docs: apply FPC docs to versioned docs (backport #22541)#22810
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critesjosh merged 4 commits intoApr 28, 2026
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- Ports changes from #22496 (Nethermind FPC docs) and #22497 (private FPC guide) to the `v4.2.0-aztecnr-rc.2` developer versioned docs - Updates `how_to_pay_fees.md` with new payment methods table, deprecation notice, third-party FPC section (Nethermind example), and private fee payment section - Updates `fees.md` (foundational topics) with expanded FPC payment methods description, new "How FPCs work" section, and teardown phase clarification - Updates `how_to_create_account.md` anchor links to match renamed heading - Adds new `how_to_use_private_fee_juice.md` guide (DeFi Wonderland's PrivateFPC) - [ ] `yarn start` in `docs/` — verify versioned pages render correctly - [ ] Confirm internal links resolve (anchors to `#sponsored-fpc-devnet-and-local-only`, `#third-party-fpcs-on-testnet-and-mainnet`, `#how-fpcs-work`, and the new private FPC guide) - [ ] Verify external links to Nethermind and Wonderland repos are valid
Adapts cherry-picked changes to v4.2.0-aztecnr-rc.2 layout: - Remove an orphaned ```typescript opener and unused GasSettings import left between the resolved conflict blocks in how_to_pay_fees.md. - Add the new how_to_use_private_fee_juice.md guide (the PR added it under version-v4.2.0/aztec-js/, which doesn't exist in v4-next; the closest analog here is version-v4.2.0-aztecnr-rc.2/aztec-js/). - Repoint the v4.2.0 source-code link in the new guide to v4.2.0-aztecnr-rc.2.
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BEGIN_COMMIT_OVERRIDE feat(docs): apply FPC docs to developer versioned docs (#22541) docs: apply FPC docs to versioned docs (backport #22541) (#22810) test(aztec-up): add full-dev-path e2e test for installed toolchain (#22801) fix: pass send message as (#22820) fix(aztec-up): handle CI=true in timeout function (#22827) refactor(sequencer): sign last block before archiver sync (#22117) END_COMMIT_OVERRIDE
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Backport of #22541 to
backport-to-v4-next-staging.Cherry-picked merge commit
8b748b9c52and resolved conflicts. The three-commit structure is preserved: cherry-pick with markers, conflict resolution, and one adaptation commit.Per-file analysis and resolution notes:
https://gist.github.com/AztecBot/a68baa18840f313a136985d096d6be79
Path mapping
The source PR modified
docs/developer_versioned_docs/version-v4.2.0/..., butversion-v4.2.0/does not exist in v4-next; the versioned docs there are split intoversion-v4.1.0-rc.2(testnet) andversion-v4.2.0-aztecnr-rc.2(mainnet). Git's rename detection routed the changes:version-v4.2.0/foundational-topics/...→version-v4.1.0-rc.2/foundational-topics/...version-v4.2.0/aztec-js/how_to_pay_fees.md→version-v4.2.0-aztecnr-rc.2/aztec-js/how_to_pay_fees.mdversion-v4.2.0/aztec-js/how_to_use_private_fee_juice.md(new file) → added underversion-v4.2.0-aztecnr-rc.2/aztec-js/docs-developers/...→ same pathI left the split as git produced it, matching the precedent in #22762.
Reviewer notes
v4.1.0-rc.2, aztec-js inv4.2.0-aztecnr-rc.2). Happy to propagate to both versioned trees for symmetric coverage.version-v4.2.0-aztecnr-rc.2/aztec-js/how_to_pay_fees.mdstill contains olderPrivate FPCs enable…/Public FPCs can be used…snippets that are now redundant with the new sections the PR introduced; left in place since the PR did not touch them.version-v4.1.0-rc.2/foundational-topics/fees.mdended up with a duplicategas_settings.tssource link (one v4.1.0-rc.2, one v4.2.0) from auto-merge; the duplicate is outside the conflict region so I did not touch it in the conflict-resolution commit.Test plan
ClaudeBox log: https://claudebox.work/s/f04540a46c506217?run=1
ClaudeBox log: https://claudebox.work/s/f04540a46c506217?run=1