git reftables

Creator

Creator

Seonglae Cho

Created

Created

2025 Oct 22 23:31

Editor

Editor

Seonglae Cho

Edited

Edited

2025 Oct 22 23:47

Refs

Refs

GitHub is migrating to use git reftables instead of packed-refs so that multi-ref updates/restacking will be O(n).

Git - reftable Documentation

Some repositories contain a lot of references (e.g. android at 866k, rails at 31k). The existing packed-refs format takes up a lot of space (e.g. 62M), and does not scale with additional references. Lookup of a single reference requires linearly scanning the file.

https://git-scm.com/docs/reftable

HIBP

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