ckb 0.206.0 (2c91814 2026-05-06)

[doitian]

Highlights

This is a maintenance release focused on dependency upgrades, security patches, and a fix in the rich-indexer. There are no consensus or protocol changes.

• Rich-indexer fix: Corrected prefix-search upper-bound calculation so that leading zero bytes are preserved and all-0xFF prefixes no longer overflow, ensuring complete and accurate query results (#5166).
• Security updates: Multiple rustls-webpki bumps (up to 0.103.13) and a thin-vec bump address advisories surfaced by cargo audit (#5182, #5186, #5170, #5154). make security-audit is green again after updating keccak to 0.1.6 (#5158).
• Updated testnet bootnodes for improved peer discovery on the Pudge testnet (#5176).
• New documentation: A guide for running a dev chain from existing data (#5125) and a refreshed platform-support page (#5142).

Upgrading from v0.205.0 is recommended for all node operators to pick up the security fixes and the rich-indexer correctness fix. No migration or reindex is required.

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: 0x89670f609956f08e46bba05b1cd13675578cf2397e5d7eb22f6689f5000996c8
• Testnet: 0xff760ab51618978772f005240db3a1db275cb0365421fc2bc77e342b5f310b3a

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	VC++ Redistributable	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 v0.205.0

Compare changes in GitHub

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This discussion was created from the release ckb 0.206.0 (2c91814 2026-05-06).