# Kubo 0.40.0 adds reproducible CID Profiles, import cleanup, diagnostics, and gateway improvements

DevFeed: [Kubo 0.40.0 adds reproducible CID Profiles, import cleanup, diagnostics, and gateway improvements](<https://devfeed.tech/articles/just-released-kubo-0-40-0-35640.md>)

Original publisher: [Read original article](<https://github.com/ipfs/kubo/releases/tag/v0.40.0>)

Author: Ipfs

Published: 2026-02-25T00:00:00Z

Content type: release

Language: en

Sources: [IPFS](<https://devfeed.tech/sources/ipfs.md>)

Topics: [Software](<https://devfeed.tech/topics/software.md>), [sharding](<https://devfeed.tech/topics/sharding.md>), [Go Language](<https://devfeed.tech/topics/go-language.md>), [configuration](<https://devfeed.tech/topics/configuration.md>)

Tags: [gc](<https://devfeed.tech/tags/gc.md>), [go](<https://devfeed.tech/tags/go.md>), [memory](<https://devfeed.tech/tags/memory.md>), [release](<https://devfeed.tech/tags/release.md>), [release-notes](<https://devfeed.tech/tags/release-notes.md>), [sharding](<https://devfeed.tech/tags/sharding.md>)

## AI overview

Kubo 0.40.0 introduces reproducible file imports through CID Profiles, automatic cleanup of interrupted flatfs operations, improved connectivity diagnostics and gateway behavior, and reduced memory usage and garbage-collection overhead through its Go 1.26 toolchain.

## Source excerpt

Just released: Kubo 0.40.0!