Introduced a more robust version of the blockchainโs consensus algorithm (Emmy+); simplified smart contract development; refined the delegation process.
Increased gas limit per block and per operation; improved the accuracy and resiliency of the formula used for calculating baking and endorsing rewards.
Added Sapling and BLS12-381 to enable privacy-preserving smart contracts and tickets for native permissions. Updated amendment process by lowering period length to 5 cycles and adding a 5th Adoption Period.
Doubled maximum size of operations, which more than doubled the maximum size of smart contracts. More gas optimizations, sped up gas arithmetic by a factor of ten. Enabled more intuitive smart contract development by adopting depth-first execution order.
New concensus algorithm (Emmy*) which halved the block production time (from 60 secs to 30secs), liquidity baking, even more gas optimizations and many more improvements.