Booster 13 was successfully launched on Nov 19, 2024 along with Starship 31 on the Integrated Flight Test 6 (IFT6). Main objective for B13 was to be caught by the tower chopsticks for the second time, but the attempt to return to launch site was aborted and made an ocean splashdown instead.

Changes on B13 similar to B12 model:

-No COPVs in upper dome section

-Redesigned Starlink Terminals on chines covering COPVs (square dishes)

-Engine skirt shielding black edge removed

-Additional FTS enclosure on the umbilical side near the aft chines

-Reinforced stringers on booster top section 

-Reinforced stringers on stabilizer pin sections

-Cowbells are smaller in size

Source: Ringwatchers.com