It is difficult to update the software
Structural frame evaluating an action via the adjective 'difficult'.
On such old systems, it is difficult to update the software without breaking anything.
—Why didn't they update it? —It is difficult to update the software without losing compatibility.
The technician warns that it is difficult to update the software on such old machines.
On such old systems, it is difficult to update the software without breaking anything.
—Why didn't they update it? —It is difficult to update the software without losing compatibility.
The technician warns that it is difficult to update the software on such old machines.