# ethers.js v6.16.0 — ethers/v6.16.0 (2025-12-02 19:47)

- Product: ethers.js (https://whatsnew.fyi/product/ethers-js)
- Vendor: ethers
- Date: 2025-12-03
- Version: v6.16.0
- Original notes: https://github.com/ethers-io/ethers.js/releases/tag/v6.16.0
- Permalink: https://whatsnew.fyi/product/ethers-js/releases/v6.16.0

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — Utility method to split EIP-7594 blob proofs into its cells
- **changed** — Update Alchemy URL endpoint for mainnet
- **fixed** — Fail on unsupported Etherscan networks immediately to better support the default provider
- **added** — Filecoin network and Ankr endpoints
- **changed** — Moved to better API for EIP-7594 PeerDAS
- **added** — Initial EIP-7594 PeerDAS support
- **fixed** — Support RegExp engines with string length limitations
- **added** — Transaction and Signature support for non-canonical S values
- **changed** — Allow zero-width big-endian data for toBeHex and allow widths for toBeArray

- Added utility method to split EIP-7594 BLOb proofs into its cells ([88dfe96](https://github.com/ethers-io/ethers.js/commit/88dfe96cf56ad41d0a18b1ef8cac4209aa80905e)).
- Update Alchemy URL endpoint for mainnet ([#5052](https://github.com/ethers-io/ethers.js/issues/5052); [719b01d](https://github.com/ethers-io/ethers.js/commit/719b01d72dad7525d3837a561fa1c803a773b44e)).
- Fail on unsupported Etherscan networks immediately to better support the default provider ([94b333b](https://github.com/ethers-io/ethers.js/commit/94b333b982a5c4ecb74d10c2bdf0ff23584c37fa)).
- Added Filecoin network and Ankr endpoints ([#5038](https://github.com/ethers-io/ethers.js/issues/5038); [986e827](https://github.com/ethers-io/ethers.js/commit/986e8272270fa7394a0acd0c15b3bf407dbc1fc4)).
- Moved to better API for EIP-7594 PeerDAS ([#5062](https://github.com/ethers-io/ethers.js/issues/5062); [452b422](https://github.com/ethers-io/ethers.js/commit/452b4227a4587a514ff83dc8a591eb02a0ba2d56)).
- Added initial EIP-7594 PeerDAS support ([#5054](https://github.com/ethers-io/ethers.js/issues/5054), [#5062](https://github.com/ethers-io/ethers.js/issues/5062); [6d64889](https://github.com/ethers-io/ethers.js/commit/6d64889388824823369cd95193fbc857bc0ee15c)).
- Support RegExp engines with string length limitations ([#4967](https://github.com/ethers-io/ethers.js/issues/4967); [f0dfbe1](https://github.com/ethers-io/ethers.js/commit/f0dfbe1c35128d581d95cbf81637c438d7bee00a)).
- Added Transaction and Signature support for non-canonical S values ([#4223](https://github.com/ethers-io/ethers.js/issues/4223), [#5013](https://github.com/ethers-io/ethers.js/issues/5013); [855d727](https://github.com/ethers-io/ethers.js/commit/855d72728aaa1cc0ec427f56ab7929daead0b253)).
- Allow zero-width big-endian data for toBeHex and allow widths fo toBeArray ([#5025](https://github.com/ethers-io/ethers.js/issues/5025); [540f30c](https://github.com/ethers-io/ethers.js/commit/540f30cbec0e745df1a38d51286f2c6326829581)).