Adding release notes and bumping version

configure.ac

@@ -2,7 +2,7 @@ AC_PREREQ([2.69])
 define(_CLIENT_VERSION_MAJOR, 0)
 define(_CLIENT_VERSION_MINOR, 21)
 define(_CLIENT_VERSION_REVISION, 2)
-define(_CLIENT_VERSION_BUILD, 0)
+define(_CLIENT_VERSION_BUILD, 1)
 define(_CLIENT_VERSION_RC, 0)
 define(_CLIENT_VERSION_IS_RELEASE, true)
 define(_COPYRIGHT_YEAR, 2022)

doc/litecoin-release-notes/release-notes-0.21.2.1.md

@@ -0,0 +1,21 @@
+Litecoin Core version 0.21.2.1 is now available from:
+
+ <https://download.litecoin.org/litecoin-0.21.2.1/>.
+
+This includes a critical bug fix for upgraded wallets to receive via MWEB.
+
+Please report bugs using the issue tracker at GitHub:
+
+  <https://github.com/litecoin-project/litecoin/issues>
+
+To receive security and update notifications, please subscribe to:
+
+  <https://groups.google.com/forum/#!forum/litecoin-dev>
+
+Notable changes
+===============
+
+An issue with MWEB key generation for older wallets that were upgraded was solved.
+Keys are now generated from the appropriate keypools, and coins sent to previously generated stealth addresses are recoverable.
+Use `rescanblockchain` after upgrading to recover any missing MWEB coins.
+

doc/release-notes-litecoin.md

@@ -1,8 +1,8 @@
-Litecoin Core version 0.21.2 is now available from:
+Litecoin Core version 0.21.2.1 is now available from:
 
- <https://download.litecoin.org/litecoin-0.21.2/>.
+ <https://download.litecoin.org/litecoin-0.21.2.1/>.
 
-This is the largest update ever, providing full node, wallet, and mining support for MWEB.
+This includes a critical bug fix for upgraded wallets to receive via MWEB.
 
 Please report bugs using the issue tracker at GitHub:
 
@@ -12,109 +12,10 @@ To receive security and update notifications, please subscribe to:
 
   <https://groups.google.com/forum/#!forum/litecoin-dev>
 
-
-How to upgrade: 
-==============
-
-Firstly, thank you for running Litecoin Core and helping secure the network!
-
-As you’re running an older version of Litecoin Core, shut it down. Wait until it’s completely shut down  - which might take a few minutes for older versions - then follow these simple steps:
-For Windows: simply run the installer 
-For Mac: copy over to `/Applications/Litecoin-Qt` 
-For Linux: copy cover `litecoind`/`litecoin-qt`.
-
-NB: upgrading directly from an ‘end of life’ version of Litecoin Core is possible, but it might take a while if the data directory needs to be migrated. Old wallet versions of Litecoin Core are generally supported.
- 
-
-Compatibility:
-==============
-
-Litecoin Core is supported and extensively tested on operating systems using the Linux kernel, macOS 10.10+,  Windows 7 and newer. It’s not recommended to use Litecoin Core on unsupported systems.
-
-Litecoin Core should also work on most other Unix-like systems, but is not as frequently tested on them.
-
-MWEB fields added to BlockIndex, and block serialization format has changed. Downgrading to older versions is unsafe.
-
-If upgrading to 0.21.2 *after* MWEB has activated, you must resync to download MWEB blocks.
-
 Notable changes
 ===============
 
-Consensus changes
------------------
-
-- This release implements the proposed MWEB consensus rules
-  ([LIP002](https://github.com/litecoin-project/lips/blob/master/lip-0002.mediawiki),
-  [LIP003](https://github.com/litecoin-project/lips/blob/master/lip-0003.mediawiki), and
-  [LIP004](https://github.com/litecoin-project/lips/blob/master/lip-0004.mediawiki))
-
-P2P and network changes
------------------------
-
-- A new service flag, NODE_MWEB (1 << 24), was added to signal to peers that the node supports MWEB.
-  When connected peers both advertise this capability, they are expected to provide all MWEB data when
-  sharing transactions, blocks, and compact blocks with each other.
-
-- Nodes now announce compact block version 3 support, informing peers that they can provide MWEB data
-  in compact blocks.
-
-
-Updated RPCs
-------------
-
-- `getblockheader` now returns an additional `mweb_header` field containing
-  all of the MWEB header data, and an `mweb_amount` field containing the total
-  number of coins pegged-in to the MWEB after applying the block.
-
-- `getblock` now returns an additional `mweb` field containing MWEB header info,
-  and all of the inputs, outputs, and kernels in the MWEB block.
-
-- Added `mwebweight`, `descendantmwebweight`, `ancestormwebweight`, and `mweb`
-  fields to `getrawmempool`, `getmempoolancestors`, `getmempooldescendants`,
-  and `getmempoolentry`.
-
-- Added new fields to describe MWEB transaction inputs, outputs, and kernels
-  for `getrawtransaction`.
-
-Changes to Wallet or GUI related RPCs can be found in the GUI or Wallet section below.
-
-New settings
-------------
-
-- Added "fMWEBFeatures" option for enabling the new "Advanced MWEB Features"
-  control.
-
-Wallet Database
----------------
-
-- Added "mweb_coin" type which stores MWEB coins and their derived keys.
-
-- Added CHDChain version 4 which includes an MWEB key index counter and
-  the stealth address scan key.
-
-- Added CKeyMetadata version 14 which includes the MWEB key index.
-
-- Added FEATURE_MWEB = 210000 minimum database version.
-
-Wallet RPC changes
-------------------
-
-- Added 'listwallettransactions' which matches the transaction list display values.
-
-GUI changes
------------
-
-- Added an "Advanced MWEB Features" control for testing. It’s only available
-  when the "-debug" argument is supplied, and the option is turned on in the
-  settings dialog.
-
-
-Credits
-=======
-
-Thanks to everyone who directly contributed to this release:
+An issue with MWEB key generation for older wallets that were upgraded was solved.
+Keys are now generated from the appropriate keypools, and coins sent to previously generated stealth addresses are recoverable.
+Use `rescanblockchain` after upgrading to recover any missing MWEB coins.
 
-- [The Bitcoin Core Developers](https://github.com/bitcoin/bitcoin/tree/master/doc/release-notes)
-- DavidBurkett
-- hectorchu
-- losh11

test/functional/mweb_wallet_upgrade.py

@@ -41,7 +41,7 @@ class MWEBWalletUpgradeTest(BitcoinTestFramework):
         #
         # Replace node1's wallet with the non-HD wallet.dat
         #
-        #self.log.info("Replacing wallet with non-hd wallet.dat")
+        self.log.info("Replacing wallet with non-hd wallet.dat")
         node1.get_wallet_rpc(self.default_wallet_name).unloadwallet()
         upgrade_wallet_dir = os.path.join(node1.datadir, "regtest", "wallets", self.default_wallet_name)
         shutil.rmtree(upgrade_wallet_dir)