a

doc/release-notes.md

@@ -1,20 +1,20 @@
 27.1 Release Notes
 =====================
 
-Bitcoin Core version 27.1 is now available from:
+Bitcoin Knots version 27.1.knots20240612 is now available from:
 
-  <https://bitcoincore.org/bin/bitcoin-core-27.1/>
+  <https://bitcoinknots.org/files/27.x/27.1.knots20240612/>
 
-This release includes various bug fixes and performance
-improvements, as well as updated translations.
+This release includes new features, various bug fixes, and performance
+improvements.
 
 Please report bugs using the issue tracker at GitHub:
 
-  <https://github.com/bitcoin/bitcoin/issues>
+  <https://github.com/bitcoinknots/bitcoin/issues>
 
 To receive security and update notifications, please subscribe to:
 
-  <https://bitcoincore.org/en/list/announcements/join/>
+  <https://bitcoinknots.org/list/announcements/join/>
 
 How to Upgrade
 ==============
@@ -24,91 +24,181 @@ 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 macOS)
 or `bitcoind`/`bitcoin-qt` (on Linux).
 
-Upgrading directly from a version of Bitcoin Core that has reached its EOL is
+Upgrading directly from very old versions of Bitcoin Core or Knots 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.
+wallet versions of Bitcoin Knots are generally supported.
 
 Compatibility
 ==============
 
-Bitcoin Core is supported and extensively tested on operating systems
-using the Linux Kernel 3.17+, macOS 11.0+, 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.
+Bitcoin Knots is supported on operating systems using the Linux kernel,
+macOS 11.0+, and Windows 7 and newer. It is not recommended to use
+Bitcoin Knots on unsupported systems.
 
 Notable changes
 ===============
 
-### Miniscript
+mempool.dat compatibility
+-------------------------
 
-- #29853 sign: don't assume we are parsing a sane TapMiniscript
+- The `mempool.dat` file created by -persistmempool or the savemempool RPC will
+  be written in a new format. This new format includes the XOR'ing of transaction
+  contents to mitigate issues where external programs (such as anti-virus) attempt
+  to interpret and potentially modify the file.
 
-### RPC
+  This new format can not be read by previous software releases. To allow for a
+  downgrade, a temporary setting `-persistmempoolv1` has been added to fall back
+  to the legacy format. (#28207)
 
-- #29869 rpc, bugfix: Enforce maximum value for setmocktime
-- #29870 rpc: Reword SighashFromStr error message
-- #30094 rpc: move UniValue in blockToJSON
+P2P and network changes
+-----------------------
 
-### Index
+- BIP324 v2 transport is now enabled by default. It remains possible to disable v2
+  by running with `-v2transport=0`. (#29347)
+- Manual connection options (`-connect`, `-addnode` and `-seednode`) will
+  now follow `-v2transport` to connect with v2 by default. They will retry with
+  v1 on failure. (#29058)
 
-- #29776 Fix #29767, set m_synced = true after Commit()
+- Network-adjusted time has been removed from consensus code. It is replaced
+  with (unadjusted) system time. The warning for a large median time offset
+  (70 minutes or more) is kept. This removes the implicit security assumption of
+  requiring an honest majority of outbound peers, and increases the importance
+  of the node operator ensuring their system time is (and stays) correct to not
+  fall out of consensus with the network. (#28956)
 
-### Gui
+Mempool Policy Changes
+----------------------
 
-- #gui812 Fix create unsigned transaction fee bump
-- #gui813 Don't permit port in proxy IP option
+- Opt-in Topologically Restricted Until Confirmation (TRUC) Transactions policy
+  (aka v3 transaction policy) is available for use on test networks when
+  `-acceptnonstdtxn=1` is set. By setting the transaction version number to 3, TRUC transactions
+  request the application of limits on spending of their unconfirmed outputs. These
+  restrictions simplify the assessment of incentive compatibility of accepting or
+  replacing TRUC transactions, thus ensuring any replacements are more profitable for
+  the node and making fee-bumping more reliable. TRUC transactions are currently
+  nonstandard and can only be used on test networks where the standardness rules are
+  relaxed or disabled (e.g. with `-acceptnonstdtxn=1`). (#28948)
 
-### Test
+External Signing
+----------------
 
-- #29892 test: Fix failing univalue float test
+- Support for external signing on Windows has been disabled. It will be re-enabled
+  once the underlying dependency (Boost Process), has been replaced with a different
+  library. (#28967)
 
-### P2P
+Updated RPCs
+------------
 
-- #30085 p2p: detect addnode cjdns peers in GetAddedNodeInfo()
+- The addnode RPC now follows the `-v2transport` option (now on by default, see above) for making connections.
+  It remains possible to specify the transport type manually with the v2transport argument of addnode. (#29239)
 
-### Build
+Build System
+------------
 
-- #29747 depends: fix mingw-w64 Qt DEBUG=1 build
-- #29859 build: Fix false positive CHECK_ATOMIC test
-- #29985 depends: Fix build of Qt for 32-bit platforms with recent glibc
-- #30097 crypto: disable asan for sha256_sse4 with clang and -O0
-- #30151 depends: Fetch miniupnpc sources from an alternative website
-- #30216 build: Fix building fuzz binary on on SunOS / illumos
-- #30217 depends: Update Boost download link
+- A C++20 capable compiler is now required to build Bitcoin Core. (#28349)
+- MacOS releases are configured to use the hardened runtime libraries (#29127)
 
-### Doc
+Wallet
+------
 
-- #29934 doc: add LLVM instruction for macOS < 13
+- The CoinGrinder coin selection algorithm has been introduced to mitigate unnecessary
+  large input sets and lower transaction costs at high feerates. CoinGrinder
+  searches for the input set with minimal weight. Solutions found by
+  CoinGrinder will produce a change output. CoinGrinder is only active at
+  elevated feerates (default: 30+ sat/vB, based on `-consolidatefeerate`×3). (#27877)
+- The Branch And Bound coin selection algorithm will be disabled when the subtract fee
+  from outputs feature is used. (#28994)
+- If the birth time of a descriptor is detected to be later than the first transaction
+  involving that descriptor, the birth time will be reset to the earlier time. (#28920)
 
-### CI
+Low-level changes
+=================
 
-- #29856 ci: Bump s390x to ubuntu:24.04
+Pruning
+-------
 
-### Misc
+- When pruning during initial block download, more blocks will be pruned at each
+  flush in order to speed up the syncing of such nodes. (#20827)
 
-- #29691 Change Luke Dashjr seed to dashjr-list-of-p2p-nodes.us
-- #30149 contrib: Renew Windows code signing certificate
+Init
+----
+
+- Various fixes to prevent issues where subsequent instances of Bitcoin Core would
+  result in deletion of files in use by an existing instance. (#28784, #28946)
+- Improved handling of empty `settings.json` files. (#29144)
 
 Credits
 =======
 
 Thanks to everyone who directly contributed to this release:
 
+- 22388o⚡️
+- Aaron Clauson
+- Amiti Uttarwar
+- Andrew Toth
+- Anthony Towns
 - Antoine Poinsot
 - Ava Chow
+- Brandon Odiwuor
+- brunoerg
+- Chris Stewart
 - Cory Fields
 - dergoegge
+- djschnei21
+- Fabian Jahr
 - fanquake
 - furszy
+- Gloria Zhao
+- Greg Sanders
 - Hennadii Stepanov
+- Hernan Marino
+- iamcarlos94
+- ismaelsadeeq
+- Jameson Lopp
+- Jesse Barton
+- John Moffett
 - Jon Atack
-- laanwj
+- josibake
+- jrakibi
+- Justin Dhillon
+- Kashif Smith
+- kevkevin
+- Kristaps Kaupe
+- L0la L33tz
 - Luke Dashjr
+- Lőrinc
+- marco
 - MarcoFalke
+- Mark Friedenbach
+- Marnix
+- Martin Leitner-Ankerl
+- Martin Zumsande
+- Max Edwards
+- Murch
+- muxator
+- naiyoma
 - nanlour
+- Nikodemas Tuckus
+- ns-xvrn
+- pablomartin4btc
+- Peter Todd
+- Pieter Wuille
+- Richard Myers
+- Roman Zeyde
+- Russell Yanofsky
+- Ryan Ofsky
+- Sebastian Falbesoner
+- Sergi Delgado Segura
 - Sjors Provoost
+- stickies-v
+- stratospher
+- Supachai Kheawjuy
+- TheCharlatan
+- UdjinM6
+- Vasil Dimov
+- w0xlt
 - willcl-ark
+- Wladimir J. van der Laan
 
 As well as to everyone that helped with translations on
 [Transifex](https://www.transifex.com/bitcoin/bitcoin/).