ckb 0.209.0 (d166e28 2026-07-29)

Highlights

This is a regular minor release.

Compatibility Table

Network	Consensus Version	Minimal CKB Version
dev	ckb2023 since epoch 0
preview	ckb2023 since epoch 0	v0.119.0
testnet	ckb2023 since epoch 9,690	v0.119.0
mainnet	ckb2023 since epoch 12,293	v0.200.0

See how to connect to various chains in Wiki.

Default assume valid target

• Mainnet: 0xd81931b857abe0521203372f0175ef692aab344865b5563e1e287ff46aaa09f6
• Testnet: 0x4ec3242ee50da3ef5f7a03dde9ae2b69fe11e75be020c2bc2184231ab426c1b1

Downloads

OS	Arch	Runtime Dependencies	Package	Sign
macOS	x64	macOS 10.15 or above	zip	PGP
macOS (Portable)	x64	macOS 10.15 or above	zip	PGP
macOS	ARM64	macOS 10.15 or above	zip	PGP
macOS (Portable)	ARM64	macOS 10.15 or above	zip	PGP
Linux	x64	glibc, libstdc++	tarball	PGP
Linux (Portable)	x64	glibc, libstdc++	tarball	PGP
CentOS	x64	glibc, libstdc++	tarball	PGP
CentOS (Portable)	x64	glibc, libstdc++	tarball	PGP
Windows	x64		zip	PGP
Linux	ARM64	glibc, libstdc++	tarball	PGP
Docker			dockerhub

Deprecation Notice: CentOS has reached its EOL, we will stop providing CentOS binaries in the future. Please use other platforms or build from source.

The .asc files are signatures. It is wise and more secure to check out for the files integrity.

Try the portable variants if the binaries complains about illegal instructions.

Changes since v0.208.0

Compare changes in GitHub

Changed

• replace torut with a manual Tor implementation and improve connection-loss detection (#5271, #5168) (by @jetjinser)
• simplify header-sync ETA logs (#5280) (by @janx)
• update the CKB release signing key (#5278) (by @eval-exec)

Fixed

• prevent unbounded logger and relay-queue memory growth (#5292) (by @chenyukang)
• fix stale-parent handling during tx-pool ancestor eviction (#5293) (by @chenyukang)
• correct the jemalloc profiling-dump FFI (#5291) (by @eval-exec)
• add bearer-token authentication for miner notify mode (#5257) (by @zhangsoledad)
• harden the Docker image workflow against tag-name command injection (#5246) (by @chenyukang)

Contributors

• @chenyukang
• @eval-exec
• @jetjinser
• @janx
• @zhangsoledad