chore!: bump Aztec to 6.0.0-rc.1

[alejoamiras]

Moves every contract, test, script and dependency from Aztec 5.2.0 to 6.0.0-rc.1, with only the changes v6 forces.

What changes

• Noir deps: aztec-nr crates now come from aztec-labs-eng/aztec-nr (flat crate dirs). Escrow's serde moved to noir-projects/fnd/noir-protocol-circuits/crates/serde in aztec-packages.
• npm deps: @aztec/* → @aztec-labs/* pinned exactly to 6.0.0-rc.1 (the latest dist-tag points at a stale nightly), and @aztec/bb.js → @aztec-foundation/bb.js. @aztec-labs/foundation and @aztec-foundation/bb.js become explicit devDeps: tests import both, and they previously resolved only through hoisting.
• Noir source: DOM_SEP__PARTIAL_NOTE_COMMITMENT and DOM_SEP__NOTE_COMPLETION_LOG_TAG are now imported from aztec::note::partial_note; their values are unchanged. The escrow test's copy of the crate-private TXE oracle aztec_txe_getPrivateEvents now returns BoundedVec<BoundedVec<Field, 10>, 5> directly, matching rc.1.
• Build: v6 removed aztec inspect-contract, so the build's read-only inspection loop is gone. The .bak cleanup stays because bb aztec_process still emits them.
• Docs: a README line on the consumer SDK requirement, and a rewrite of the bump-aztec-version skill for v6's repo split, isolated installs, fixed test ports, and verification by tag → SHA.

Breaking changes

• Every contract's class id and address changes.
• The generated wrappers import @aztec-labs/aztec.js. The package still declares no dependencies, so consumers install it at config.aztecVersion.

Upstream pins

Nargo pins by tag only, and tags can move. These are the commits the tags resolved to, verified with git ls-remote and against the nargo checkouts that were compiled:

Source	Tag	Commit
aztec-labs-eng/aztec-nr	v6.0.0-rc.1	88ff1ded43051ed5393150799f4308aeda46e94a
AztecProtocol/aztec-packages	v6.0.0-rc.1	d521f0d940d096fbea5b62010d9c9c70f1dc0fd2
npm @aztec-labs/*, @aztec-foundation/bb.js	6.0.0-rc.1	published 2026-09-23

Validation

All run locally against the rc.1 toolchain, at this branch's HEAD:

• Noir: aztec compile, plus 433/433 tests on a TXE. The executed <package>::<test> set is identical to the base's, including the escrow key-derivation vector tests; the vectors are untouched.
• JS: 49/49 (yarn test:js) against a local rc.1 network, including the escrow TS↔Noir key-derivation cross-check.
• Benchmarks (run before review fixes that touched only comments and docs): all 6 suites complete on rc.1 with aztec-benchmark 5.0.1. Its peer range says <6, and yarn only warns; its dist has no runtime @aztec/* imports.
• Typecheck (including the 13 generated wrappers), prettier, a clean yarn build, npm publish --dry-run --tag rc, and a plain-Node import of the built Token wrapper. The export layout is identical to the published 5.2.0 tarball.
• Supply chain: the bump adds 45 lockfile entries. The 40 younger than 7 days are exactly the rc.1 release set (@aztec-labs/*, @aztec-foundation/*); no third-party dependency is younger than 7 days.

Caveats / follow-ups

• CI Node floor: aztec-ci-actions' setup-aztec still pins setup-node to 24.0.0, below v6's ≥ 24.12. CI doesn't break: the v6 installer installs its own Node, and every job passes.
• This targets a release candidate; re-bump to 6.0.0 when it ships.
• Not in this PR, because v6 doesn't force them:
  • 156 test-only variable does not need to be mutable warnings (v6's TestEnvironment no longer needs &mut).
  • v6's new "tests in contract crates" advisory.
  • An aztec-benchmark release with v6 peers.

🤖 Generated with Claude Code

[github-actions]

Benchmark Comparison

CPU	Cores	RAM	Arch
AMD EPYC 9V45 96-Core Processor	4	16 GiB	x64

Contract: escrow

🚦	Function	Gates			DA Gas			L2 Gas			Proving Time (ms)
		Base	PR	Diff	Base	PR	Diff	Base	PR	Diff	Base	PR	Diff
🟢	(partial) withdraw	485,780	354,645	-131,135 (-27.0%)	3,744	3,744		587,800	587,800		11,666	4,974	-6,692 (-57.4%)
🟢	withdraw	330,054	270,326	-59,728 (-18.1%)	832	832		499,700	499,700		9,536	3,968	-5,568 (-58.4%)
🟢	withdraw_nft	378,232	266,680	-111,552 (-29.5%)	1,440	1,440		527,400	527,400		10,434	4,084	-6,350 (-60.9%)

Contract: logic

🚦	Function	Gates			DA Gas			L2 Gas			Proving Time (ms)
		Base	PR	Diff	Base	PR	Diff	Base	PR	Diff	Base	PR	Diff
🟢	get_escrow	390,336	298,866	-91,470 (-23.4%)	192	192		456,000	456,000		10,508	4,376	-6,132 (-58.4%)
🟢	secret_key_to_public_keys	387,695	296,331	-91,364 (-23.6%)	192	192		456,000	456,000		10,577	4,592	-5,985 (-56.6%)
🟢	share_escrow	304,211	245,424	-58,787 (-19.3%)	1,952	1,952		520,700	520,700		9,289	3,840	-5,449 (-58.7%)

Contract: multitoken

🚦	Function	Gates			DA Gas			L2 Gas			Proving Time (ms)
		Base	PR	Diff	Base	PR	Diff	Base	PR	Diff	Base	PR	Diff
🟢	burn_private	260,232	222,468	-37,764 (-14.5%)	832	832		499,700	499,700		8,588	3,724	-4,864 (-56.6%)
🟢	burn_public	223,800	185,539	-38,261 (-17.1%)	416	416		638,292	638,286	-6 (-0.0%)	8,221	3,508	-4,713 (-57.3%)
🟢	initialize_transfer_commitment	225,054	188,484	-36,570 (-16.2%)	768	768		474,500	474,500		8,244	3,446	-4,798 (-58.2%)
🟢	mint_to_private	297,795	239,217	-58,578 (-19.7%)	1,408	1,408		511,400	511,400		9,257	3,770	-5,487 (-59.3%)
🟢	mint_to_public	223,800	185,539	-38,261 (-17.1%)	416	416		637,800	637,794	-6 (-0.0%)	8,200	3,357	-4,843 (-59.1%)
🟢	transfer_private_to_commitment	263,571	225,577	-37,994 (-14.4%)	1,024	1,024		511,400	511,400		8,650	3,751	-4,899 (-56.6%)
🟢	transfer_private_to_private	336,124	278,917	-57,207 (-17.0%)	2,048	2,048		555,100	555,100		9,646	4,196	-5,450 (-56.5%)
🟢	transfer_private_to_public	306,785	254,364	-52,421 (-17.1%)	1,056	1,056		714,677	714,671	-6 (-0.0%)	9,266	3,964	-5,302 (-57.2%)
🟢	transfer_public_to_commitment	223,800	185,539	-38,261 (-17.1%)	640	640		663,516	663,507	-9 (-0.0%)	8,222	3,435	-4,787 (-58.2%)
🟢	transfer_public_to_private	298,556	246,797	-51,759 (-17.3%)	1,024	1,024		683,958	683,952	-6 (-0.0%)	9,191	4,212	-4,979 (-54.2%)
🟢	transfer_public_to_public	223,800	185,539	-38,261 (-17.1%)	480	480		673,505	673,499	-6 (-0.0%)	8,245	3,371	-4,874 (-59.1%)

Contract: nft

🚦	Function	Gates			DA Gas			L2 Gas			Proving Time (ms)
		Base	PR	Diff	Base	PR	Diff	Base	PR	Diff	Base	PR	Diff
🟢	burn_private	275,233	223,523	-51,710 (-18.8%)	416	416		661,052	661,046	-6 (-0.0%)	8,894	3,815	-5,079 (-57.1%)
🟢	burn_public	223,800	185,539	-38,261 (-17.1%)	448	448		670,034	670,028	-6 (-0.0%)	8,194	3,333	-4,861 (-59.3%)
🟢	mint_to_private	341,273	268,061	-73,212 (-21.5%)	1,600	1,600		735,342	735,336	-6 (-0.0%)	9,701	4,149	-5,552 (-57.2%)
🟢	mint_to_public	223,800	185,539	-38,261 (-17.1%)	448	448		670,718	670,712	-6 (-0.0%)	8,189	3,374	-4,815 (-58.8%)
🟢	transfer_private_to_private	249,434	211,981	-37,453 (-15.0%)	832	832		499,700	499,700		8,394	3,523	-4,871 (-58.0%)
🟢	transfer_private_to_public	275,262	223,550	-51,712 (-18.8%)	416	416		659,258	659,252	-6 (-0.0%)	8,912	3,741	-5,171 (-58.0%)
🟢	transfer_public_to_private	292,558	240,913	-51,645 (-17.7%)	992	992		683,268	683,262	-6 (-0.0%)	9,137	3,834	-5,303 (-58.0%)
🟢	transfer_public_to_public	223,800	185,539	-38,261 (-17.1%)	384	384		633,285	633,279	-6 (-0.0%)	8,177	3,369	-4,808 (-58.8%)

Contract: token

🚦	Function	Gates			DA Gas			L2 Gas			Proving Time (ms)
		Base	PR	Diff	Base	PR	Diff	Base	PR	Diff	Base	PR	Diff
🟢	burn_private	303,054	250,779	-52,275 (-17.2%)	1,024	1,024		713,957	713,951	-6 (-0.0%)	9,257	3,916	-5,341 (-57.7%)
🟢	burn_public	223,800	185,539	-38,261 (-17.1%)	448	448		672,632	672,626	-6 (-0.0%)	8,164	3,364	-4,800 (-58.8%)
🟢	initialize_transfer_commitment	225,054	188,484	-36,570 (-16.2%)	768	768		474,500	474,500		8,143	3,404	-4,739 (-58.2%)
🟢	mint_to_private	355,507	281,953	-73,554 (-20.7%)	2,144	2,144		738,070	738,064	-6 (-0.0%)	9,918	4,441	-5,477 (-55.2%)
🟢	mint_to_public	223,800	185,539	-38,261 (-17.1%)	448	448		672,227	672,221	-6 (-0.0%)	8,231	3,489	-4,742 (-57.6%)
🟢	transfer_private_to_commitment	259,896	222,045	-37,851 (-14.6%)	992	992		511,400	511,400		8,522	3,651	-4,871 (-57.2%)
🟢	transfer_private_to_private	343,699	286,325	-57,374 (-16.7%)	2,592	2,592		557,600	557,600		9,731	4,318	-5,413 (-55.6%)
🟢	transfer_private_to_public	303,110	250,831	-52,279 (-17.2%)	1,024	1,024		714,023	714,017	-6 (-0.0%)	9,214	4,060	-5,154 (-55.9%)
🟢	transfer_private_to_public_with_commitment	307,280	254,753	-52,527 (-17.1%)	1,600	1,600		747,323	747,317	-6 (-0.0%)	9,230	4,148	-5,082 (-55.1%)
🟢	transfer_public_to_commitment	223,800	185,539	-38,261 (-17.1%)	576	576		662,529	662,520	-9 (-0.0%)	8,216	3,356	-4,860 (-59.2%)
🟢	transfer_public_to_private	296,520	244,762	-51,758 (-17.5%)	992	992		683,304	683,298	-6 (-0.0%)	9,241	4,026	-5,215 (-56.4%)
🟢	transfer_public_to_public	223,800	185,539	-38,261 (-17.1%)	448	448		672,548	672,542	-6 (-0.0%)	8,183	3,475	-4,708 (-57.5%)

Contract: vault

🚦	Function	Gates			DA Gas			L2 Gas			Proving Time (ms)
		Base	PR	Diff	Base	PR	Diff	Base	PR	Diff	Base	PR	Diff
🟢	deposit_private_to_private	507,983	362,767	-145,216 (-28.6%)	1,312	1,312		878,248	878,227	-21 (-0.0%)	12,101	5,331	-6,770 (-55.9%)
🟢	deposit_private_to_private_exact	611,708	471,194	-140,514 (-23.0%)	1,888	1,888		915,316	915,295	-21 (-0.0%)	13,635	7,030	-6,605 (-48.4%)
🟢	deposit_private_to_public	435,487	308,983	-126,504 (-29.0%)	768	768		862,273	862,252	-21 (-0.0%)	11,096	4,705	-6,391 (-57.6%)
🟢	deposit_public_to_private	424,931	298,960	-125,971 (-29.6%)	1,984	1,984		965,045	965,024	-21 (-0.0%)	11,039	4,850	-6,189 (-56.1%)
🟢	deposit_public_to_private_exact	424,942	301,691	-123,251 (-29.0%)	1,952	1,952		949,469	949,448	-21 (-0.0%)	11,019	4,627	-6,392 (-58.0%)
🟢	deposit_public_to_public	223,800	185,539	-38,261 (-17.1%)	832	832		897,563	897,542	-21 (-0.0%)	8,213	3,580	-4,633 (-56.4%)
🟢	issue_private_to_private_exact	611,708	471,194	-140,514 (-23.0%)	1,888	1,888		915,976	915,955	-21 (-0.0%)	13,558	5,829	-7,729 (-57.0%)
🟢	issue_private_to_public_exact	484,222	339,595	-144,627 (-29.9%)	1,344	1,344		899,998	899,977	-21 (-0.0%)	11,948	4,677	-7,271 (-60.9%)
🟢	issue_public_to_private	346,383	275,652	-70,731 (-20.4%)	1,376	1,376		921,661	921,640	-21 (-0.0%)	9,774	4,316	-5,458 (-55.8%)
🟢	issue_public_to_public	223,800	185,539	-38,261 (-17.1%)	832	832		898,253	898,232	-21 (-0.0%)	8,246	3,486	-4,760 (-57.7%)
🟢	redeem_private_to_private_exact	614,712	474,161	-140,551 (-22.9%)	1,888	1,888		915,823	915,802	-21 (-0.0%)	13,598	6,673	-6,925 (-50.9%)
🟢	redeem_private_to_public	435,430	308,930	-126,500 (-29.1%)	768	768		862,717	862,696	-21 (-0.0%)	11,092	4,962	-6,130 (-55.3%)
🟢	redeem_public_to_private_exact	428,003	304,711	-123,292 (-28.8%)	1,952	1,952		949,790	949,769	-21 (-0.0%)	11,010	4,404	-6,606 (-60.0%)
🟢	redeem_public_to_public	223,800	185,539	-38,261 (-17.1%)	832	832		898,085	898,064	-21 (-0.0%)	8,252	3,759	-4,493 (-54.4%)
🟢	withdraw_private_to_private	510,987	365,734	-145,253 (-28.4%)	1,312	1,312		878,458	878,437	-21 (-0.0%)	12,028	5,625	-6,403 (-53.2%)
🟢	withdraw_private_to_private_exact	614,712	474,161	-140,551 (-22.9%)	1,888	1,888		915,769	915,748	-21 (-0.0%)	13,754	6,621	-7,133 (-51.9%)
🟢	withdraw_private_to_public_exact	484,165	339,542	-144,623 (-29.9%)	1,344	1,344		900,232	900,211	-21 (-0.0%)	11,774	5,546	-6,228 (-52.9%)
🟢	withdraw_public_to_private	441,260	314,923	-126,337 (-28.6%)	2,528	2,528		967,356	967,335	-21 (-0.0%)	11,219	5,095	-6,124 (-54.6%)
🟢	withdraw_public_to_public	223,800	185,539	-38,261 (-17.1%)	832	832		898,388	898,367	-21 (-0.0%)	8,203	3,350	-4,853 (-59.2%)

[iAmMichaelConnor]

(Not needed for this PR, but...) this sounds like a hack?

[alejoamiras]

Yeah, agreed - it's a hack, and it was already there before this PR. aztec-nr keeps txe_oracles::get_private_events as pub(crate) (still the case on aztec-node main), so there's no public way for a contract's TXE tests to read the private events a call emitted. This PR just updated the copy's return type for rc.1.

• Opened an issue upstream asking for a public reader: [FEATURE] aztec-nr: expose get_private_events to contract tests on TXE aztec-labs-eng/aztec-node#363
• test(escrow): drop the copied TXE private-events oracle #42 drops the copy - the only test using it was checking the same event we already check in escrow.test.ts with wallet.getPrivateEvents.