Bitcoin Core version 0.21.1 is now available from:
https://bitcoincore.org/bin/bitcoin-core-0.21.1/
This minor release includes various bug fixes and performance improvements, as well as updated translations.
Please report bugs using the issue tracker at GitHub:
https://github.com/bitcoin/bitcoin/issues
To receive security and update notifications, please subscribe to:
https://bitcoincore.org/en/list/announcements/join/
If you are running an older version, shut it down. Wait until it has completely
shut down (which might take a few minutes in some cases), then run the
installer (on Windows) or just copy over /Applications/Bitcoin-Qt (on Mac)
or bitcoind/bitcoin-qt (on Linux).
Upgrading directly from a version of Bitcoin Core that has reached its EOL is possible, but it might take some time if the data directory needs to be migrated. Old wallet versions of Bitcoin Core are generally supported.
Bitcoin Core is supported and extensively tested on operating systems using the Linux kernel, macOS 10.12+, and Windows 7 and newer. Bitcoin Core should also work on most other Unix-like systems but is not as frequently tested on them. It is not recommended to use Bitcoin Core on unsupported systems.
From Bitcoin Core 0.20.0 onwards, macOS versions earlier than 10.12 are no longer supported. Additionally, Bitcoin Core does not yet change appearance when macOS "dark mode" is activated.
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Bitcoin Core should also work on most other Unix-like systems but is not frequently tested on them.
From 0.17.0 onwards macOS <10.10 is no longer supported. 0.17.0 is built using Qt 5.9.x, which doesn't support versions of macOS older than 10.10.
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The listtransactions RPC account parameter which was deprecated in 0.17.0
and renamed to dummy has been un-deprecated and renamed again to label.
When bitcoin is configured with the -deprecatedrpc=accounts setting, specifying
a label/account/dummy argument will return both outgoing and incoming
transactions. Without the -deprecatedrpc=accounts setting, it will only return
incoming transactions (because it used to be possible to create transactions
spending from specific accounts, but this is no longer possible with labels).
When -deprecatedrpc=accounts is set, it's possible to pass the empty string ""
to list transactions that don't have any label. Without
-deprecatedrpc=accounts, passing the empty string is an error because returning
only non-labeled transactions is not generally useful behavior and can cause
confusion.
Thanks to everyone who directly contributed to this release:
As well as to everyone that helped with translations on Transifex.