Release 0.40

[lidel]

Note

Part of ongoing maintenance of key libraries and services ipshipyard/roadmaps#1 and ipshipyard/roadmaps#6

Meta

• Release owner: @lidel
• Release reviewer/backup: @gammazero
• Expected RC1 date: TBD
• 🚢 Expected final release date: TBD
• Release PR: TBD
• Accompanying PR for improving the release process: TBD
• Internal Staging tests by Shipyard: TBD
• Changelog: https://github.com/ipfs/kubo/blob/master/docs/changelogs/v0.40.md

Items In Scope

Required

• test: IPIP-523 format query precedence over Accept header #11086
• IPIP-476 feat: support GetClosesPeers (IPIP-476) and ExposeRoutingAPI by default #10954 + 179e1f8
• IPIP-499 Implement modern CID profile from IPIP-499 #11071
• feat(client/rpc): add provide stat and dag import support #11069
• chore: remove deprecated go-ipfs Docker image publishing #11081
• (potential bug or ux bug): investigate 1 region problem when sweep+accelerated client are enabled (internal)

Nice To Have (Optional)

Bugs

• DHT Sweep only sees 1 Region when Accelerated Client is enabled #11085
• MFS bug: ipfs files rm hanging #10842
• denylist: ?format=car does not skip directly blocked CIDs #10361

UX/DX Improvements

• feat(gateway): add default landing page when RootRedirect is not set #11091
• Improved Reprovider.Strategy for entity DAGs (HAMT/UnixFS dirs, big files) #8676
• Windows: redirect to *.ipfs.localhost fails in non-browser contexts #11024 (needs boxo fix for boxo#1054)
• ipfs get --compress gives incorrect Header #2376 (tbd if we fix or descope)
• ERROR from webrtc-transport-pion Failed to accept data channel #11053 (needs go-libp2p release with this PR)
• Move ipfs routing provide and reprovide into ipfs provide namespace #10865 (keep old cmds as deprecated)
• Add CLI timeout for retrieval/resolution #10953
• ipfs routing get should allow querying when node is offline by enabling a flag #10958
• feat(cmds): files: add new-root command to change the MFS root #8648 (also fix for Ipfs daemon hangs when MFS root is not available locally #7183)
• refactor: support percent-encoded /unix paths #10833

Denylist / Content Filtering

• Support consuming https://badbits.dwebops.pub/badbits.deny rainbow#126 (same applies to Kubo)
  • fix(gateway): prevent blocked CIDs in CAR responses #10948
    • ipfs blockservice is incompatible with sessions ipfs-shipyard/nopfs#34 (re-triage once kubo#10948 is done)
  • HTTPSubscriber: check with If-None-Match or If-Modified-Since ipfs-shipyard/nopfs#38
  • HTTPSubscriber: detect when list is not append-only ipfs-shipyard/nopfs#39
• TBD: consider porting URLhaus from feat: add IP denylist plugin for abuse prevention ipshipyard/p2p-forge#79 for phishing prevention
• Blocks are only sanity checked when debug mode is active #1152

Dependencies / Infrastructure

• Rewrite batch mode to use temp directory (#136) go-ds-flatfs#142
• chore: golangci/v2 with go 1.25 support #10924
• Update pubsub and add default validator #9684 (status/blocked)
• fix(mdns): filter addresses to reduce packet size libp2p/go-libp2p#3434

TBD (Things we need to re-triage)

• provider: duplicated CIDs sent to provide queue boxo#901 (TBD)
• ipfswatch: fix loading datastore plugins #11078