What to expect in Lima, the 12th Tezos protocol upgrade proposal

With the Kathmandu upgrade now successfully activated, it's time to leave the Himalayas and take a trip to Lima, capital of Peru.

What to expect in Lima, the 12th Tezos protocol upgrade proposal
Photo by Ignacio Correia 🔴 / Unsplash

With the Kathmandu upgrade now successfully activated, it's time to leave the Himalayas and take a trip to Lima, capital of Peru. Founded in 1535, Lima was considered the jewel of the Spanish empire, and is still among the most important cities in Latin America. It's appropriate then, that Lima is the name adopted for Tezos' 12th protocol upgrade proposal.

While work on next-generation enshrined optimistic rollups is progressing, they won't be part of the Lima proposal. Instead, following on from improvements made in Kathmandu, Lima is focused on speeding up block processing through pipelining, with pipelined validation now extended to block production, reducing the time and effort required for bakers to propose new blocks.

If approved, Lima will also introduce consensus keys, which allow bakers to designate a specific key for signing blocks and consensus operations. The proposed implementation will allow bakers to change their consensus key without changing their public address.

Other changes include improvements to tickets, to deprecate the creation, storage and transfer of 'zero-amount' tickets, which should reduce the risk of bugs in smart contracts.

In collaboration with Marigold, TriliTech, Oxhead Alpha, Tarides, DaiLambda and Functori, Nomadic labs has published a more detailed breakdown of the contents of the Lima protocol upgrade proposal. Tezos Ukraine has also published a summary of the changes coming in Lima, which you can read here.


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