[PROPOSAL 924][PASSED] Gaia v17 Software Upgrade

Changelog: • 2024-05-17: Revised title for on-chain proposal & added link to release • 2024-06-05: Updated title for vote passing Background The Gaia v17 release is a major release that will follow the standard governance process by initially submitting this post on the Cosmos Hub forum. After collecting forum feedback (~ 1 week) and adapting the proposal as required, a governance proposal will be sent to the Cosmos Hub for voting. The on-chain voting period typically lasts 2 weeks. On governance vote approval, validators will be required to update the Cosmos Hub binary at the halt-height specified in the on-chain proposal. Release Binary & Upgrade Resources IMPORTANT: Note that Gaia v17.0.0 binary MUST be used. • The release can be found here . • The changelog can be found here . • The upgrade guide can be found here . Release Contents This release adds Partial Set Security (PSS) features to the Cosmos Hub blockchain. When the PSS enabled chain binary lands on mainnet, new consumer chains will be able to: • choose the % of Cosmos Hub’s voting power that is required to operate the consumer chain • use allow/denylists to customize validator…

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As an ISLE participant, PSS is a must and will make ICS chains management way easier, better and observable, so its a no-brainer.

One thing to consider: the logic of current consumer chains being converted to Top N chains should be highlighted and broadcasted to validators as much as possible, as the bottom 5% will get kicked out of the consumer active set until they opt-in (it’s clarified in this post, I just want to highlight that communicating this at all stages is extra important). Maybe some guide for validators on how to prepare for the upgrade itself and the consequent consumer chains actions they will need to do will help here?

Hope this’ll go as smooth as the today’s v16 upgrade, LFG!

It is with utmost respect to the Informal team that we will cast a YES vote to support the update to v17. This important milestone will undoubtedly be pivotal in the long history of the Cosmos Hub. We foresee the next major development to be the addition of layered security, which will offer more composite collateral sources to the mix. The Hub is at a crucial turning point, poised to deliver on one of the most promising features envisioned in the Cosmos whitepaper released in 2016. To quote the authors: Since the Cosmos Hub acts as the central ledger for the whole system, the security of the Hub is of paramount importance. While each zone may be a Tendermint blockchain that is secured by as few as 4 (or even less if BFT consensus is not needed), the Hub must be secured by a globally decentralized set of validators that can withstand the most severe attack scenarios, such as a continental network partition or a nation-state sponsored attack. source: cosmos/WHITEPAPER.md at master · cosmos/cosmos · GitHub Indeed, the Hub is now about to grow beyond offering the most secure enclave within the Cosmos Ecosystem. It is now about to outshine this security and propose it as a…

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Thanks for the comment Govmos!