doc: 25.2 historical release notes

doc/release-notes/release-notes-25.2.md

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+25.2 Release Notes
+==================
+
+Bitcoin Core version 25.2 is now available from:
+
+  <https://bitcoincore.org/bin/bitcoin-core-25.2>
+
+This 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 macOS)
+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 10.15+, 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.
+
+Notable changes
+===============
+
+### Gui
+
+- gui#774 Fix crash on selecting "Mask values" in transaction view
+
+### RPC
+
+- #29003 rpc: fix getrawtransaction segfault
+
+### Wallet
+
+- #29176 wallet: Fix use-after-free in WalletBatch::EraseRecords
+- #29510 wallet: `getrawchangeaddress` and `getnewaddress` failures should not affect keypools for descriptor wallets
+
+### P2P and network changes
+
+- #29412 p2p: Don't process mutated blocks
+- #29524 p2p: Don't consider blocks mutated if they don't connect to known prev block
+
+Credits
+=======
+
+Thanks to everyone who directly contributed to this release:
+
+- Martin Zumsande
+- Sebastian Falbesoner
+- MarcoFalke
+- UdjinM6
+- dergoegge
+- Greg Sanders
+
+As well as to everyone that helped with translations on
+[Transifex](https://www.transifex.com/bitcoin/bitcoin/).