- Update to version 26.1:
* [doc] add manual pages for 26.1
* [doc] update release notes 26.1
* [build] bump version to 26.1 final
* ci, macos: Use `--break-system-packages` with Homebrew's python
* ci: Add workaround for Homebrew's python link error
* [doc] update manual pages for v26.1rc2
* [build] bump version to v26.1rc2
* update release notes 26.1
* fuzz: restrict fopencookie usage to Linux & FreeBSD
* test: make sure keypool sizes do not change on `getrawchangeaddress`/`getnewaddress` failures
* wallet: Avoid updating `ReserveDestination::nIndex` when `GetReservedDestination` fails
* p2p: Don't consider blocks mutated if they don't connect to known prev block
* [test] IsBlockMutated unit tests
* [validation] Cache merkle root and witness commitment checks
* [test] Add regression test for #27608
* [net processing] Don't process mutated blocks
* [validation] Merkle root malleation should be caught by IsBlockMutated
* [validation] Introduce IsBlockMutated
* [refactor] Cleanup merkle root checks
* [validation] Isolate merkle root checks
* test: Drop `x` modifier in `fsbridge::fopen` call for mingw builds
* rpc: keep .cookie if it was not generated
* [doc] add release notes for 26.1rc1
* [doc] update manual pages for 26.1rc1
* [build] bump version to 26.1rc1
* qt: 26.1rc1 translations update
* ci: Switch native macOS CI job to Xcode 15.0
* build: Fix `-Xclang -internal-isystem` option
* Use hardened runtime on macOS release builds.