ROS v4.x - API sessions not releasing

I have a problem where API sessions are not being full released. “/user active print” will result in thousands of entries created via the API as I monitor certain aspects via an API script every 5 minutes.

I see in v5b this has been addressed:-

Will this fix be back ported into v4.x?

I assume the sessions are actually closed and just the entries are not removed as there is no perceivable CPU or RAM usage from a unit with 10 entries to a unit with over 5000.

Other than a reboot (not possible in productions hardware) I do not see any other way of removing these ‘ghost’ entries.

My concern is that when the active user count reaches an unknown limit the routerboards may lockup!

problem is still actual on 4.9 and we are working on that problem. 5.x and 4.x differ, hence, problem is not solved for 4.x while it is done for 5.x