EPIC: Cosmos Hub Upgrade to Gaia v13.0.0

[mpoke]

Cosmos Hub Upgrade to Gaia v13.0.0

After Cutting Release Candidate

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1. Coordinate with Hypha to test release candidate
2. Create proposal text draft
3. Post proposal text draft on forum
4. Upgrade release and replicated security testnets (note: on Wednesdays)
5. Review post-upgrade status of affected features if necessary

Before Proposal Submission (TODO sync on a call)

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1. Cut final release
2. Predict block height for target date
3. Update/proofread proposal text
4. Transfer deposit amount (i.e., 250 ATOMs) to submitter wallet
5. Create upgrade docs (with disclaimer upgrade prop still being voted on)
6. Coordinate with marketing/comms to prep communication channels/posts

Voting Period

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1. Estimate threshold of validators that are aware of proposal and have voted or confirmed their vote
2. Coordinate with marketing/comms to update on voting progress (and any change in upgrade time)

Proposal Passed

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1. Determine "on-call" team: available on Discord in #cosmos-hub-validators-verified during upgrade
2. Coordinate with marketing/comms on who will be available, increase regular upgrade time updates and validator outreach
3. Pre upgrade Gaia docs docs/migration/* and hub-overview (docs: Updated migration docs for v13 release #2754)
4. Post upgrade Gaia docs: docs/getting-started/quickstart.md, docs/hub-tutorials/join-mainnet.md, docs/migration/ (docs: Post v13 docs update #2757)
5. Prep chain-registry update: cosmoshub/chain.json (docs: Upgrade Chain Registdocry for Gaia v13 release chain-registry#2896)
6. Prep cosmos mainnet repo update (docs: Update for Gaia v13 release mainnet#174)
7. Prep internal statesync node for upgrade (confirm cosmovisor configured)
8. Reach out to main dependency teams -- Comet, IBC, SDK -- for assistance during the upgrade (#gaia-release-warroom on Slack)

During Upgrade (note: on Wednesdays at 15:00 UTC)

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1. Available on Discord in #cosmos-hub-validators-verified
2. Available on Twitter / Slack / Telegram

Post Upgrade

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1. Merge PRs for Gaia docs & chain-registry update
2. FAQ: collect issues on upgrade from discord
3. Hold validator feedback session