On versions prior to 2.0, the "Recently modified" list displayed all issues, so it was a quick way to browse all issues. Now it is limited to the last 30 days and this cannot be modified. There seems to be a variable in the code, $t_recent_days, but it cannot be configured and there's a TODO by @cproensa next to it that it should be made configurable. Since I couldn't find any issue here on the tracker about making this variable configurable, I submit this issue to keep track of the TODO.