Bitcoin Core v0.20.1 (Bitcoin-QT): Download for Windows/Linux/Mac

Bitcoin Core – is a free software project for the community released under the MIT license and open source.

Bitcoin Core requires a one-time download of about 300 GB of data, plus another 5-10 GB per month. By default, you will need to store all of this data, but if you enable shrinking, you can only store 6 GB without compromising security. For more information on setting up Bitcoin Core, please read the complete node guide.

Download Bitcoin Core v0.20.1

Changes v0.20.1:

Mining

  • #19019 Fix GBT: Restore “!segwit” and “csv” to “rules” key (luke-jr)

P2P protocol and network code

  • #19219 Replace automatic bans with discouragement filter (sipa)

Wallet

  • #19300 Handle concurrent wallet loading (promag)
  • #18982 Minimal fix to restore conflicted transaction notifications (ryanofsky)

RPC and other APIs

  • #19524 Increment input value sum only once per UTXO in decodepsbt (fanquake)
  • #19517 psbt: Increment input value sum only once per UTXO in decodepsbt (achow101)
  • #19215 psbt: Include and allow both non_witness_utxo and witness_utxo for segwit inputs (achow101)

GUI

  • #19097 Add missing QPainterPath include (achow101)
  • #19059 update Qt base translations for macOS release (fanquake)

Build system

  • #19152 improve build OS configure output (skmcontrib)
  • #19536 qt, build: Fix QFileDialog for static builds (hebasto)

Tests and QA

  • #19444 Remove cached directories and associated script blocks from appveyor config (sipsorcery)
  • #18640 appveyor: Remove clcache (MarcoFalke)

Miscellaneous

  • #19194 util: Don’t reference errno when pthread fails (miztake)
  • #18700 Fix locking on WSL using flock instead of fcntl (meshcollider)

Bitcoin

Bitcoin is a cryptocurrency invented in 2008 by an unknown person or group of people named Satoshi Nakamoto and launched in 2009 when its implementation was released as open source software.

Bitcoin is a cryptocurrency invented in 2008 by an unknown person or group of people named Satoshi Nakamoto and launched in 2009 when its implementation was released as open source software.

Bitcoin has received high praise and criticism. Critics have noted its use in illegal transactions, the large amount of electricity used by miners, price volatility and theft from exchanges. Some economists, including several Nobel laureates, have described it as a speculative bubble. Bitcoin has also been used as an investment, although several regulators have issued investor warnings about Bitcoin.