Skip to main content

Changelog

Release history for Bitcoin Knots.

Version 29.3.knots20260508​

Released: May 2026 (current release)

Based on Bitcoin Core 29.3.

Highlights​

  • BIP-110/RDTS support: This build enforces the Reduced Data Temporary Softfork on its deployment schedule and asks for explicit confirmation — via a GUI prompt at startup or consensusrules=rdts in bitcoin.conf (bitcoind warns hourly until confirmed). A build without RDTS enforcement (29.3.knots20260507) is also available. See BIP-110 / RDTS Integration.
  • RAM-aware dbcache default: When -dbcache is not set explicitly, Knots now auto-selects a value between 100 MiB and 2 GiB based on system memory (#34641)
  • sweepprivkeys extended: now also finds segwit (p2wpkh) and taproot (p2tr) UTXOs, in addition to p2pk and p2pkh (knots#296)
  • "Sweep private key" GUI dialog added to the File menu (knots#297)
  • Sub-dust fee penalty: transactions creating sub-dust outputs have their effective fee reduced accordingly; enabled by default, disable with subdustfeepenalty=0 (knots#272)
  • Datacarrier filter hardening: datacarrier policy options now match a newer spam variation ("opnet") designed to bypass the prior implementation (knots#292)
  • Tor hidden-service PoW defenses enabled for automatically created hidden services, when the Tor daemon supports them (#33414)
  • maxmempool RPC to adjust the mempool memory limit at runtime

Changes​

Consensus​

  • knots#238: Reduced Data Temporary Softfork (RDTS), implemented as a modified BIP9 temporary deployment (confirmation required; non-RDTS build published in parallel)

Policy​

  • knots#272: Penalize effective fee for sub-dust outputs
  • knots#292: Add 'opnet' to datacarriersize matching

P2P and Network​

  • #33414: Enable PoW defenses for automatically created Tor hidden services
  • #35087: Limit torcontrol line size to prevent OOM
  • #35116 / #35117: Clean up SOCKS5 and I2P error logging

GUI​

  • knots#256: Prompt user after upgrading to RDTS-enabled version
  • knots#297: Add sweep private key dialog
  • knots#287: Warn when script threads exceed CPU cores
  • knots#288: Expand sync progress bar in status bar

Wallet​

  • #34870: Fix feebumper crash when combined bump fee is unavailable
  • #34959: Enforce BDB btree levels and overflow item sizes
  • knots#266: Validate external signer fingerprint is hex before shell command use
  • knots#267: Codex32: prevent out-of-bounds read on validation error

RPC​

  • knots#296: Add segwit and taproot support to sweepprivkeys
  • knots#294: Fix unsigned underflow in GetBlockFileInfo bounds check

See the official release notes for the full change log.

Version 29.3.knots20260507​

Released: May 8, 2026

Identical to 29.3.knots20260508, except it does not support the BIP-110/RDTS network upgrade. Provided for users who are not ready to adopt RDTS.

Version 29.3.knots20260210​

Released: February 10, 2026

Based on Bitcoin Core 29.3.

Highlights​

  • Numerous wallet bug fixes, including some obscure scenarios that could delete the wallet (migration issues, backup path handling, and crashes when wallet directories lack write permissions)
  • P2P stability fixes, including a use-after-free in the v2-to-v1 reconnection logic
  • Qt updated to 5.15.18

Version 29.2.knots20251110​

Released: November 10, 2025

Highlights​

  • Fixed CVE-2025-46598 (low severity service degradation)
  • Increased default datacarriersize to 83 bytes
  • Memory pressure detection disabled by default

Changes​

Consensus​

  • #32473: Introduce per-txin sighash midstate cache

Policy​

  • Default datacarriersize increased to 83 bytes

P2P and Network​

  • #33050: Don't punish peers for consensus-invalid txs
  • #33105: Detect witness stripping without re-running Script checks
  • #33738: Avoid GetHash() work when logging is disabled
  • #33813: Warning for ignored rpcbind argument

GUI​

  • #8501: MempoolStats uses min relay fee when mempool empty
  • gui#901: Add createwallet to history filter

Wallet​

  • #31514: Disallow label for ranged descriptors

Block and Transaction​

  • #19873: Memory pressure detection disabled by default

Credits​

Thanks to all contributors including:

  • Ataraxia
  • /dev/fd0
  • Anthony Towns
  • Antoine Poinsot
  • Luke Dashjr
  • And others

Version 29.2.knots20251010​

Released: October 10, 2025

Based on Bitcoin Core 29.2.

Highlights​

  • Various bug fixes and a new Dockerfile (see contrib/docker)
  • Discontinued advertising the NODE_REPLACE_BY_FEE service bit
  • Tor control improvements, including ephemeral config files
  • Improved NAT-PMP/PCP logging and connection handling
  • Wallet migration fixes and improved macOS icon rendering

Version 29.1.knots20250903​

Released: September 3, 2025

Highlights​

  • CMake build system migration (replaces Autotools)
  • NAT-PMP enabled by default
  • Ephemeral anchor support (-permitephemeral)
  • Software expiry warnings for node updates

Changes​

Build System​

  • Migrated from Autotools to CMake (minimum CMake 3.22)
  • Improved cross-compilation support

Policy​

  • Added ephemeral anchor output support
  • New -permitephemeral option for configuring ephemeral outputs

Networking​

  • NAT-PMP now enabled by default for easier connectivity
  • Improved peer identification for LibreRelay and Utreexo nodes

GUI​

  • Enhanced mempool statistics display
  • Improved dark mode consistency

Version 28.1.knots20250305​

Released: March 5, 2025

Highlights​

  • Based on Bitcoin Core 28.1
  • Enhanced transaction filtering options
  • Improved BIP-322 message signing

Version 27.1.knots20240801​

Released: August 1, 2024

Highlights​

  • Long-term support release
  • Stable foundation for production deployments
  • Full legacy wallet support maintained

Release Schedule​

Bitcoin Knots releases typically follow Bitcoin Core releases with additional patches and fixes.

See Also​