Wish I knew this so I could set myself up for the disappointment.No.
General rule of thumb when there's "FIA" (or "World Series" events) on is there's not an update the same day as a race. There's a race tomorrow.
However there isn't a race on April 6th, or April 13th.
We've also had most of the updates (including v1.04 before launch) on a Thursday; only the emergency 1.08 patch and last week's 1.09 were on Fridays (the v1.07 patch which v1.08 replaced was also a Thurday) - and 1.09 was also a rare example of breaking the no-patch-on-race-day "rule".
The next Thursdays are April 7th and April 14th.