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OCaml 5.5 Summary: What's New in the Latest OCaml Update

What's new in OCaml's latest 5.5 update? New features, performance improvements, and bug fixes.

23 Jun 2026

Tarides

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Weeknotes 2026 week 24-25

22 Jun 2026

Jon Ludlam's Blog at recoil.org

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.plan-26-25: Planetary scale plans, Windows file-descriptor scale problems

Ten years of the CCI with Sir David Attenborough, Andrew's Royal Society Environment Medal lecture, and the third PROPL at PLDI, while wrapping a local DeepSeek agent in OCaml and a first stab at getting Eio fleshed out on Windows.

21 Jun 2026

Anil Madhavapeddy's Blog

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A proof-of-work puzzle

This post explores two more sustainable solutions to the crawler bots issue affecting opam-repo-ci

18 Jun 2026

Marc Elvers

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Scraping opam-repo-ci to a standstill

Jan reported that opam-repo-ci, opam.ci.ocaml.org, had become unresponsive.

16 Jun 2026

Marc Elvers

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Docker 29 manifest list

On the base image builder, we have recently seen a significant increase in the number of times we hit the Docker rate limits on manifest pushes. Most of these work on the second attempt, but this week, a new class of permanent manifest push failures has emerged.

16 Jun 2026

Marc Elvers

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