Epic: post-merge prep

[wackerow]

Context: Epic from Q3 Roadmap ethereum/ethereum-org-website#7166

Epic Description

Ethereum's transition to proof-of-stake via The Merge is upon us. The Launchpad has recently been updated to help prepare stakers for changes coming to the network related to this upgrade, including a Merge Readiness Checklist to help assure all node operating stakers are prepared (#480).

As the core devs roll out the final client updates to prepare for The Merge, small adjustments to the content on this will be needed to "activate" the remaining tasks. After The Merge is completed, the content available to help stakers prepare will no longer be needed in the same context. This epic will consist of organizing and rolling out these updates.

A similar initiative is being pursued in parallel to update the ethereum.org resources, being tracked here: ethereum/ethereum-org-website#7075. This epic will focus on stakers and node operators as the primary personas being targeted.

Involves

• Updating Merge Readiness Checklist when the Mainnet TTD is announced, and updated client releases are available.
• Scope out post-merge related changes that will be required, including which content from the Merge Readiness Checklist we will want to keep vs remove, and decide where to place this content once The Merge is complete.
• Preparing appropriate content changes, and coordinate with external contributors to ensure accuracy
• Does not involve updates related to withdrawals, as these will follow in the Shanghai upgrade to come.

Goals/checkpoints

• Update Merge Readiness Checklist after TTD for Mainnet has been announced, and clients have released their updates.
• Audit this checklist to determine which information will still be relevant after The Merge
• Plan content updates and placement of any pertinent information that is still relevant after The Merge.
• After a successful upgrade, upgrade the site to reflect this new state of Ethereum.

Associated PRs

• Extract and re-use ClientDiversityWarning [Fixes #508] #512
• Update client terminology #513
• Await TTD notice added for MergeReadiness [Fixes #511] #514
• Add actions words for Merge Readiness CTAs #515
• Add sync note to client selection #516
• Update merge readiness checklist for ttd #535
• Add link to mainnet TTD blog announcement #544
• Adds Bellatrix date warning #548
• Deprecate MergeReadiness #557

[samajammin]

Related to #448

[samajammin]

@wackerow can we close this out? I believe these TODOs have been completed.

[wackerow]

Yep! I think we're good to close this 🎉

[samajammin]

Great thanks @wackerow - please link the relevant PRs to this issue 😄