logging: deprecate libevent category

diff --git a/src/logging.cpp b/src/logging.cpp
index 4b6fd96b..0dd760b9 100644
--- a/src/logging.cpp
+++ b/src/logging.cpp
@@ -133,6 +133,11 @@ void BCLog::Logger::EnableCategory(BCLog::LogFlags flag)
 bool BCLog::Logger::EnableCategory(std::string_view str)
 {
     if (const auto flag{GetLogCategory(str)}) {
+        if (*flag & DEPRECATED){
+            LogWarning("The logging category `%s` is deprecated, can not be enabled, and will be removed in a future version", str);
+            // Deprecated does not mean unsupported, which may prevent startup
+            return true;
+        }
         EnableCategory(*flag);
         return true;
     }
@@ -147,6 +152,11 @@ void BCLog::Logger::DisableCategory(BCLog::LogFlags flag)
 bool BCLog::Logger::DisableCategory(std::string_view str)
 {
     if (const auto flag{GetLogCategory(str)}) {
+        if (*flag & DEPRECATED){
+            LogWarning("The logging category `%s` is deprecated and will be removed in a future version", str);
+            // Deprecated does not mean unsupported, which may prevent startup
+            return true;
+        }
         DisableCategory(*flag);
         return true;
     }
diff --git a/src/logging/categories.h b/src/logging/categories.h
index dff00ada..b4c6b1a1 100644
--- a/src/logging/categories.h
+++ b/src/logging/categories.h
@@ -46,9 +46,10 @@ enum LogFlags : CategoryMask {
     TXPACKAGES = (CategoryMask{1} << 28),
     KERNEL = (CategoryMask{1} << 29),
     PRIVBROADCAST = (CategoryMask{1} << 30),
-    ALL = ~NONE,
+    DEPRECATED = LIBEVENT,
+    // Remove deprecated categories from ALL
+    ALL = ~DEPRECATED,
 };
-
 } // namespace BCLog
 
 #endif // BITCOIN_LOGGING_CATEGORIES_H
diff --git a/src/rpc/node.cpp b/src/rpc/node.cpp
index 34ef8eb1..6d0d5511 100644
--- a/src/rpc/node.cpp
+++ b/src/rpc/node.cpp
@@ -248,26 +248,16 @@ static RPCMethod logging()
                 },
                 RPCExamples{
                     HelpExampleCli("logging", "\"[\\\"all\\\"]\" \"[\\\"http\\\"]\"")
-            + HelpExampleRpc("logging", "[\"all\"], [\"libevent\"]")
+            + HelpExampleRpc("logging", "[\"all\"], [\"leveldb\"]")
                 },
         [](const RPCMethod& self, const JSONRPCRequest& request) -> UniValue
 {
-    BCLog::CategoryMask original_log_categories = LogInstance().GetCategoryMask();
     if (request.params[0].isArray()) {
         EnableOrDisableLogCategories(request.params[0], true);
     }
     if (request.params[1].isArray()) {
         EnableOrDisableLogCategories(request.params[1], false);
     }
-    BCLog::CategoryMask updated_log_categories = LogInstance().GetCategoryMask();
-    BCLog::CategoryMask changed_log_categories = original_log_categories ^ updated_log_categories;
-
-    // Update libevent logging if BCLog::LIBEVENT has changed.
-    if (changed_log_categories & BCLog::LIBEVENT) {
-        // Currently no modules in the codebase produce libevent log messages.
-        // To redirect libevent messages to our own logs see commit 8b2d6edaa9fbfb6344ca51edd0b3655b451cbcac
-        // in https://github.com/bitcoin/bitcoin/pull/6695
-    }
 
     UniValue result(UniValue::VOBJ);
     for (const auto& logCatActive : LogInstance().LogCategoriesList()) {
diff --git a/src/test/logging_tests.cpp b/src/test/logging_tests.cpp
index 5595fe16..29cbe8e7 100644
--- a/src/test/logging_tests.cpp
+++ b/src/test/logging_tests.cpp
@@ -167,7 +167,11 @@ BOOST_FIXTURE_TEST_CASE(logging_LogPrintMacros_CategoryName, LogSetup)
     for (const auto& category_name : category_names) {
         const auto trimmed_category_name = TrimString(category_name);
         const auto category{*Assert(BCLog::Logger::GetLogCategory(trimmed_category_name))};
-        expected_category_names.emplace_back(category, trimmed_category_name);
+        if (category & BCLog::LogFlags::ALL) {
+            expected_category_names.emplace_back(category, trimmed_category_name);
+        } else {
+            BOOST_CHECK(category & BCLog::LogFlags::DEPRECATED);
+        }
     }
 
     std::vector<std::string> expected;
diff --git a/src/test/util/setup_common.cpp b/src/test/util/setup_common.cpp
index 9e82eae8..830fca0e 100644
--- a/src/test/util/setup_common.cpp
+++ b/src/test/util/setup_common.cpp
@@ -165,7 +165,6 @@ BasicTestingSetup::BasicTestingSetup(const ChainType chainType, TestOpts opts)
             "-logthreadnames",
             "-loglevel=trace",
             "-debug",
-            "-debugexclude=libevent",
             "-debugexclude=leveldb",
         },
         opts.extra_args);
diff --git a/test/functional/rpc_misc.py b/test/functional/rpc_misc.py
index 6e4c908d..5cc3a29c 100755
--- a/test/functional/rpc_misc.py
+++ b/test/functional/rpc_misc.py
@@ -120,6 +120,18 @@ class RpcMiscTest(BitcoinTestFramework):
         # Specifying an unknown index name returns an empty result
         assert_equal(node.getindexinfo("foo"), {})
 
+        # Test a deprecated category
+        node.logging(include=['all'])
+        for category, value in node.logging().items():
+            # Everything True except one...
+            assert_equal(value, category != "libevent")
+        with self.nodes[0].assert_debug_log(["The logging category `libevent` is deprecated"]):
+            node.logging(include=['libevent'])
+        assert_equal(node.logging()['libevent'], False)
+        with self.nodes[0].assert_debug_log(["The logging category `libevent` is deprecated"]):
+            node.logging(exclude=['libevent'])
+        assert_equal(node.logging()['libevent'], False)
+
 
 if __name__ == '__main__':
     RpcMiscTest(__file__).main()
diff --git a/test/functional/test_framework/test_node.py b/test/functional/test_framework/test_node.py
index 77a7fcb4..a7c140a5 100755
--- a/test/functional/test_framework/test_node.py
+++ b/test/functional/test_framework/test_node.py
@@ -142,7 +142,6 @@ class TestNode():
             f"-datadir={self.datadir_path}",
             "-logtimemicros",
             "-debug",
-            "-debugexclude=libevent",
             "-debugexclude=leveldb",
             "-debugexclude=rand",
             "-uacomment=testnode%d" % i,  # required for subversion uniqueness across peers