Inside Bitcoin
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Inside Bitcoin
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The code behind the network, with room to understand it.
Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.
1Bitcoin Core version *0.14.3* is now available from:3<https://bitcoin.org/bin/bitcoin-core-0.14.3/>5This is a new minor version release, including various bugfixes and6performance improvements.8Please report bugs using the issue tracker at github:10<https://github.com/bitcoin/bitcoin/issues>12To receive security and update notifications, please subscribe to:14<https://bitcoincore.org/en/list/announcements/join/>16Compatibility17==============19Bitcoin Core is extensively tested on multiple operating systems using20the Linux kernel, macOS 10.8+, and Windows Vista and later.22Microsoft ended support for Windows XP on [April 8th, 2014](https://www.microsoft.com/en-us/WindowsForBusiness/end-of-xp-support),23No attempt is made to prevent installing or running the software on Windows XP, you24can still do so at your own risk but be aware that there are known instabilities and issues.25Please do not report issues about Windows XP to the issue tracker.27Bitcoin Core should also work on most other Unix-like systems but is not28frequently tested on them.30Notable changes31===============33Denial-of-Service vulnerability CVE-2018-1714434-------------------------------36A denial-of-service vulnerability exploitable by miners has been discovered in37Bitcoin Core versions 0.14.0 up to 0.16.2. It is recommended to upgrade any of38the vulnerable versions to 0.14.3, 0.15.2 or 0.16.3 as soon as possible.40Known Bugs41==========43Since 0.14.0 the approximate transaction fee shown in Bitcoin-Qt when using coin44control and smart fee estimation does not reflect any change in target from the45smart fee slider. It will only present an approximate fee calculated using the46default target. The fee calculated using the correct target is still applied to47the transaction and shown in the final send confirmation dialog.490.14.3 Change log50=================52Detailed release notes follow. This overview includes changes that affect53behavior, not code moves, refactors and string updates. For convenience in locating54the code changes and accompanying discussion, both the pull request and55git merge commit are mentioned.57### Consensus58- #14247 `52965fb` Fix crash bug with duplicate inputs within a transaction (TheBlueMatt, sdaftuar)60### RPC and other APIs62- #10445 `87a21d5` Fix: make CCoinsViewDbCursor::Seek work for missing keys (Pieter Wuille, Gregory Maxwell)63- #9853 Return correct error codes in setban(), fundrawtransaction(), removeprunedfunds(), bumpfee(), blockchain.cpp (John Newbery)66### P2P protocol and network code68- #10234 `d289b56` [net] listbanned RPC and QT should show correct banned subnets (John Newbery)70### Build system73### Miscellaneous75- #10451 `3612219` contrib/init/bitcoind.openrcconf: Don't disable wallet by default (Luke Dashjr)76- #10250 `e23cef0` Fix some empty vector references (Pieter Wuille)77- #10196 `d28d583` PrioritiseTransaction updates the mempool tx counter (Suhas Daftuar)78- #9497 `e207342` Fix CCheckQueue IsIdle (potential) race condition and remove dangerous constructors. (Jeremy Rubin)80### GUI82- #9481 `7abe7bb` Give fallback fee a reasonable indent (Luke Dashjr)83- #9481 `3e4d7bf` Qt/Send: Figure a decent warning colour from theme (Luke Dashjr)84- #9481 `e207342` Show more significant warning if we fall back to the default fee (Jonas Schnelli)86### Wallet88- #10308 `28b8b8b` Securely erase potentially sensitive keys/values (tjps)89- #10265 `ff13f59` Make sure pindex is non-null before possibly referencing in LogPrintf call. (Karl-Johan Alm)91Credits92=======94Thanks to everyone who directly contributed to this release:96- Cory Fields97- CryptAxe98- fanquake99- Jeremy Rubin100- John Newbery101- Jonas Schnelli102- Gregory Maxwell103- Karl-Johan Alm104- Luke Dashjr105- MarcoFalke106- Matt Corallo107- Mikerah108- Pieter Wuille109- practicalswift110- Suhas Daftuar111- Thomas Snider112- Tjps113- Wladimir J. van der Laan115And to those that reported security issues:117- awemany (for CVE-2018-17144, previously credited as "anonymous reporter")
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