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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 0.10.1 is now available from:3<https://bitcoin.org/bin/bitcoin-core-0.10.1/>5This is a new minor version release, bringing bug fixes and translation6updates. It is recommended to upgrade to this version.8Please report bugs using the issue tracker at github:10<https://github.com/bitcoin/bitcoin/issues>12Upgrading and downgrading13=========================15How to Upgrade16--------------18If you are running an older version, shut it down. Wait until it has completely19shut down (which might take a few minutes for older versions), then run the20installer (on Windows) or just copy over /Applications/Bitcoin-Qt (on Mac) or21bitcoind/bitcoin-qt (on Linux).23Downgrade warning24------------------26Because release 0.10.0 and later makes use of headers-first synchronization and27parallel block download (see further), the block files and databases are not28backwards-compatible with pre-0.10 versions of Bitcoin Core or other software:30* Blocks will be stored on disk out of order (in the order they are31received, really), which makes it incompatible with some tools or32other programs. Reindexing using earlier versions will also not work33anymore as a result of this.35* The block index database will now hold headers for which no block is36stored on disk, which earlier versions won't support.38If you want to be able to downgrade smoothly, make a backup of your entire data39directory. Without this your node will need start syncing (or importing from40bootstrap.dat) anew afterwards. It is possible that the data from a completely41synchronised 0.10 node may be usable in older versions as-is, but this is not42supported and may break as soon as the older version attempts to reindex.44This does not affect wallet forward or backward compatibility.46Notable changes47===============49This is a minor release and hence there are no notable changes.50For the notable changes in 0.10, refer to the release notes for the510.10.0 release at https://github.com/bitcoin/bitcoin/blob/v0.10.0/doc/release-notes.md530.10.1 Change log54=================56Detailed release notes follow. This overview includes changes that affect external57behavior, not code moves, refactors or string updates.59RPC:60- `7f502be` fix crash: createmultisig and addmultisigaddress61- `eae305f` Fix missing lock in submitblock63Block (database) and transaction handling:64- `1d2cdd2` Fix InvalidateBlock to add chainActive.Tip to setBlockIndexCandidates65- `c91c660` fix InvalidateBlock to repopulate setBlockIndexCandidates66- `002c8a2` fix possible block db breakage during re-index67- `a1f425b` Add (optional) consistency check for the block chain data structures68- `1c62e84` Keep mempool consistent during block-reorgs69- `57d1f46` Fix CheckBlockIndex for reindex70- `bac6fca` Set nSequenceId when a block is fully linked72P2P protocol and network code:73- `78f64ef` don't trickle for whitelisted nodes74- `ca301bf` Reduce fingerprinting through timestamps in 'addr' messages.75- `200f293` Ignore getaddr messages on Outbound connections.76- `d5d8998` Limit message sizes before transfer77- `aeb9279` Better fingerprinting protection for non-main-chain getdatas.78- `cf0218f` Make addrman's bucket placement deterministic (countermeasure 1 against eclipse attacks, see http://cs-people.bu.edu/heilman/eclipse/)79- `0c6f334` Always use a 50% chance to choose between tried and new entries (countermeasure 2 against eclipse attacks)80- `214154e` Do not bias outgoing connections towards fresh addresses (countermeasure 2 against eclipse attacks)81- `aa587d4` Scale up addrman (countermeasure 6 against eclipse attacks)82- `139cd81` Cap nAttempts penalty at 8 and switch to pow instead of a division loop84Validation:85- `d148f62` Acquire CCheckQueue's lock to avoid race condition87Build system:88- `8752b5c` 0.10 fix for crashes on OSX 10.690Wallet:91- N/A93GUI:94- `2c08406` some mac specifiy cleanup (memory handling, unnecessary code)95- `81145a6` fix OSX dock icon window reopening96- `786cf72` fix a issue where "command line options"-action overwrite "Preference"-action (on OSX)98Tests:99- `1117378` add RPC test for InvalidateBlock101Miscellaneous:102- `c9e022b` Initialization: set Boost path locale in main thread103- `23126a0` Sanitize command strings before logging them.104- `323de27` Initialization: setup environment before starting Qt tests105- `7494e09` Initialization: setup environment before starting tests106- `df45564` Initialization: set fallback locale as environment variable108Credits109=======111Thanks to everyone who directly contributed to this release:113- Alex Morcos114- Cory Fields115- dexX7116- fsb4000117- Gavin Andresen118- Gregory Maxwell119- Ivan Pustogarov120- Jonas Schnelli121- Matt Corallo122- mrbandrews123- Pieter Wuille124- Ruben de Vries125- Suhas Daftuar126- Wladimir J. van der Laan128And all those who contributed additional code review and/or security research:129- 21E14130- Alison Kendler131- Aviv Zohar132- Ethan Heilman133- Evil-Knievel134- fanquake135- Jeff Garzik136- Jonas Nick137- Luke Dashjr138- Patrick Strateman139- Philip Kaufmann140- Sergio Demian Lerner141- Sharon Goldberg143As well as everyone that helped translating on [Transifex](https://www.transifex.com/projects/p/bitcoin/).
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