Input Output (the development company behind Cardano) said on a tweet:
“We have proposed the next parameter update as we continue to increase #Cardano network capacity in line with the plan. The proposal will increase block size by a further 8KB taking it from 72KB to 80KB,”
What are these blocks? Block are batches of transactions that are confirmed and recorded on a blockchain. Larger sizes mean more transactions can be included in each batch, but it can affect transaction times and overall network capacity.