chore: bump version to v0.7.0-rc.6, update bindings

## Bug Fixes
- Fixed `derive_node_secret_from_mnemonic` to correctly match LDK's KeysManager node_secret derivation
- Added verification tests that compare derived secret against LDK's KeysManager output

## Code Quality
- Cleaned up `derive_node_secret_from_mnemonic` with better variable naming and moved imports to file top

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: ovitrif

CHANGELOG.md

@@ -1,3 +1,15 @@
+# 0.7.0-rc.6 (Synonym Fork)
+
+## Bug Fixes
+- Fixed `derive_node_secret_from_mnemonic` to correctly match LDK's KeysManager node_secret derivation:
+  - BIP39 seed (64 bytes) → BIP32 master key (32 bytes)
+  - Those 32 bytes as new seed → BIP32 master → derive m/0' → node_secret
+  - This ensures the derived key matches what a running Node instance would use, enabling proper backup authentication before the node starts
+- Added verification tests that compare derived secret against LDK's KeysManager output
+
+## Code Quality
+- Cleaned up `derive_node_secret_from_mnemonic` with better variable naming and moved imports to file top
+
 # 0.7.0-rc.2 (Synonym Fork)
 
 ## Synonym Fork Additions

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ldk-node"
-version = "0.7.0-rc.5"
+version = "0.7.0-rc.6"
 authors = ["Elias Rohrer <dev@tnull.de>"]
 homepage = "https://lightningdevkit.org/"
 license = "MIT OR Apache-2.0"

Package.swift

@@ -3,8 +3,8 @@
 
 import PackageDescription
 
-let tag = "v0.7.0-rc.5"
-let checksum = "4ef5195192cdb079f58e87d2b8b80943b223d764b6e93a6c7146b9583cfcc064"
+let tag = "v0.7.0-rc.6"
+let checksum = "4ea23aedbf918a1c93539168f34e626cbe867c1d5e827b7b7fd0e84225970b91"
 let url = "https://github.com/synonymdev/ldk-node/releases/download/\(tag)/LDKNodeFFI.xcframework.zip"
 
 let package = Package(

bindings/kotlin/ldk-node-android/gradle.properties

@@ -2,4 +2,4 @@ org.gradle.jvmargs=-Xmx1536m
 android.useAndroidX=true
 android.enableJetifier=true
 kotlin.code.style=official
-libraryVersion=0.7.0-rc.5
+libraryVersion=0.7.0-rc.6