chore(noir): Release 0.4.0

[kevaundray]

🤖 I have created a release beep boop

0.4.0 (2023-04-17)

⚠ BREAKING CHANGES

• remove outdated arkworks backend (#1151)
• nargo: define preprocessed artifacts for programs/contracts (#1126)
• nargo: use faster hash function for checking preprocessed keys (#1094)
• Fix returning of structs in ACIR (#1058)
• upgrade to acvm 0.8.0 (#1047)

Features

• Add new Vec type to frontend (#1103) (e125157)
• Add storage slots to globals (#1019) (4190e11)
• Allow arbitrary noir functions to be unconstrained (#1044) (ebc8a36)
• Allow non-comptime field indices in unconstrained functions (#1053) (bc52612)
• Allow numeric generics to be referenced and add map (#997) (34eab32)
• Allow secret functions to use public parameters (#1051) (12c0668)
• Allow structs and arrays as globals (#1054) (dadbd3c)
• Changes serialization for contract functions (#1056) (41e0020)
• compiler: Allows specify entry_point source (#1026) (9789f89)
• dynamic array indexing (#886) (aba1ed2)
• Implement 'open' and 'unconstrained' keywords (#1037) (5a66dec)
• Implement std::unsafe::zeroed (#1048) (9a43f85)
• Implement arrays of structs (#1068) (f607150)
• import core logic in cli from nargo crate (#1142) (753a272)
• make noirc_driver aware of contracts (#999) (c21afca)
• Merge all contracts into one ABI (#1033) (473428c)
• nargo: add InvalidPackageError and DependencyResolutionError error types. (#1007) (1e6761b)
• nargo: add skeleton of composite types in template input tomls (#1104) (1fb2756)
• nargo: add test to example noir program (#1039) (f994c4f)
• nargo: allow running nargo from any directory in package (#1010) (761fdb5)
• nargo: define preprocessed artifacts for programs/contracts (#1126) (7528f59)
• nargo: print-acir command (#1031) (408d9c0)
• nargo: remove misleading quotes in generated Prover.toml (#1087) (57c817f)
• nargo: split nargo into core and cli packages (#1065) (7c388f9)
• read-only array (#899) (2e38ab0)
• stdlib: Implement Poseidon hash (#768) (779ab66)

Bug Fixes

• Avoid asserting in typechecker if struct field count is not correct (#1036) (b3d1d7f), closes #1028
• compiler identifying imported functions as being part of a contract (#1112) (61c38d2)
• correct name in CLI output from nargo_cli to nargo (74d7369)
• correct test for mutually exclusive feature flags (#1085) (eb5c917)
• crash when typechecking fields that don't exist (#1070) (a67e8c5)
• Fix returning of structs in ACIR (#1058) (91bd471)
• nargo: correct logic for rejecting transitive local dependencies (#1015) (e2b8b65)
• nargo: correct name in CLI output from nargo_cli to nargo (#1095) (74d7369)
• nargo: give contract artifacts unique names to prevent overwrites (#1158) (1227b2c)
• nargo: only search for Nargo.toml in commands which act on a Nargo package (#1029) (6e642b9)
• nargo: resolve local dependencies relative to root of depending package (38bf571)
• Numeric generics with impls error (#1148) (5d6e4d0)
• rationalise witness for constant values (#984) (ab32365)
• Resolve globals in types (#1043) (2badf14)

Miscellaneous Chores

• nargo: use faster hash function for checking preprocessed keys (#1094) (a69758c)
• remove outdated arkworks backend (#1151) (bc8ed9a)
• upgrade to acvm 0.8.0 (#1047) (63f958b)

---

This PR was generated with Release Please. See documentation.

[TomAFrench]

nargo: Set current dir to package root before executing commands (#1034) (38bf571)

Before releasing we need to update this release note as it's not accurate.

[phated]

@TomAFrench Did you ever make the change? We might want to use this: https://github.com/googleapis/release-please#how-can-i-fix-release-notes and re-run the tool

[TomAFrench]

@TomAFrench Did you ever make the change? We might want to use this: https://github.com/googleapis/release-please#how-can-i-fix-release-notes and re-run the tool

I looked at that and wasn't clear on the expected usage. i.e. by "edit the body of the merged pull requests" does it mean editting the top comment of the PR?

I haven't made this change yet.

[phated]

Yeah, I believe it means editing the first comment of the PR.

[TomAFrench]

Cool, looks like the changelog's been updated correctly.

[TomAFrench]

I think we're gtg on this release now right?

[kevaundray]

🤖 Release is at https://github.com/noir-lang/noir/releases/tag/v0.4.0 🌻