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@dependabot dependabot bot commented on behalf of github Nov 16, 2025

Bumps js-yaml to 4.1.1 and updates ancestor dependency hardhat. These dependencies need to be updated together.

Updates js-yaml from 3.13.1 to 4.1.1

Changelog

Sourced from js-yaml's changelog.

[4.1.1] - 2025-11-12

Security

  • Fix prototype pollution issue in yaml merge (<<) operator.

[4.1.0] - 2021-04-15

Added

  • Types are now exported as yaml.types.XXX.
  • Every type now has options property with original arguments kept as they were (see yaml.types.int.options as an example).

Changed

  • Schema.extend() now keeps old type order in case of conflicts (e.g. Schema.extend([ a, b, c ]).extend([ b, a, d ]) is now ordered as abcd instead of cbad).

[4.0.0] - 2021-01-03

Changed

  • Check migration guide to see details for all breaking changes.
  • Breaking: "unsafe" tags !!js/function, !!js/regexp, !!js/undefined are moved to js-yaml-js-types package.
  • Breaking: removed safe* functions. Use load, loadAll, dump instead which are all now safe by default.
  • yaml.DEFAULT_SAFE_SCHEMA and yaml.DEFAULT_FULL_SCHEMA are removed, use yaml.DEFAULT_SCHEMA instead.
  • yaml.Schema.create(schema, tags) is removed, use schema.extend(tags) instead.
  • !!binary now always mapped to Uint8Array on load.
  • Reduced nesting of /lib folder.
  • Parse numbers according to YAML 1.2 instead of YAML 1.1 (01234 is now decimal, 0o1234 is octal, 1:23 is parsed as string instead of base60).
  • dump() no longer quotes :, [, ], (, ) except when necessary, #470, #557.
  • Line and column in exceptions are now formatted as (X:Y) instead of at line X, column Y (also present in compact format), #332.
  • Code snippet created in exceptions now contains multiple lines with line numbers.
  • dump() now serializes undefined as null in collections and removes keys with undefined in mappings, #571.
  • dump() with skipInvalid=true now serializes invalid items in collections as null.
  • Custom tags starting with ! are now dumped as !tag instead of !<!tag>, #576.
  • Custom tags starting with tag:yaml.org,2002: are now shorthanded using !!, #258.

Added

  • Added .mjs (es modules) support.
  • Added quotingType and forceQuotes options for dumper to configure string literal style, #290, #529.
  • Added styles: { '!!null': 'empty' } option for dumper (serializes { foo: null } as "foo: "), #570.
  • Added replacer option (similar to option in JSON.stringify), #339.
  • Custom Tag can now handle all tags or multiple tags with the same prefix, #385.

Fixed

... (truncated)

Commits

Updates hardhat from 2.2.1 to 2.27.0

Release notes

Sourced from hardhat's releases.

Hardhat v2.27.0

This release integrates the latest EDR (version 0.12.0-next.7) into Hardhat 2.

Changes

  • 57c509d: Upgraded EDR to v0.12.0-next.7:
  • 57c509d: Removed support for pre-Byzantium root field from RPC receipts

💡 The Nomic Foundation is hiring! Check our open positions.


Hardhat v2.26.5

This release is a small bug fix to improve compilation in the presence of a malformed solidity-files-cache.

Changes

  • f886268: Ignore malformed solidity-files-cache so compilation keeps running while logging the issue in debug, thanks @​iosh (#6489)

💡 The Nomic Foundation is hiring! Check our open positions.


v2.26.4

This is a small release that includes solc version support for 0.8.30 along with other bug fixes.

Changes

  • e5ff273: Fix to be explicit that execFile should pass stdout/stderr as strings (#7333)
  • 5655ebb: Update latest supported solc version to 0.8.30 (#7365)
  • 9d10226: Links in the code and READMEs updated to point to the Hardhat 2 documentation and resources

💡 The Nomic Foundation is hiring! Check our open positions.


Changelog

Sourced from hardhat's changelog.

hardhat

3.0.15

Patch Changes

  • 9fb054a: Fix the initialization of the Mocha and Ethers sample project when using pnpm

3.0.14

Patch Changes

  • 3d42a6f: Remove the compilation spinner when the compilation fails
  • 52e1eb4: Fix the test solidity task's compilation process
  • ce5c22a: Fail when a file isn't built neither as contract nor test

3.0.13

Patch Changes

  • 6e4ad6d: Fixed unexpected test failure when running in isolate/gas stats mode (#1146)
  • 6e4ad6d: Added latest dynamic base fee parameters to Base Mainnet chain config (#1141)

3.0.12

Patch Changes

  • 147f8a6: Improved the look and feel of compilation output (#7669)
  • 50ce3e0: Fix a bug that could lead to different builds having the same build id. Note that this version will change how every build id is computed.
  • 31f0b03: Don't compile solidity tests files when not needed (#7669)
  • a77c06a: Added a new minimal sample project

3.0.11

Patch Changes

  • a4733f6: Add defineConfig in hardhat/config
  • 52d9902: Fix package manager detection
  • d45234d: Fixed Etherscan verification failures by removing hardcoded v1 API URLs from chain descriptors (#7623). Also enhanced config resolution to support partial overrides in block explorer configurations for future extensibility.

3.0.10

Patch Changes

  • fe28daf: Added support for showing gas statistics after running tests (#7472 and #7503)
  • 1ab6b75: Optimism ISTHMUS hardfork support added to Hardhat (#7517)
  • 5e64246: Improved JS/TS test tasks to not compile Solidity tests (#7626)
  • 217a1a8: Fix arbitrum sepolia chain id in chain descriptors (thanks @​aelmanaa!)
  • 8a03bd0: Fixed gas calculation for EIP-7702 refunds (#7606)
  • 8a03bd0: Make all parameters of eth_feeHistory rpc call required (#7606)

... (truncated)

Commits
Maintainer changes

This version was pushed to npm by [GitHub Actions](https://www.npmjs.com/~GitHub Actions), a new releaser for hardhat since your current version.


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Bumps [js-yaml](https://github.com/nodeca/js-yaml) to 4.1.1 and updates ancestor dependency [hardhat](https://github.com/NomicFoundation/hardhat/tree/HEAD/v-next/hardhat). These dependencies need to be updated together.


Updates `js-yaml` from 3.13.1 to 4.1.1
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](nodeca/js-yaml@3.13.1...4.1.1)

Updates `hardhat` from 2.2.1 to 2.27.0
- [Release notes](https://github.com/NomicFoundation/hardhat/releases)
- [Changelog](https://github.com/NomicFoundation/hardhat/blob/main/v-next/hardhat/CHANGELOG.md)
- [Commits](https://github.com/NomicFoundation/hardhat/commits/hardhat@2.27.0/v-next/hardhat)

---
updated-dependencies:
- dependency-name: js-yaml
  dependency-version: 4.1.1
  dependency-type: indirect
- dependency-name: hardhat
  dependency-version: 2.27.0
  dependency-type: direct:development
...

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@dependabot dependabot bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels Nov 16, 2025
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