diff --git a/site/data/3.11/allMetrics.yaml b/site/data/3.11/allMetrics.yaml
index c018b4ba54..673244c844 100644
--- a/site/data/3.11/allMetrics.yaml
+++ b/site/data/3.11/allMetrics.yaml
@@ -2047,6 +2047,70 @@
     This metric tracks the runtime of phase2 of an Agency sync. Phase2 calculates
     what actions to execute given the difference of the local and target state.
 
+- name: arangodb_network_connectivity_failures_coordinators_total
+  introducedIn: "3.11.4"
+  help: |
+    Number of failed connectivity check requests sent to Coordinators.
+  unit: number
+  type: counter
+  category: Network
+  complexity: simple
+  exposedBy:
+    - coordinator
+    - dbserver
+  description: |
+    Number of failed connectivity check requests sent by this instance
+    to Coordinators.
+    The metric will be increased if a cluster-internal connection to a
+    Coordinator cannot be established within 10 seconds. In this case the
+    instance will also log a warning.
+    Connectivity checks run with a configurable frequency, adjustable via
+    the `--cluster.connectivity-check-interval` startup option.
+  
+  troubleshoot: |
+    If this metric keeps increasing permanently or for longer periods, there
+    are likely network connectivity issues or misconfigurations, which can
+    prevent the instance from connecting to every Coordinator in the cluster
+    (potentially connecting to itself). In this case it is advised to check
+    the connectivity manually, and ensure that the instance can make connections
+    to all Coordinators, potentially including itself.
+  
+    If there are temporary network glitches or instance restarts, this metric
+    can also increase. But increases should stop once the network has stabilized
+    and/or instances have restarted successfully.
+
+- name: arangodb_network_connectivity_failures_dbservers_total
+  introducedIn: "3.11.4"
+  help: |
+    Number of failed connectivity check requests sent to DB-Servers.
+  unit: number
+  type: counter
+  category: Network
+  complexity: simple
+  exposedBy:
+    - coordinator
+    - dbserver
+  description: |
+    Number of failed connectivity check requests sent by this instance
+    to DB-Server.
+    The metric will be increased if a cluster-internal connection to a
+    DB-Server cannot be established within 10 seconds. In this case the
+    instance will also log a warning.
+    Connectivity checks run with a configurable frequency, adjustable via
+    the `--cluster.connectivity-check-interval` startup option.
+  
+  troubleshoot: |
+    If this metric keeps increasing permanently or for longer periods, there
+    are likely network connectivity issues or misconfigurations, which can
+    prevent the instance from connecting to every DB-Server in the cluster
+    (potentially connecting to itself). In this case it is advised to check
+    the connectivity manually, and ensure that the instance can make connections
+    to all DB-Servers, potentially including itself.
+  
+    If there are temporary network glitches or instance restarts, this metric
+    can also increase. But increases should stop once the network has stabilized
+    and/or instances have restarted successfully.
+
 - name: arangodb_network_dequeue_duration
   introducedIn: "3.10.6"
   help: |
diff --git a/site/data/3.11/arangobackup.json b/site/data/3.11/arangobackup.json
index 0f69240f13..dcb065342b 100644
--- a/site/data/3.11/arangobackup.json
+++ b/site/data/3.11/arangobackup.json
@@ -1013,7 +1013,7 @@
   },
   "server.authentication" : {
     "category" : "option",
-    "default" : false,
+    "default" : true,
     "deprecatedIn" : null,
     "description" : "Require authentication credentials when connecting (does not affect the server-side authentication settings).",
     "dynamic" : false,
@@ -1080,7 +1080,7 @@
   "server.endpoint" : {
     "category" : "option",
     "default" : [
-      "http+tcp://127.0.0.1:8529"
+      "tcp://127.0.0.1:8529"
     ],
     "deprecatedIn" : null,
     "description" : "The endpoint to connect to. Use 'none' to start without a server. Use http+ssl:// as schema to connect to an SSL-secured server endpoint, otherwise http+tcp:// or unix://",
diff --git a/site/data/3.11/arangobench.json b/site/data/3.11/arangobench.json
index 0b90e97cf5..d7c2ce7638 100644
--- a/site/data/3.11/arangobench.json
+++ b/site/data/3.11/arangobench.json
@@ -1331,7 +1331,7 @@
   },
   "server.authentication" : {
     "category" : "option",
-    "default" : false,
+    "default" : true,
     "deprecatedIn" : null,
     "description" : "Require authentication credentials when connecting (does not affect the server-side authentication settings).",
     "dynamic" : false,
@@ -1398,7 +1398,7 @@
   "server.endpoint" : {
     "category" : "option",
     "default" : [
-      "http+tcp://127.0.0.1:8529"
+      "tcp://127.0.0.1:8529"
     ],
     "deprecatedIn" : null,
     "description" : "The endpoint to connect to. Use 'none' to start without a server. Use http+ssl:// as schema to connect to an SSL-secured server endpoint, otherwise http+tcp:// or unix://",
diff --git a/site/data/3.11/arangod.json b/site/data/3.11/arangod.json
index 7f9a2f233d..48ea56fd96 100644
--- a/site/data/3.11/arangod.json
+++ b/site/data/3.11/arangod.json
@@ -1070,6 +1070,38 @@
     "section" : "backup",
     "type" : "string"
   },
+  "backup.number-parallel-remote-copies" : {
+    "base" : 1,
+    "category" : "option",
+    "component" : [
+      "dbserver",
+      "single"
+    ],
+    "default" : 0,
+    "deprecatedIn" : null,
+    "description" : "The number of remote-to-remote copy operations to run in parallel when uploading/downloading Hot Backups (0 = use system-specific default of 100)",
+    "dynamic" : true,
+    "enterpriseOnly" : true,
+    "experimental" : false,
+    "hidden" : false,
+    "introducedIn" : [
+      "v3.11.4"
+    ],
+    "longDescription" : "This is to speed up the incremental upload process. Note that each instance needs approx. 7 to 10 MB of RAM in addition to `arangod`. The default should normally be OK for most situations.",
+    "maxInclusive" : true,
+    "maxValue" : 4294967295,
+    "minInclusive" : true,
+    "minValue" : 0,
+    "obsolete" : false,
+    "os" : [
+      "linux",
+      "macos",
+      "windows"
+    ],
+    "requiresValue" : true,
+    "section" : "backup",
+    "type" : "uint32"
+  },
   "cache.acceleration-factor-for-edge-compression" : {
     "base" : 1,
     "category" : "option",
@@ -1403,6 +1435,38 @@
     "type" : "string",
     "values" : "Possible values: \"jwt-all\", \"jwt-compat\", \"jwt-write\""
   },
+  "cluster.connectivity-check-interval" : {
+    "base" : 1,
+    "category" : "option",
+    "component" : [
+      "coordinator",
+      "dbserver"
+    ],
+    "default" : 3600,
+    "deprecatedIn" : null,
+    "description" : "The interval (in seconds) in which cluster-internal connectivity checks are performed.",
+    "dynamic" : false,
+    "enterpriseOnly" : false,
+    "experimental" : false,
+    "hidden" : false,
+    "introducedIn" : [
+      "v3.11.4"
+    ],
+    "longDescription" : "Setting this option to a value greater than\nzero makes Coordinators and DB-Servers run period connectivity checks\nwith approximately the specified frequency. The first connectivity check\nis carried out approximately 15 seconds after server start.\nNote that a random delay is added to the interval on each server, so that\ndifferent servers do not execute their connectivity checks all at the\nsame time.\nSetting this option to a value of zero disables these connectivity checks.\"",
+    "maxInclusive" : true,
+    "maxValue" : 4294967295,
+    "minInclusive" : true,
+    "minValue" : 0,
+    "obsolete" : false,
+    "os" : [
+      "linux",
+      "macos",
+      "windows"
+    ],
+    "requiresValue" : true,
+    "section" : "cluster",
+    "type" : "uint32"
+  },
   "cluster.create-waits-for-sync-replication" : {
     "category" : "option",
     "component" : [
@@ -2217,7 +2281,7 @@
       "agent",
       "single"
     ],
-    "default" : "",
+    "default" : "/var/lib/arangodb3",
     "deprecatedIn" : null,
     "description" : "The path to the database directory.",
     "dynamic" : false,
@@ -3297,7 +3361,7 @@
       "coordinator",
       "single"
     ],
-    "default" : "./js/apps",
+    "default" : "/var/lib/arangodb3-apps",
     "deprecatedIn" : null,
     "description" : "The directory for Foxx applications.",
     "dynamic" : false,
@@ -3595,7 +3659,6 @@
       "single"
     ],
     "default" : [
-      "./enterprise/js"
     ],
     "deprecatedIn" : null,
     "description" : "Additional paths containing JavaScript modules.",
@@ -3674,7 +3737,7 @@
       "coordinator",
       "single"
     ],
-    "default" : "./js",
+    "default" : "/usr/share/arangodb3/js",
     "deprecatedIn" : null,
     "description" : "A path to the directory containing the JavaScript startup scripts.",
     "dynamic" : false,
@@ -6064,7 +6127,7 @@
       "agent",
       "single"
     ],
-    "default" : "",
+    "default" : "-",
     "deprecatedIn" : null,
     "description" : "shortcut for '--log.output file://<filename>'",
     "dynamic" : false,
@@ -8192,99 +8255,6 @@
     "section" : "rclone",
     "type" : "string"
   },
-  "replicated-log.threshold-log-compaction" : {
-    "base" : 1,
-    "category" : "option",
-    "component" : [
-      "coordinator",
-      "dbserver",
-      "agent",
-      "single"
-    ],
-    "default" : 1000,
-    "deprecatedIn" : null,
-    "description" : "threshold for log compaction. Number of log entries to wait for before compacting.",
-    "dynamic" : false,
-    "enterpriseOnly" : false,
-    "experimental" : false,
-    "hidden" : false,
-    "introducedIn" : null,
-    "maxInclusive" : true,
-    "maxValue" : 18446744073709551615,
-    "minInclusive" : true,
-    "minValue" : 0,
-    "obsolete" : false,
-    "os" : [
-      "linux",
-      "macos",
-      "windows"
-    ],
-    "requiresValue" : true,
-    "section" : "replicated-log",
-    "type" : "uint64"
-  },
-  "replicated-log.threshold-network-batch-size" : {
-    "base" : 1,
-    "category" : "option",
-    "component" : [
-      "coordinator",
-      "dbserver",
-      "agent",
-      "single"
-    ],
-    "default" : 1048576,
-    "deprecatedIn" : null,
-    "description" : "send a batch of log updates early when threshold (in bytes) is exceeded",
-    "dynamic" : false,
-    "enterpriseOnly" : false,
-    "experimental" : false,
-    "hidden" : false,
-    "introducedIn" : null,
-    "maxInclusive" : true,
-    "maxValue" : 18446744073709551615,
-    "minInclusive" : true,
-    "minValue" : 1048576,
-    "obsolete" : false,
-    "os" : [
-      "linux",
-      "macos",
-      "windows"
-    ],
-    "requiresValue" : true,
-    "section" : "replicated-log",
-    "type" : "uint64"
-  },
-  "replicated-log.threshold-rocksdb-write-batch-size" : {
-    "base" : 1,
-    "category" : "option",
-    "component" : [
-      "coordinator",
-      "dbserver",
-      "agent",
-      "single"
-    ],
-    "default" : 1048576,
-    "deprecatedIn" : null,
-    "description" : "write a batch of log updates to RocksDB early when threshold (in bytes) is exceeded",
-    "dynamic" : false,
-    "enterpriseOnly" : false,
-    "experimental" : false,
-    "hidden" : false,
-    "introducedIn" : null,
-    "maxInclusive" : true,
-    "maxValue" : 18446744073709551615,
-    "minInclusive" : true,
-    "minValue" : 1048576,
-    "obsolete" : false,
-    "os" : [
-      "linux",
-      "macos",
-      "windows"
-    ],
-    "requiresValue" : true,
-    "section" : "replicated-log",
-    "type" : "uint64"
-  },
   "replication.active-failover" : {
     "category" : "option",
     "component" : [
@@ -9713,35 +9683,6 @@
     "section" : "rocksdb",
     "type" : "boolean"
   },
-  "rocksdb.force-legacy-little-endian-keys" : {
-    "category" : "option",
-    "component" : [
-      "dbserver",
-      "agent",
-      "single"
-    ],
-    "default" : false,
-    "deprecatedIn" : null,
-    "description" : "Force usage of legacy little endian key encoding when creating a new RocksDB database directory. DO NOT USE IN PRODUCTION.",
-    "dynamic" : false,
-    "enterpriseOnly" : false,
-    "experimental" : true,
-    "hidden" : true,
-    "introducedIn" : [
-      "v3.11.4"
-    ],
-    "longDescription" : "If enabled and a new RocksDB database\nis generated, the legacy little endian key encoding is used.\n\nOnly use this option for testing purposes! It is bad for performance and\ndisables a few features like parallel index generation!",
-    "obsolete" : false,
-    "os" : [
-      "linux",
-      "macos",
-      "windows"
-    ],
-    "required" : false,
-    "requiresValue" : false,
-    "section" : "rocksdb",
-    "type" : "boolean"
-  },
   "rocksdb.format-version" : {
     "base" : 1,
     "category" : "option",
@@ -12164,7 +12105,7 @@
       "agent",
       "single"
     ],
-    "default" : 10,
+    "default" : 0,
     "deprecatedIn" : null,
     "description" : "Cluster metrics polling timeout (in seconds).",
     "dynamic" : false,
@@ -12395,33 +12336,6 @@
     "section" : "server",
     "type" : "boolean"
   },
-  "server.failure-point" : {
-    "category" : "option",
-    "component" : [
-      "coordinator",
-      "dbserver",
-      "agent",
-      "single"
-    ],
-    "default" : [
-    ],
-    "deprecatedIn" : null,
-    "description" : "The failure point to set during server startup (requires compilation with failure points support).",
-    "dynamic" : false,
-    "enterpriseOnly" : false,
-    "experimental" : false,
-    "hidden" : true,
-    "introducedIn" : null,
-    "obsolete" : false,
-    "os" : [
-      "linux",
-      "macos",
-      "windows"
-    ],
-    "requiresValue" : true,
-    "section" : "server",
-    "type" : "string..."
-  },
   "server.gid" : {
     "category" : "option",
     "component" : [
@@ -13166,7 +13080,7 @@
       "dbserver",
       "single"
     ],
-    "default" : false,
+    "default" : true,
     "deprecatedIn" : null,
     "description" : "Whether to enable the telemetrics API.",
     "dynamic" : false,
diff --git a/site/data/3.11/arangodump.json b/site/data/3.11/arangodump.json
index d38c01d30e..f2ec718c23 100644
--- a/site/data/3.11/arangodump.json
+++ b/site/data/3.11/arangodump.json
@@ -1285,7 +1285,7 @@
   },
   "server.authentication" : {
     "category" : "option",
-    "default" : false,
+    "default" : true,
     "deprecatedIn" : null,
     "description" : "Require authentication credentials when connecting (does not affect the server-side authentication settings).",
     "dynamic" : false,
@@ -1352,7 +1352,7 @@
   "server.endpoint" : {
     "category" : "option",
     "default" : [
-      "http+tcp://127.0.0.1:8529"
+      "tcp://127.0.0.1:8529"
     ],
     "deprecatedIn" : null,
     "description" : "The endpoint to connect to. Use 'none' to start without a server. Use http+ssl:// as schema to connect to an SSL-secured server endpoint, otherwise http+tcp:// or unix://",
diff --git a/site/data/3.11/arangoexport.json b/site/data/3.11/arangoexport.json
index 443a69fbac..2ada789ada 100644
--- a/site/data/3.11/arangoexport.json
+++ b/site/data/3.11/arangoexport.json
@@ -1110,7 +1110,7 @@
   },
   "server.authentication" : {
     "category" : "option",
-    "default" : false,
+    "default" : true,
     "deprecatedIn" : null,
     "description" : "Require authentication credentials when connecting (does not affect the server-side authentication settings).",
     "dynamic" : false,
@@ -1177,7 +1177,7 @@
   "server.endpoint" : {
     "category" : "option",
     "default" : [
-      "http+tcp://127.0.0.1:8529"
+      "tcp://127.0.0.1:8529"
     ],
     "deprecatedIn" : null,
     "description" : "The endpoint to connect to. Use 'none' to start without a server. Use http+ssl:// as schema to connect to an SSL-secured server endpoint, otherwise http+tcp:// or unix://",
diff --git a/site/data/3.11/arangoimport.json b/site/data/3.11/arangoimport.json
index fc610b1025..aff41caafc 100644
--- a/site/data/3.11/arangoimport.json
+++ b/site/data/3.11/arangoimport.json
@@ -1290,7 +1290,7 @@
   },
   "server.authentication" : {
     "category" : "option",
-    "default" : false,
+    "default" : true,
     "deprecatedIn" : null,
     "description" : "Require authentication credentials when connecting (does not affect the server-side authentication settings).",
     "dynamic" : false,
@@ -1357,7 +1357,7 @@
   "server.endpoint" : {
     "category" : "option",
     "default" : [
-      "http+tcp://127.0.0.1:8529"
+      "tcp://127.0.0.1:8529"
     ],
     "deprecatedIn" : null,
     "description" : "The endpoint to connect to. Use 'none' to start without a server. Use http+ssl:// as schema to connect to an SSL-secured server endpoint, otherwise http+tcp:// or unix://",
diff --git a/site/data/3.11/arangoinspect.json b/site/data/3.11/arangoinspect.json
index 7945f3ad2d..15244af2cf 100644
--- a/site/data/3.11/arangoinspect.json
+++ b/site/data/3.11/arangoinspect.json
@@ -18,27 +18,6 @@
     "section" : "",
     "type" : "boolean"
   },
-  "client.failure-points" : {
-    "category" : "option",
-    "default" : [
-    ],
-    "deprecatedIn" : null,
-    "description" : "The failure point to set during shell startup (requires compilation with failure points support).",
-    "dynamic" : false,
-    "enterpriseOnly" : false,
-    "experimental" : false,
-    "hidden" : false,
-    "introducedIn" : null,
-    "obsolete" : false,
-    "os" : [
-      "linux",
-      "macos",
-      "windows"
-    ],
-    "requiresValue" : true,
-    "section" : "client",
-    "type" : "string..."
-  },
   "config" : {
     "category" : "option",
     "default" : "",
@@ -791,51 +770,9 @@
     "section" : "javascript",
     "type" : "string..."
   },
-  "javascript.run-main" : {
-    "category" : "option",
-    "default" : false,
-    "deprecatedIn" : null,
-    "description" : "Execute main function.",
-    "dynamic" : false,
-    "enterpriseOnly" : false,
-    "experimental" : false,
-    "hidden" : false,
-    "introducedIn" : null,
-    "obsolete" : false,
-    "os" : [
-      "linux",
-      "macos",
-      "windows"
-    ],
-    "required" : false,
-    "requiresValue" : false,
-    "section" : "javascript",
-    "type" : "boolean"
-  },
-  "javascript.script-parameter" : {
-    "category" : "option",
-    "default" : [
-    ],
-    "deprecatedIn" : null,
-    "description" : "Script parameter.",
-    "dynamic" : false,
-    "enterpriseOnly" : false,
-    "experimental" : false,
-    "hidden" : false,
-    "introducedIn" : null,
-    "obsolete" : false,
-    "os" : [
-      "linux",
-      "macos",
-      "windows"
-    ],
-    "requiresValue" : true,
-    "section" : "javascript",
-    "type" : "string..."
-  },
   "javascript.startup-directory" : {
     "category" : "option",
-    "default" : "./js",
+    "default" : "/usr/share/arangodb3/js",
     "deprecatedIn" : null,
     "description" : "The startup paths containing the JavaScript files.",
     "dynamic" : false,
@@ -1780,7 +1717,7 @@
   "server.endpoint" : {
     "category" : "option",
     "default" : [
-      "http+tcp://127.0.0.1:8529"
+      "tcp://127.0.0.1:8529"
     ],
     "deprecatedIn" : null,
     "description" : "The endpoint to connect to. Use 'none' to start without a server. Use http+ssl:// as schema to connect to an SSL-secured server endpoint, otherwise http+tcp:// or unix://",
diff --git a/site/data/3.11/arangorestore.json b/site/data/3.11/arangorestore.json
index 846cc0e3ab..dafbf5ed9a 100644
--- a/site/data/3.11/arangorestore.json
+++ b/site/data/3.11/arangorestore.json
@@ -417,27 +417,6 @@
     "section" : "",
     "type" : "boolean"
   },
-  "fail-after-update-continue-file" : {
-    "category" : "option",
-    "default" : false,
-    "deprecatedIn" : null,
-    "description" : "",
-    "dynamic" : false,
-    "enterpriseOnly" : false,
-    "experimental" : false,
-    "hidden" : true,
-    "introducedIn" : null,
-    "obsolete" : false,
-    "os" : [
-      "linux",
-      "macos",
-      "windows"
-    ],
-    "required" : false,
-    "requiresValue" : false,
-    "section" : "",
-    "type" : "boolean"
-  },
   "force" : {
     "category" : "option",
     "default" : false,
@@ -1365,7 +1344,7 @@
   },
   "server.authentication" : {
     "category" : "option",
-    "default" : false,
+    "default" : true,
     "deprecatedIn" : null,
     "description" : "Require authentication credentials when connecting (does not affect the server-side authentication settings).",
     "dynamic" : false,
@@ -1432,7 +1411,7 @@
   "server.endpoint" : {
     "category" : "option",
     "default" : [
-      "http+tcp://127.0.0.1:8529"
+      "tcp://127.0.0.1:8529"
     ],
     "deprecatedIn" : null,
     "description" : "The endpoint to connect to. Use 'none' to start without a server. Use http+ssl:// as schema to connect to an SSL-secured server endpoint, otherwise http+tcp:// or unix://",
diff --git a/site/data/3.11/arangosh.json b/site/data/3.11/arangosh.json
index f48f6d0181..7bdb3b29bf 100644
--- a/site/data/3.11/arangosh.json
+++ b/site/data/3.11/arangosh.json
@@ -18,27 +18,6 @@
     "section" : "",
     "type" : "boolean"
   },
-  "client.failure-points" : {
-    "category" : "option",
-    "default" : [
-    ],
-    "deprecatedIn" : null,
-    "description" : "The failure point to set during shell startup (requires compilation with failure points support).",
-    "dynamic" : false,
-    "enterpriseOnly" : false,
-    "experimental" : false,
-    "hidden" : false,
-    "introducedIn" : null,
-    "obsolete" : false,
-    "os" : [
-      "linux",
-      "macos",
-      "windows"
-    ],
-    "requiresValue" : true,
-    "section" : "client",
-    "type" : "string..."
-  },
   "config" : {
     "category" : "option",
     "default" : "",
@@ -418,7 +397,7 @@
   },
   "javascript.allow-external-process-control" : {
     "category" : "option",
-    "default" : true,
+    "default" : false,
     "deprecatedIn" : null,
     "description" : "Allow the execution and control of external processes from within JavaScript actions.",
     "dynamic" : false,
@@ -441,7 +420,7 @@
   },
   "javascript.allow-port-testing" : {
     "category" : "option",
-    "default" : true,
+    "default" : false,
     "deprecatedIn" : null,
     "description" : "Allow the testing of ports from within JavaScript actions.",
     "dynamic" : false,
@@ -773,7 +752,6 @@
   "javascript.module-directory" : {
     "category" : "option",
     "default" : [
-      "./enterprise/js"
     ],
     "deprecatedIn" : null,
     "description" : "Additional paths containing JavaScript modules.",
@@ -792,51 +770,9 @@
     "section" : "javascript",
     "type" : "string..."
   },
-  "javascript.run-main" : {
-    "category" : "option",
-    "default" : false,
-    "deprecatedIn" : null,
-    "description" : "Execute main function.",
-    "dynamic" : false,
-    "enterpriseOnly" : false,
-    "experimental" : false,
-    "hidden" : false,
-    "introducedIn" : null,
-    "obsolete" : false,
-    "os" : [
-      "linux",
-      "macos",
-      "windows"
-    ],
-    "required" : false,
-    "requiresValue" : false,
-    "section" : "javascript",
-    "type" : "boolean"
-  },
-  "javascript.script-parameter" : {
-    "category" : "option",
-    "default" : [
-    ],
-    "deprecatedIn" : null,
-    "description" : "Script parameter.",
-    "dynamic" : false,
-    "enterpriseOnly" : false,
-    "experimental" : false,
-    "hidden" : false,
-    "introducedIn" : null,
-    "obsolete" : false,
-    "os" : [
-      "linux",
-      "macos",
-      "windows"
-    ],
-    "requiresValue" : true,
-    "section" : "javascript",
-    "type" : "string..."
-  },
   "javascript.startup-directory" : {
     "category" : "option",
-    "default" : "./js",
+    "default" : "/usr/share/arangodb3/js",
     "deprecatedIn" : null,
     "description" : "The startup paths containing the JavaScript files.",
     "dynamic" : false,
@@ -1714,7 +1650,7 @@
   },
   "server.authentication" : {
     "category" : "option",
-    "default" : false,
+    "default" : true,
     "deprecatedIn" : null,
     "description" : "Require authentication credentials when connecting (does not affect the server-side authentication settings).",
     "dynamic" : false,
@@ -1781,7 +1717,7 @@
   "server.endpoint" : {
     "category" : "option",
     "default" : [
-      "http+tcp://127.0.0.1:8529"
+      "tcp://127.0.0.1:8529"
     ],
     "deprecatedIn" : null,
     "description" : "The endpoint to connect to. Use 'none' to start without a server. Use http+ssl:// or vst+ssl:// as schema to connect to an SSL-secured server endpoint, otherwise http+tcp://, vst+tcp:// or unix://.",
diff --git a/site/data/3.12/allMetrics.yaml b/site/data/3.12/allMetrics.yaml
index 1486dd8768..9c5979b2a8 100644
--- a/site/data/3.12/allMetrics.yaml
+++ b/site/data/3.12/allMetrics.yaml
@@ -2214,6 +2214,70 @@
     This metric tracks the runtime of phase2 of an Agency sync. Phase2 calculates
     what actions to execute given the difference of the local and target state.
 
+- name: arangodb_network_connectivity_failures_coordinators_total
+  introducedIn: "3.11.4"
+  help: |
+    Number of failed connectivity check requests sent to Coordinators.
+  unit: number
+  type: counter
+  category: Network
+  complexity: simple
+  exposedBy:
+    - coordinator
+    - dbserver
+  description: |
+    Number of failed connectivity check requests sent by this instance
+    to Coordinators.
+    The metric will be increased if a cluster-internal connection to a
+    Coordinator cannot be established within 10 seconds. In this case the
+    instance will also log a warning.
+    Connectivity checks run with a configurable frequency, adjustable via
+    the `--cluster.connectivity-check-interval` startup option.
+  
+  troubleshoot: |
+    If this metric keeps increasing permanently or for longer periods, there
+    are likely network connectivity issues or misconfigurations, which can
+    prevent the instance from connecting to every Coordinator in the cluster
+    (potentially connecting to itself). In this case it is advised to check
+    the connectivity manually, and ensure that the instance can make connections
+    to all Coordinators, potentially including itself.
+  
+    If there are temporary network glitches or instance restarts, this metric
+    can also increase. But increases should stop once the network has stabilized
+    and/or instances have restarted successfully.
+
+- name: arangodb_network_connectivity_failures_dbservers_total
+  introducedIn: "3.11.4"
+  help: |
+    Number of failed connectivity check requests sent to DB-Servers.
+  unit: number
+  type: counter
+  category: Network
+  complexity: simple
+  exposedBy:
+    - coordinator
+    - dbserver
+  description: |
+    Number of failed connectivity check requests sent by this instance
+    to DB-Server.
+    The metric will be increased if a cluster-internal connection to a
+    DB-Server cannot be established within 10 seconds. In this case the
+    instance will also log a warning.
+    Connectivity checks run with a configurable frequency, adjustable via
+    the `--cluster.connectivity-check-interval` startup option.
+  
+  troubleshoot: |
+    If this metric keeps increasing permanently or for longer periods, there
+    are likely network connectivity issues or misconfigurations, which can
+    prevent the instance from connecting to every DB-Server in the cluster
+    (potentially connecting to itself). In this case it is advised to check
+    the connectivity manually, and ensure that the instance can make connections
+    to all DB-Servers, potentially including itself.
+  
+    If there are temporary network glitches or instance restarts, this metric
+    can also increase. But increases should stop once the network has stabilized
+    and/or instances have restarted successfully.
+
 - name: arangodb_network_dequeue_duration
   introducedIn: "3.10.6"
   help: |
diff --git a/site/data/3.12/optimizer-rules.json b/site/data/3.12/optimizer-rules.json
index 40da0de165..a06694a1bf 100644
--- a/site/data/3.12/optimizer-rules.json
+++ b/site/data/3.12/optimizer-rules.json
@@ -799,7 +799,7 @@
       "clusterOnly": false,
       "canBeDisabled": true,
       "canCreateAdditionalPlans": false,
-      "disabledByDefault": true,
+      "disabledByDefault": false,
       "enterpriseOnly": false
     }
   },