Merge #808: Bitcoin Core 0.21.2

a282080 Bitcoin Core 0.21.2 (fanquake)

Pull request description:

  Adds a release announcement for 0.21.2. Modeled after #792.

ACKs for top commit:
  harding:
    Tested ACK a282080 .  Checked local preview and locally ran the CI tests.  Thanks!

Tree-SHA512: d27641dda209225d043adfa86a1f99e58ab1f4164e8b18e65cefda5da52ecb3ddb812cabdab7ca36de83b68520d2c387b15ac11a9ee610055211587680e27e85

Author: harding

_posts/en/posts/2021-09-29-release-0.21.2.md

@@ -0,0 +1,30 @@
+---
+title: Bitcoin Core 0.21.2 released
+name: blog-release-0.21.2
+id: en-blog-release-0.21.2
+lang: en
+type: posts
+layout: post
+
+## If this is a new post, reset this counter to 1.
+version: 1
+
+## Only true if release announcement or security annoucement.  English posts only
+announcement: 1
+
+excerpt: >
+  Bitcoin Core 0.21.2 is now available.
+---
+Bitcoin Core version 0.21.2 is now available for [download][download
+page].  See the [release notes][] for more information about the many
+new features and bug fixes in this release.
+
+If have any questions, please stop by the #bitcoin IRC chatroom
+([IRC][irc], [web][web irc]) and we’ll do our best to help you.
+
+[release notes]: /en/releases/0.21.2/
+[IRC]: irc://irc.libera.chat/bitcoin
+[web irc]: https://web.libera.chat/#bitcoin
+[download page]: /en/download
+
+{% include references.md %}

_releases/0.21.2.md

@@ -0,0 +1,137 @@
+---
+title: Bitcoin Core 0.21.2
+id: en-release-0.21.2
+name: release-0.21.2
+permalink: /en/releases/0.21.2/
+excerpt: Bitcoin Core version 0.21.2 is now available
+date: 2021-09-29
+
+## Use a YAML array for the version number to allow other parts of the
+## site to correctly sort in "natural sort of version numbers".
+## Use the same number of elements as decimal places, e.g. "0.1.2 => [0,
+## 1, 2]" versus "1.2 => [1, 2]"
+release: [0, 21, 2]
+
+## Optional magnet link.  To get it, open the torrent in a good BitTorrent client
+## and View Details, or install the transmission-cli Debian/Ubuntu package
+## and run: transmission-show -m <torrent file>
+#
+## Link should be enclosed in quotes and start with: "magnet:?
+optional_magnetlink: "magnet:?xt=urn:btih:c1a634e9efb58d783ccda4e710d8105d7ddd31ab&dn=bitcoin-core-0.21.2&tr=udp%3A%2F%2Ftracker.openbittorrent.com%3A80&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969%2Fannounce&tr=udp%3A%2F%2Fexplodie.org%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.torrent.eu.org%3A451%2Fannounce&tr=udp%3A%2F%2Ftracker.bitcoin.sprovoost.nl%3A6969"
+
+# Note: it is recommended to check all links to ensure they use
+#       absolute urls (https://github.com/bitcoin/bitcoin/doc/foo)
+#       rather than relative urls (/bitcoin/bitcoin/doc/foo).
+---
+{% include download.html %}
+{% githubify https://github.com/bitcoin/bitcoin %}
+0.21.2 Release Notes
+====================
+
+Bitcoin Core version 0.21.2 is now available from:
+
+  <https://bitcoincore.org/bin/bitcoin-core-0.21.2/>
+
+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/>
+
+How to Upgrade
+==============
+
+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.
+
+Compatibility
+==============
+
+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.
+
+
+0.21.2 change log
+=================
+
+### P2P protocol and network code
+
+- #21644 use NetPermissions::HasFlag() in CConnman::Bind() (jonatack)
+- #22569 Rate limit the processing of rumoured addresses (sipa)
+
+### Wallet
+
+- #21907 Do not iterate a directory if having an error while accessing it (hebasto)
+
+### RPC
+
+- #19361 Reset scantxoutset progress before inferring descriptors (prusnak)
+
+### Build System
+
+- #21932 depends: update Qt 5.9 source url (kittywhiskers)
+- #22017 Update Windows code signing certificate (achow101)
+- #22191 Use custom MacOS code signing tool (achow101)
+- #22713 Fix build with Boost 1.77.0 (sizeofvoid)
+
+### Tests and QA
+
+- #20182 Build with --enable-werror by default, and document exceptions (hebasto)
+- #20535 Fix intermittent feature_taproot issue (MarcoFalke)
+- #21663 Fix macOS brew install command (hebasto)
+- #22279 add missing ECCVerifyHandle to base_encode_decode (apoelstra)
+- #22730 Run fuzzer task for the master branch only (hebasto)
+
+### GUI
+
+- gui#277 Do not use QClipboard::Selection on Windows and macOS. (hebasto)
+- gui#280 Remove user input from URI error message (prayank23)
+- gui#365 Draw "eye" sign at the beginning of watch-only addresses (hebasto)
+
+### Miscellaneous
+
+- #22002 Fix crash when parsing command line with -noincludeconf=0 (MarcoFalke)
+- #22137 util: Properly handle -noincludeconf on command line (take 2) (MarcoFalke)
+
+
+Credits
+=======
+
+Thanks to everyone who directly contributed to this release:
+
+- Andrew Chow
+- Andrew Poelstra
+- fanquake
+- Hennadii Stepanov
+- Jon Atack
+- Kittywhiskers Van Gogh
+- Luke Dashjr
+- MarcoFalke
+- Pavol Rusnak
+- Pieter Wuille
+- prayank23
+- Rafael Sadowski
+- W. J. van der Laan
+
+
+As well as to everyone that helped with translations on
+[Transifex](https://www.transifex.com/bitcoin/bitcoin/).
+{% endgithubify %}