What happened: Scuderia Ferrari said its cars were moving from medium tires to softs in the second half of the session. At the time of the update, they were P3 and P4 and had not yet set laps on the softer compound.

Why it matters: The update signals that the session order was still unsettled, with faster-tire runs still to come. On the Monaco weekend, single-lap pace is especially important because qualifying position carries heavy race-day weight.

What to watch: Watch whether the first soft-tire laps move the team to the top of the timing screen. The next benchmark is how those runs compare once rivals complete their own qualifying simulations.