Merge bitcoin#22858: [0.21] Final changes for 0.21.2

6c102a6 release: bump RC to 0 (-final) (fanquake)
f78570e doc: mention bech32m/BIP350 in doc/descriptors.md (Pieter Wuille)

Pull request description:

  Backports:
  * bitcoin#22837 - doc: mention bech32m/BIP350 in doc/descriptors.md

ACKs for top commit:
  laanwj:
    ACK 6c102a6
  glozow:
    ACK 6c102a6 looks correct to me
  jnewbery:
    ACK 6c102a6

Tree-SHA512: 8cdfee955e1abdbc6900df3d01982cb77ec57ef008b75487ac9a63d571cc21e4ae0f107849aa575d239a8662619553778955ffbebf57201de5afcd34298d57b4

Author: fanquake

Diff for: configure.ac

@@ -3,7 +3,7 @@ define(_CLIENT_VERSION_MAJOR, 0)
 define(_CLIENT_VERSION_MINOR, 21)
 define(_CLIENT_VERSION_REVISION, 2)
 define(_CLIENT_VERSION_BUILD, 0)
-define(_CLIENT_VERSION_RC, 2)
+define(_CLIENT_VERSION_RC, 0)
 define(_CLIENT_VERSION_IS_RELEASE, true)
 define(_COPYRIGHT_YEAR, 2020)
 define(_COPYRIGHT_HOLDERS,[The %s developers])

Diff for: doc/descriptors.md

@@ -91,7 +91,7 @@ Descriptors consist of several types of expressions. The top level expression is
 `ADDR` expressions are any type of supported address:
 - P2PKH addresses (base58, of the form `1...` for mainnet or `[nm]...` for testnet). Note that P2PKH addresses in descriptors cannot be used for P2PK outputs (use the `pk` function instead).
 - P2SH addresses (base58, of the form `3...` for mainnet or `2...` for testnet, defined in [BIP 13](https://github.com/bitcoin/bips/blob/master/bip-0013.mediawiki)).
-- Segwit addresses (bech32, of the form `bc1...` for mainnet or `tb1...` for testnet, defined in [BIP 173](https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki)).
+- Segwit addresses (bech32 and bech32m, of the form `bc1...` for mainnet or `tb1...` for testnet, defined in [BIP 173](https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki) and [BIP 350](https://github.com/bitcoin/bips/blob/master/bip-0350.mediawiki)).
 
 ## Explanation
 

Diff for: doc/release-notes.md

@@ -1,9 +1,9 @@
-0.21.2rc2 Release Notes
+0.21.2 Release Notes
 ====================
 
-Bitcoin Core version 0.21.2rc2 is now available from:
+Bitcoin Core version 0.21.2 is now available from:
 
-  <https://bitcoincore.org/bin/bitcoin-core-0.21.2/test.rc2/>
+  <https://bitcoincore.org/bin/bitcoin-core-0.21.2/>
 
 This minor release includes various bug fixes and performance
 improvements, as well as updated translations.
@@ -42,7 +42,7 @@ longer supported. Additionally, Bitcoin Core does not yet change appearance
 when macOS "dark mode" is activated.
 
 
-0.21.2rc2 change log
+0.21.2 change log
 =================
 
 ### P2P protocol and network code