Download Latest Version kubo_v0.40.1_darwin-amd64.tar.gz (42.8 MB)
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kubo_v0.40.1_windows-arm64.zip.cid 2026-02-27 47 Bytes
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kubo_v0.40.1_windows-arm64.zip.sha512 2026-02-27 161 Bytes
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kubo_v0.40.1_windows-arm64.zip 2026-02-27 37.0 MB
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kubo_v0.40.1_windows-amd64.zip.cid 2026-02-27 47 Bytes
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kubo_v0.40.1_windows-amd64.zip.sha512 2026-02-27 161 Bytes
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kubo_v0.40.1_windows-amd64.zip 2026-02-27 40.5 MB
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kubo_v0.40.1_openbsd-amd64.tar.gz.cid 2026-02-27 47 Bytes
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kubo_v0.40.1_openbsd-amd64.tar.gz.sha512 2026-02-27 164 Bytes
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kubo_v0.40.1_openbsd-amd64.tar.gz 2026-02-27 40.1 MB
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kubo_v0.40.1_linux-riscv64.tar.gz.cid 2026-02-27 47 Bytes
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kubo_v0.40.1_linux-riscv64.tar.gz.sha512 2026-02-27 164 Bytes
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kubo_v0.40.1_linux-riscv64.tar.gz 2026-02-27 38.6 MB
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kubo_v0.40.1_linux-arm64.tar.gz.cid 2026-02-27 47 Bytes
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kubo_v0.40.1_linux-arm64.tar.gz.sha512 2026-02-27 162 Bytes
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kubo_v0.40.1_linux-arm64.tar.gz 2026-02-27 37.3 MB
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kubo_v0.40.1_linux-amd64.tar.gz.cid 2026-02-27 47 Bytes
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kubo_v0.40.1_linux-amd64.tar.gz.sha512 2026-02-27 162 Bytes
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kubo_v0.40.1_linux-amd64.tar.gz 2026-02-27 53.4 MB
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kubo_v0.40.1_freebsd-amd64.tar.gz.cid 2026-02-27 47 Bytes
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kubo_v0.40.1_freebsd-amd64.tar.gz.sha512 2026-02-27 164 Bytes
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kubo_v0.40.1_freebsd-amd64.tar.gz 2026-02-27 40.4 MB
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kubo_v0.40.1_darwin-arm64.tar.gz.cid 2026-02-27 47 Bytes
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kubo_v0.40.1_darwin-arm64.tar.gz.sha512 2026-02-27 163 Bytes
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kubo_v0.40.1_darwin-arm64.tar.gz 2026-02-27 39.7 MB
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kubo_v0.40.1_darwin-amd64.tar.gz.cid 2026-02-27 47 Bytes
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kubo_v0.40.1_darwin-amd64.tar.gz.sha512 2026-02-27 163 Bytes
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kubo_v0.40.1_darwin-amd64.tar.gz 2026-02-27 42.8 MB
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kubo-source.tar.gz.cid 2026-02-27 47 Bytes
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kubo-source.tar.gz.sha512 2026-02-27 149 Bytes
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kubo-source.tar.gz 2026-02-27 19.1 MB
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README.md 2026-02-27 1.7 kB
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v0.40.1 source code.tar.gz 2026-02-27 4.4 MB
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v0.40.1 source code.zip 2026-02-27 4.8 MB
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Totals: 33 Items   398.2 MB 0

[!NOTE] This patch release was brought to you by the Shipyard team.

This is a Windows bugfix release. If you use Linux or macOS v0.40.0 should be fine.

🚒 Bugfix for Windows

If you run Kubo on Windows, v0.40.0 can crash after running for a while. The daemon starts fine and works normally at first, but eventually hits a memory corruption in Go's network I/O layer and dies. This is likely caused by an upstream Go 1.26 regression in overlapped I/O handling that has known issues (go#77142, #11214).

This patch release downgrades the Go toolchain from 1.26 to 1.25, which does not have this bug. If you are running Kubo on Windows, upgrade to v0.40.1. We will switch back to Go 1.26.x once the upstream fix lands.

📝 Changelog

Full Changelog v0.40.1 - github.com/ipfs/kubo: - chore: downgrade to Go 1.25 to fix Windows crash ([[ipfs/kubo#11215](https://github.com/ipfs/kubo/issues/11215)](https://github.com/ipfs/kubo/pull/11215))

See v0.40.0 for full list of changes since v0.39.x.

Source: README.md, updated 2026-02-27