I had some yeast shipped during that massive 100+ heat wave last summer. Two different packs. One was DOA, but the other survived with a starter.
Make a starter and you'll be ok. But my rule after the experience above, I do not order liquid yeast. Local purchase only. Dry yeast is another story.
Fermenting: Gose, Lichtenhainer
Souring/Funkifying: Brett C Old Ale, Lamebic, Flanders Red, Flanders Pale Ale, Oud Bruin, Session Kriek
Bottled: Imperial IPA, APA, American Amber, Scottish 60/-, Robust Porter, Strong Mild
Casked: Scottish 80/-
Bottle Cellar: Brett B Tripel, Brett C English Barleywine, Lamebic, Quadrupel, Tripel, Brett C Bitter, Wild Cider, Bourbon Barrel Sour Stout, Wee Heavy