and should be reasonably backwards compatible.