Also I don't understand what it means: "* First interpreter version that supported kGetTime(2 and 3)"
The GetTime kernel call supports different formats of return value.
(GetTime 1) returns the time of day on a one second resolution with up to twelve hours, 2 returns the time in two second resolution with 24 hours, and 3 returns the date since 1980.
According to the original changelog, these options were added December 12, 1989. They were quite proud of the backward compatibility.
According to MobyGames, Leisure Suit Larry 3 was released in November 1989, which nicely matches how its
KERNEL.SH has no mention of any parameters for
GetTime, as does LSL2's. Larry 5, from 1991,
does have parameters defined for
GetTime. So that all matches up.
And that's what "first interpreter version that supported kGetTime(2 and 3)" mean.