Update lnd documentation

docs/lnd/release-notes/release-notes-0.18.5.md

@@ -1,8 +1,58 @@
-## Bug Fixes
+# Release Notes
+- [Bug Fixes](#bug-fixes)
+- [New Features](#new-features)
+    - [Functional Enhancements](#functional-enhancements)
+    - [RPC Additions](#rpc-additions)
+    - [lncli Additions](#lncli-additions)
+- [Improvements](#improvements)
+    - [Functional Updates](#functional-updates)
+    - [RPC Updates](#rpc-updates)
+    - [lncli Updates](#lncli-updates)
+    - [Breaking Changes](#breaking-changes)
+    - [Performance Improvements](#performance-improvements)
+- [Technical and Architectural Updates](#technical-and-architectural-updates)
+    - [BOLT Spec Updates](#bolt-spec-updates)
+    - [Testing](#testing)
+    - [Database](#database)
+    - [Code Health](#code-health)
+    - [Tooling and Documentation](#tooling-and-documentation)
+
+# Bug Fixes
+
+* [Fixed a bug](https://github.com/lightningnetwork/lnd/pull/9459) where we
+  would not cancel accepted HTLCs on AMP invoices if the whole invoice was
+  canceled.
+
+# New Features
+
+## Functional Enhancements
+
+## RPC Additions
+
+## lncli Additions
+
+
+# Improvements
+## Functional Updates
+## RPC Updates
+
+## lncli Updates
+## Code Health
+## Breaking Changes
+## Performance Improvements
+
+# Technical and Architectural Updates
+## BOLT Spec Updates
+
+## Testing
+## Database
+## Code Health
 
 * [Improved user experience](https://github.com/lightningnetwork/lnd/pull/9454)
  by returning a custom error code when HTLC carries incorrect custom records.
+
+## Tooling and Documentation
 
 # Contributors (Alphabetical Order)
 
-* Ziggie
+* Ziggie

docs/lnd/release-notes/release-notes-0.19.0.md

@@ -10,6 +10,7 @@
     - [lncli Updates](#lncli-updates)
     - [Breaking Changes](#breaking-changes)
     - [Performance Improvements](#performance-improvements)
+    - [Deprecations](#deprecations)
 - [Technical and Architectural Updates](#technical-and-architectural-updates)
     - [BOLT Spec Updates](#bolt-spec-updates)
     - [Testing](#testing)
@@ -242,6 +243,26 @@ The underlying functionality between those two options remain the same.
 
 * Log rotation can now use ZSTD
 
+## Deprecations
+
+### ⚠️ **Warning:** The following RPCs will be removed in release version **0.21**:
+
+| Deprecated RPC Method | REST Equivalent | HTTP Method | Path | Replaced By |
+|----------------------|----------------|-------------|------------------------------|------------------|
+| [`lnrpc.SendToRoute`](https://lightning.engineering/api-docs/api/lnd/lightning/send-to-route/index.html) <br> [`routerrpc.SendToRoute`](https://lightning.engineering/api-docs/api/lnd/router/send-to-route/) | ❌ (No direct REST equivalent) | — | — | [`routerrpc.SendToRouteV2`](https://lightning.engineering/api-docs/api/lnd/router/send-to-route-v2/) |
+| [`lnrpc.SendPayment`](https://lightning.engineering/api-docs/api/lnd/lightning/send-payment/) <br> [`routerrpc.SendPayment`](https://lightning.engineering/api-docs/api/lnd/router/send-payment/) | ✅ | `POST` | `/v1/channels/transaction-stream` | [`routerrpc.SendPaymentV2`](https://lightning.engineering/api-docs/api/lnd/router/send-payment-v2/index.html) |
+| [`lnrpc.SendToRouteSync`](https://lightning.engineering/api-docs/api/lnd/lightning/send-to-route-sync/index.html) | ✅ | `POST` | `/v1/channels/transactions/route` | [`routerrpc.SendToRouteV2`](https://lightning.engineering/api-docs/api/lnd/router/send-to-route-v2/) |
+| [`lnrpc.SendPaymentSync`](https://lightning.engineering/api-docs/api/lnd/lightning/send-payment-sync/index.html) | ✅ | `POST` | `/v1/channels/transactions` | [`routerrpc.SendPaymentV2`](https://lightning.engineering/api-docs/api/lnd/router/send-payment-v2/index.html) |
+| [`router.TrackPayment`](https://lightning.engineering/api-docs/api/lnd/router/track-payment/index.html) | ❌ (No direct REST equivalent) | — | — | [`routerrpc.TrackPaymentV2`](https://lightning.engineering/api-docs/api/lnd/router/track-payment-v2/) |
+
+🚨 **Users are strongly encouraged** to transition to the new **V2 methods** before release **0.21** to ensure compatibility:
+
+| New RPC Method | REST Equivalent | HTTP Method | Path |
+|---------------|----------------|-------------|------------------------|
+| [`routerrpc.SendToRouteV2`](https://lightning.engineering/api-docs/api/lnd/router/send-to-route-v2/) | ✅ | `POST` | `/v2/router/route/send` |
+| [`routerrpc.SendPaymentV2`](https://lightning.engineering/api-docs/api/lnd/router/send-payment-v2/index.html) | ✅ | `POST` | `/v2/router/send` |
+| [`routerrpc.TrackPaymentV2`](https://lightning.engineering/api-docs/api/lnd/router/track-payment-v2/) | ✅ | `GET` | `/v2/router/track/{payment_hash}` |
+
 # Technical and Architectural Updates
 ## BOLT Spec Updates