From 4c0c89307dabbf51a32551471c54966ddf7c5bc3 Mon Sep 17 00:00:00 2001
From: Jon Atack <jon@atack.com>
Date: Sun, 7 Jun 2020 16:57:18 +0200
Subject: [PATCH 1/2] log: remove deprecated `db` log category

---
 src/logging.cpp | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/src/logging.cpp b/src/logging.cpp
index fe58ae9e73e..35e0754f205 100644
--- a/src/logging.cpp
+++ b/src/logging.cpp
@@ -95,15 +95,7 @@ void BCLog::Logger::EnableCategory(BCLog::LogFlags flag)
 bool BCLog::Logger::EnableCategory(const std::string& str)
 {
     BCLog::LogFlags flag;
-    if (!GetLogCategory(flag, str)) {
-        if (str == "db") {
-            // DEPRECATION: Added in 0.20, should start returning an error in 0.21
-            LogPrintf("Warning: logging category 'db' is deprecated, use 'walletdb' instead\n");
-            EnableCategory(BCLog::WALLETDB);
-            return true;
-        }
-        return false;
-    }
+    if (!GetLogCategory(flag, str)) return false;
     EnableCategory(flag);
     return true;
 }

From c514a4f59a7430f05dbe20465ddf4ca323329f1e Mon Sep 17 00:00:00 2001
From: Jon Atack <jon@atack.com>
Date: Sun, 7 Jun 2020 17:33:25 +0200
Subject: [PATCH 2/2] doc: release note for `db` log category removal

---
 doc/release-notes.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/release-notes.md b/doc/release-notes.md
index 80c385a471c..d9d0ecd6317 100644
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -94,6 +94,9 @@ Build System
 Updated settings
 ----------------
 
+- The `-debug=db` logging category, which was deprecated in 0.20 and replaced by
+  `-debug=walletdb` to distinguish it from `coindb`, has been removed. (#19202)
+
 Changes to Wallet or GUI related settings can be found in the GUI or Wallet  section below.
 
 New settings