Git 3.0's upcoming SHA-256 default will be a costly mistake
I've been sitting on this for a few years, mostly because there are smarter people who have been concentrating on this and I don't love being a back seat driver. However, I think that the Git 3.0 release is about to cost everyone a lot of time and angst for little benefit, and virtually nobody knows what's coming. So grab some popcorn and let me tell you a tale of how one of the new upcoming Git 3.0 breaking changes is about to be a huge, costly, global train wreck of a change for almost no practical value.
- ▪I've been sitting on this for a few years, mostly because there are smarter people who have been concentrating on this and I don't love being a back seat driver.
- ▪However, I think that the Git 3.0 release is about to cost everyone a lot of time and angst for little benefit, and virtually nobody knows what's coming.
- ▪So grab some popcorn and let me tell you a tale of how one of the new upcoming Git 3.0 breaking changes is about to be a huge, costly, global train wreck of a change for almost no practical value.
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Record
| Original publisher | Butler's Log |
| Canonical URL | https://blog.gitbutler.com/git-3-sha-256 |
| Publication time | Thu, 01 Oct 2026 16:57:03 +0000 |
| Retrieval time | 2026-10-01T17:22:32.064Z |
| Last seen | 2026-10-01T17:22:32.064Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | x_gesF2qRWTv · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
{"@context":"https://schema.org","@type":"BlogPosting","headline":"Git 3.0's upcoming SHA-256 default will be a costly mistake","description":"Git 3.0 will make SHA-256 the new default content hashing algorithm and it will be an incomprehensibly expensive and ultimately valueless and avoidable global nightmare.","image":"https://gitbutler-docs-images-public.s3.us-east-1.amazonaws.com/git-3-sha-256.webp","author":{"@type":"Person","name":"Scott…
Excerpt limited to ~120 words for fair-use compliance. The full article is at Butler's Log.
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