Our experience was as per the 11+ tutor above. Definitely up to end of yr 6 and beyond was covered even though the test is at the start of year 6.
My dd got a place at a SS grammar and was tutored but the tutoring was just focussed on practising what might come up not learning new concepts.
She was able to pick up the new concepts from being already ahead and naturally finding learning easy if that makes sense.
She has since skipped a school year and similarly has picked up what she missed without being specifically taught it.