diff --git a/mod/display.php b/mod/display.php
index ef835848e..b53dd3543 100644
--- a/mod/display.php
+++ b/mod/display.php
@@ -99,7 +99,7 @@ function display_init(App $a)
 	}
 
 	if (!empty($_SERVER['HTTP_ACCEPT']) && strstr($_SERVER['HTTP_ACCEPT'], 'application/atom+xml')) {
-		Logger::log('Directly serving XML for uri-id '.$item['uri-id'], Logger::DEBUG);
+		Logger::info('Directly serving XML for uri-id '.$item['uri-id']);
 		displayShowFeed($item['uri-id'], $item['uid'], false);
 	}
 
diff --git a/mod/pubsub.php b/mod/pubsub.php
index 1dfbd0b3d..3727bade9 100644
--- a/mod/pubsub.php
+++ b/mod/pubsub.php
@@ -59,14 +59,14 @@ function pubsub_init(App $a)
 		$hub_challenge = Strings::escapeTags(trim($_GET['hub_challenge'] ?? ''));
 		$hub_verify    = Strings::escapeTags(trim($_GET['hub_verify_token'] ?? ''));
 
-		Logger::log('Subscription from ' . $_SERVER['REMOTE_ADDR'] . ' Mode: ' . $hub_mode . ' Nick: ' . $nick);
-		Logger::log('Data: ' . print_r($_GET,true), Logger::DATA);
+		Logger::notice('Subscription from ' . $_SERVER['REMOTE_ADDR'] . ' Mode: ' . $hub_mode . ' Nick: ' . $nick);
+		Logger::debug('Data: ', ['get' => $_GET]);
 
 		$subscribe = (($hub_mode === 'subscribe') ? 1 : 0);
 
 		$owner = DBA::selectFirst('user', ['uid'], ['nickname' => $nick, 'account_expired' => false, 'account_removed' => false]);
 		if (!DBA::isResult($owner)) {
-			Logger::log('Local account not found: ' . $nick);
+			Logger::notice('Local account not found: ' . $nick);
 			hub_return(false, '');
 		}
 
@@ -78,12 +78,12 @@ function pubsub_init(App $a)
 
 		$contact = DBA::selectFirst('contact', ['id', 'poll'], $condition);
 		if (!DBA::isResult($contact)) {
-			Logger::log('Contact ' . $contact_id . ' not found.');
+			Logger::notice('Contact ' . $contact_id . ' not found.');
 			hub_return(false, '');
 		}
 
 		if (!empty($hub_topic) && !Strings::compareLink($hub_topic, $contact['poll'])) {
-			Logger::log('Hub topic ' . $hub_topic . ' != ' . $contact['poll']);
+			Logger::notice('Hub topic ' . $hub_topic . ' != ' . $contact['poll']);
 			hub_return(false, '');
 		}
 
@@ -91,13 +91,13 @@ function pubsub_init(App $a)
 		// Don't allow outsiders to unsubscribe us.
 
 		if (($hub_mode === 'unsubscribe') && empty($hub_verify)) {
-			Logger::log('Bogus unsubscribe');
+			Logger::notice('Bogus unsubscribe');
 			hub_return(false, '');
 		}
 
 		if (!empty($hub_mode)) {
 			Contact::update(['subhub' => $subscribe], ['id' => $contact['id']]);
-			Logger::log($hub_mode . ' success for contact ' . $contact_id . '.');
+			Logger::notice($hub_mode . ' success for contact ' . $contact_id . '.');
 		}
  		hub_return(true, $hub_challenge);
 	}
@@ -107,8 +107,8 @@ function pubsub_post(App $a)
 {
 	$xml = Network::postdata();
 
-	Logger::log('Feed arrived from ' . $_SERVER['REMOTE_ADDR'] . ' for ' .  DI::args()->getCommand() . ' with user-agent: ' . $_SERVER['HTTP_USER_AGENT']);
-	Logger::log('Data: ' . $xml, Logger::DATA);
+	Logger::info('Feed arrived from ' . $_SERVER['REMOTE_ADDR'] . ' for ' .  DI::args()->getCommand() . ' with user-agent: ' . $_SERVER['HTTP_USER_AGENT']);
+	Logger::debug('Data: ' . $xml);
 
 	$nick       = ((DI::args()->getArgc() > 1) ? Strings::escapeTags(trim(DI::args()->getArgv()[1])) : '');
 	$contact_id = ((DI::args()->getArgc() > 2) ? intval(DI::args()->getArgv()[2])       : 0 );
@@ -126,10 +126,10 @@ function pubsub_post(App $a)
 		if (!empty($author['contact-id'])) {
 			$condition = ['id' => $author['contact-id'], 'uid' => $importer['uid'], 'subhub' => true, 'blocked' => false];
 			$contact = DBA::selectFirst('contact', [], $condition);
-			Logger::log('No record for ' . $nick .' with contact id ' . $contact_id . ' - using '.$author['contact-id'].' instead.');
+			Logger::notice('No record for ' . $nick .' with contact id ' . $contact_id . ' - using '.$author['contact-id'].' instead.');
 		}
 		if (!DBA::isResult($contact)) {
-			Logger::log('Contact ' . $author["author-link"] . ' (' . $contact_id . ') for user ' . $nick . " wasn't found - ignored. XML: " . $xml);
+			Logger::notice('Contact ' . $author["author-link"] . ' (' . $contact_id . ') for user ' . $nick . " wasn't found - ignored. XML: " . $xml);
 			hub_post_return();
 		}
 	}
@@ -139,7 +139,7 @@ function pubsub_post(App $a)
 	}
 
 	if (!in_array($contact['rel'], [Contact::SHARING, Contact::FRIEND]) && ($contact['network'] != Protocol::FEED)) {
-		Logger::log('Contact ' . $contact['id'] . ' is not expected to share with us - ignored.');
+		Logger::notice('Contact ' . $contact['id'] . ' is not expected to share with us - ignored.');
 		hub_post_return();
 	}
 
@@ -149,7 +149,7 @@ function pubsub_post(App $a)
 		hub_post_return();
 	}
 
-	Logger::log('Import item for ' . $nick . ' from ' . $contact['nick'] . ' (' . $contact['id'] . ')');
+	Logger::info('Import item for ' . $nick . ' from ' . $contact['nick'] . ' (' . $contact['id'] . ')');
 	$feedhub = '';
 	OStatus::import($xml, $importer, $contact, $feedhub);
 
diff --git a/mod/pubsubhubbub.php b/mod/pubsubhubbub.php
index bc90c76d6..2cc2394c1 100644
--- a/mod/pubsubhubbub.php
+++ b/mod/pubsubhubbub.php
@@ -60,11 +60,11 @@ function pubsubhubbub_init(App $a) {
 		} elseif ($hub_mode === 'unsubscribe') {
 			$subscribe = 0;
 		} else {
-			Logger::log("Invalid hub_mode=$hub_mode, ignoring.");
+			Logger::notice("Invalid hub_mode=$hub_mode, ignoring.");
 			throw new \Friendica\Network\HTTPException\NotFoundException();
 		}
 
-		Logger::log("$hub_mode request from " . $_SERVER['REMOTE_ADDR']);
+		Logger::info("$hub_mode request from " . $_SERVER['REMOTE_ADDR']);
 
 		if (DI::args()->getArgc() > 1) {
 			// Normally the url should now contain the nick name as last part of the url
@@ -77,7 +77,7 @@ function pubsubhubbub_init(App $a) {
 		$nick = basename($nick, '.atom');
 
 		if (!$nick) {
-			Logger::log('Bad hub_topic=$hub_topic, ignoring.');
+			Logger::notice('Bad hub_topic=$hub_topic, ignoring.');
 			throw new \Friendica\Network\HTTPException\NotFoundException();
 		}
 
@@ -85,7 +85,7 @@ function pubsubhubbub_init(App $a) {
 		$condition = ['nickname' => $nick, 'account_expired' => false, 'account_removed' => false];
 		$owner = DBA::selectFirst('user', ['uid', 'nickname'], $condition);
 		if (!DBA::isResult($owner)) {
-			Logger::log('Local account not found: ' . $nick . ' - topic: ' . $hub_topic . ' - callback: ' . $hub_callback);
+			Logger::notice('Local account not found: ' . $nick . ' - topic: ' . $hub_topic . ' - callback: ' . $hub_callback);
 			throw new \Friendica\Network\HTTPException\NotFoundException();
 		}
 
@@ -94,7 +94,7 @@ function pubsubhubbub_init(App $a) {
 			'pending' => false, 'self' => true];
 		$contact = DBA::selectFirst('contact', ['poll'], $condition);
 		if (!DBA::isResult($contact)) {
-			Logger::log('Self contact for user ' . $owner['uid'] . ' not found.');
+			Logger::notice('Self contact for user ' . $owner['uid'] . ' not found.');
 			throw new \Friendica\Network\HTTPException\NotFoundException();
 		}
 
@@ -103,7 +103,7 @@ function pubsubhubbub_init(App $a) {
 		$self = DI::baseUrl() . '/api/statuses/user_timeline/' . $owner['nickname'] . '.atom';
 
 		if (!Strings::compareLink($hub_topic, $contact['poll']) && !Strings::compareLink($hub_topic2, $contact['poll']) && !Strings::compareLink($hub_topic, $self)) {
-			Logger::log('Hub topic ' . $hub_topic . ' != ' . $contact['poll']);
+			Logger::notice('Hub topic ' . $hub_topic . ' != ' . $contact['poll']);
 			throw new \Friendica\Network\HTTPException\NotFoundException();
 		}
 
@@ -131,14 +131,14 @@ function pubsubhubbub_init(App $a) {
 
 		// give up if the HTTP return code wasn't a success (2xx)
 		if ($ret < 200 || $ret > 299) {
-			Logger::log("Subscriber verification for $hub_topic at $hub_callback returned $ret, ignoring.");
+			Logger::notice("Subscriber verification for $hub_topic at $hub_callback returned $ret, ignoring.");
 			throw new \Friendica\Network\HTTPException\NotFoundException();
 		}
 
 		// check that the correct hub_challenge code was echoed back
 		if (trim($body) !== $hub_challenge) {
-			Logger::log("Subscriber did not echo back hub.challenge, ignoring.");
-			Logger::log("\"$hub_challenge\" != \"".trim($body)."\"");
+			Logger::notice("Subscriber did not echo back hub.challenge, ignoring.");
+			Logger::notice("\"$hub_challenge\" != \"".trim($body)."\"");
 			throw new \Friendica\Network\HTTPException\NotFoundException();
 		}
 
diff --git a/mod/redir.php b/mod/redir.php
index a158f3179..e96a58b63 100644
--- a/mod/redir.php
+++ b/mod/redir.php
@@ -76,7 +76,7 @@ function redir_init(App $a) {
 			// Local user is already authenticated.
 			redir_check_url($contact_url, $url);
 			$target_url = $url ?: $contact_url;
-			Logger::log($contact['name'] . " is already authenticated. Redirecting to " . $target_url, Logger::DEBUG);
+			Logger::info($contact['name'] . " is already authenticated. Redirecting to " . $target_url);
 			$a->redirect($target_url);
 		}
 	}
@@ -93,7 +93,7 @@ function redir_init(App $a) {
 			// Remote user is already authenticated.
 			redir_check_url($contact_url, $url);
 			$target_url = $url ?: $contact_url;
-			Logger::log($contact['name'] . " is already authenticated. Redirecting to " . $target_url, Logger::DEBUG);
+			Logger::info($contact['name'] . " is already authenticated. Redirecting to " . $target_url);
 			$a->redirect($target_url);
 		}
 	}
@@ -112,7 +112,7 @@ function redir_init(App $a) {
 		$url .= $separator . 'zrl=' . urlencode($my_profile);
 	}
 
-	Logger::log('redirecting to ' . $url, Logger::DEBUG);
+	Logger::info('redirecting to ' . $url);
 	$a->redirect($url);
 }
 
diff --git a/mod/wall_upload.php b/mod/wall_upload.php
index f915954f0..38819c9a5 100644
--- a/mod/wall_upload.php
+++ b/mod/wall_upload.php
@@ -38,7 +38,7 @@ use Friendica\Util\Strings;
 
 function wall_upload_post(App $a, $desktopmode = true)
 {
-	Logger::log("wall upload: starting new upload", Logger::DEBUG);
+	Logger::info("wall upload: starting new upload");
 
 	$r_json = (!empty($_GET['response']) && $_GET['response'] == 'json');
 	$album = trim($_GET['album'] ?? '');
@@ -156,8 +156,8 @@ function wall_upload_post(App $a, $desktopmode = true)
 
 	$filetype = Images::getMimeTypeBySource($src, $filename, $filetype);
 
-	Logger::log("File upload src: " . $src . " - filename: " . $filename .
-		" - size: " . $filesize . " - type: " . $filetype, Logger::DEBUG);
+	Logger::info("File upload src: " . $src . " - filename: " . $filename .
+		" - size: " . $filesize . " - type: " . $filetype);
 
 	$imagedata = @file_get_contents($src);
 	$Image = new Image($imagedata, $filetype);
@@ -183,7 +183,7 @@ function wall_upload_post(App $a, $desktopmode = true)
 	if ($max_length > 0) {
 		$Image->scaleDown($max_length);
 		$filesize = strlen($Image->asString());
-		Logger::log("File upload: Scaling picture to new size " . $max_length, Logger::DEBUG);
+		Logger::info("File upload: Scaling picture to new size " . $max_length);
 	}
 
 	$width = $Image->getWidth();
@@ -278,11 +278,11 @@ function wall_upload_post(App $a, $desktopmode = true)
 			echo json_encode(['picture' => $picture]);
 			exit();
 		}
-		Logger::log("upload done", Logger::DEBUG);
+		Logger::info("upload done");
 		return $picture;
 	}
 
-	Logger::log("upload done", Logger::DEBUG);
+	Logger::info("upload done");
 
 	if ($r_json) {
 		echo json_encode(['ok' => true]);
diff --git a/src/BaseModule.php b/src/BaseModule.php
index d7ca5798d..ced1e55c3 100644
--- a/src/BaseModule.php
+++ b/src/BaseModule.php
@@ -183,8 +183,8 @@ abstract class BaseModule
 	public static function checkFormSecurityTokenRedirectOnError($err_redirect, $typename = '', $formname = 'form_security_token')
 	{
 		if (!self::checkFormSecurityToken($typename, $formname)) {
-			Logger::log('checkFormSecurityToken failed: user ' . DI::app()->getLoggedInUserNickname() . ' - form element ' . $typename);
-			Logger::log('checkFormSecurityToken failed: _REQUEST data: ' . print_r($_REQUEST, true), Logger::DATA);
+			Logger::notice('checkFormSecurityToken failed: user ' . DI::app()->getLoggedInUserNickname() . ' - form element ' . $typename);
+			Logger::debug('checkFormSecurityToken failed', ['request' => $_REQUEST]);
 			notice(self::getFormSecurityStandardErrorMessage());
 			DI::baseUrl()->redirect($err_redirect);
 		}
@@ -193,8 +193,8 @@ abstract class BaseModule
 	public static function checkFormSecurityTokenForbiddenOnError($typename = '', $formname = 'form_security_token')
 	{
 		if (!self::checkFormSecurityToken($typename, $formname)) {
-			Logger::log('checkFormSecurityToken failed: user ' . DI::app()->getLoggedInUserNickname() . ' - form element ' . $typename);
-			Logger::log('checkFormSecurityToken failed: _REQUEST data: ' . print_r($_REQUEST, true), Logger::DATA);
+			Logger::notice('checkFormSecurityToken failed: user ' . DI::app()->getLoggedInUserNickname() . ' - form element ' . $typename);
+			Logger::debug('checkFormSecurityToken failed', ['request' => $_REQUEST]);
 
 			throw new \Friendica\Network\HTTPException\ForbiddenException();
 		}
diff --git a/src/Model/Contact.php b/src/Model/Contact.php
index 1221261c8..03cd09fc5 100644
--- a/src/Model/Contact.php
+++ b/src/Model/Contact.php
@@ -2409,7 +2409,7 @@ class Contact
 		}
 
 		if (($network != '') && ($ret['network'] != $network)) {
-			Logger::log('Expected network ' . $network . ' does not match actual network ' . $ret['network']);
+			Logger::notice('Expected network ' . $network . ' does not match actual network ' . $ret['network']);
 			return $result;
 		}
 
@@ -2559,7 +2559,7 @@ class Contact
 				}
 			} elseif ($protocol == Protocol::DIASPORA) {
 				$ret = Diaspora::sendShare($owner, $contact);
-				Logger::log('share returns: ' . $ret);
+				Logger::notice('share returns: ' . $ret);
 			} elseif ($protocol == Protocol::ACTIVITYPUB) {
 				$activity_id = ActivityPub\Transmitter::activityIDFromContact($contact_id);
 				if (empty($activity_id)) {
@@ -2568,7 +2568,7 @@ class Contact
 				}
 
 				$ret = ActivityPub\Transmitter::sendActivity('Follow', $contact['url'], $uid, $activity_id);
-				Logger::log('Follow returns: ' . $ret);
+				Logger::notice('Follow returns: ' . $ret);
 			}
 		}
 
@@ -2686,7 +2686,7 @@ class Contact
 		} else {
 			// send email notification to owner?
 			if (DBA::exists('contact', ['nurl' => Strings::normaliseLink($url), 'uid' => $importer['uid'], 'pending' => true])) {
-				Logger::log('ignoring duplicated connection request from pending contact ' . $url);
+				Logger::notice('ignoring duplicated connection request from pending contact ' . $url);
 				return null;
 			}
 
@@ -2806,7 +2806,7 @@ class Contact
 		$contacts = DBA::select('contact', ['id', 'uid', 'name', 'url', 'bd'], $condition);
 
 		while ($contact = DBA::fetch($contacts)) {
-			Logger::log('update_contact_birthday: ' . $contact['bd']);
+			Logger::notice('update_contact_birthday: ' . $contact['bd']);
 
 			$nextbd = DateTimeFormat::utcNow('Y') . substr($contact['bd'], 4);
 
diff --git a/src/Model/Event.php b/src/Model/Event.php
index b56962424..cb7c39c37 100644
--- a/src/Model/Event.php
+++ b/src/Model/Event.php
@@ -230,7 +230,7 @@ class Event
 		}
 
 		DBA::delete('event', ['id' => $event_id]);
-		Logger::log("Deleted event ".$event_id, Logger::DEBUG);
+		Logger::info("Deleted event", ['id' => $event_id]);
 	}
 
 	/**
diff --git a/src/Model/Item.php b/src/Model/Item.php
index 285187e5f..297506176 100644
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@@ -971,7 +971,7 @@ class Item
 		}
 
 		if (!empty($item['cancel'])) {
-			Logger::log('post cancelled by addon.');
+			Logger::notice('post cancelled by addon.');
 			return 0;
 		}
 
@@ -1885,7 +1885,7 @@ class Item
 			foreach ($matches as $mtch) {
 				if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
 					$mention = true;
-					Logger::log('mention found: ' . $mtch[2]);
+					Logger::notice('mention found', ['mention' => $mtch[2]]);
 				}
 			}
 		}
@@ -2305,7 +2305,7 @@ class Item
 			++$expired;
 		}
 		DBA::close($items);
-		Logger::log('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
+		Logger::notice('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
 	}
 
 	public static function firstPostDate($uid, $wall = false)
@@ -2354,7 +2354,7 @@ class Item
 
 		$item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
 		if (!DBA::isResult($item)) {
-			Logger::log('like: unknown item ' . $item_id);
+			Logger::notice('like: unknown item', ['id' => $item_id]);
 			return false;
 		}
 
diff --git a/src/Model/Mail.php b/src/Model/Mail.php
index f9c197ffa..7cd836610 100644
--- a/src/Model/Mail.php
+++ b/src/Model/Mail.php
@@ -187,7 +187,7 @@ class Mail
 		}
 
 		if (!$convid) {
-			Logger::log('send message: conversation not found.');
+			Logger::notice('send message: conversation not found.');
 			return -4;
 		}
 
@@ -291,7 +291,7 @@ class Mail
 		}
 
 		if (!$convid) {
-			Logger::log('send message: conversation not found.');
+			Logger::notice('send message: conversation not found.');
 			return -4;
 		}
 
diff --git a/src/Model/User.php b/src/Model/User.php
index 263bba99c..794494342 100644
--- a/src/Model/User.php
+++ b/src/Model/User.php
@@ -1517,7 +1517,7 @@ class User
 			return false;
 		}
 
-		Logger::log('Removing user: ' . $uid);
+		Logger::notice('Removing user', ['user' => $uid]);
 
 		$user = DBA::selectFirst('user', [], ['uid' => $uid]);
 
diff --git a/src/Module/Attach.php b/src/Module/Attach.php
index d9a6d9f64..a4bb9b422 100644
--- a/src/Module/Attach.php
+++ b/src/Module/Attach.php
@@ -57,7 +57,7 @@ class Attach extends BaseModule
 
 		$data = MAttach::getData($item);
 		if (is_null($data)) {
-			Logger::log('NULL data for attachment with id ' . $item['id']);
+			Logger::notice('NULL data for attachment with id ' . $item['id']);
 			throw new \Friendica\Network\HTTPException\NotFoundException(DI::l10n()->t('Item was not found.'));
 		}
 
diff --git a/src/Module/Register.php b/src/Module/Register.php
index d93c8754f..e4a417fba 100644
--- a/src/Module/Register.php
+++ b/src/Module/Register.php
@@ -82,7 +82,7 @@ class Register extends BaseModule
 		if ($max_dailies) {
 			$count = DBA::count('user', ['`register_date` > UTC_TIMESTAMP - INTERVAL 1 day']);
 			if ($count >= $max_dailies) {
-				Logger::log('max daily registrations exceeded.');
+				Logger::notice('max daily registrations exceeded.');
 				notice(DI::l10n()->t('This site has exceeded the number of allowed daily account registrations. Please try again tomorrow.'));
 				return '';
 			}
diff --git a/src/Protocol/DFRN.php b/src/Protocol/DFRN.php
index a9918bbd0..ac51e104a 100644
--- a/src/Protocol/DFRN.php
+++ b/src/Protocol/DFRN.php
@@ -929,21 +929,21 @@ class DFRN
 	{
 		if (!$public_batch) {
 			if (empty($contact['addr'])) {
-				Logger::log('Empty contact handle for ' . $contact['id'] . ' - ' . $contact['url'] . ' - trying to update it.');
+				Logger::notice('Empty contact handle for ' . $contact['id'] . ' - ' . $contact['url'] . ' - trying to update it.');
 				if (Contact::updateFromProbe($contact['id'])) {
 					$new_contact = DBA::selectFirst('contact', ['addr'], ['id' => $contact['id']]);
 					$contact['addr'] = $new_contact['addr'];
 				}
 
 				if (empty($contact['addr'])) {
-					Logger::log('Unable to find contact handle for ' . $contact['id'] . ' - ' . $contact['url']);
+					Logger::notice('Unable to find contact handle for ' . $contact['id'] . ' - ' . $contact['url']);
 					return -21;
 				}
 			}
 
 			$fcontact = FContact::getByURL($contact['addr']);
 			if (empty($fcontact)) {
-				Logger::log('Unable to find contact details for ' . $contact['id'] . ' - ' . $contact['addr']);
+				Logger::notice('Unable to find contact details for ' . $contact['id'] . ' - ' . $contact['addr']);
 				return -22;
 			}
 			$pubkey = $fcontact['pubkey'];
@@ -976,7 +976,7 @@ class DFRN
 
 		$curl_stat = $postResult->getReturnCode();
 		if (empty($curl_stat) || empty($xml)) {
-			Logger::log('Empty answer from ' . $contact['id'] . ' - ' . $dest_url);
+			Logger::notice('Empty answer from ' . $contact['id'] . ' - ' . $dest_url);
 			return -9; // timed out
 		}
 
@@ -985,8 +985,8 @@ class DFRN
 		}
 
 		if (strpos($xml, '<?xml') === false) {
-			Logger::log('No valid XML returned from ' . $contact['id'] . ' - ' . $dest_url);
-			Logger::log('Returned XML: ' . $xml, Logger::DATA);
+			Logger::notice('No valid XML returned from ' . $contact['id'] . ' - ' . $dest_url);
+			Logger::debug('Returned XML: ' . $xml);
 			return 3;
 		}
 
@@ -997,7 +997,7 @@ class DFRN
 		}
 
 		if (!empty($res->message)) {
-			Logger::log('Transmit to ' . $dest_url . ' returned status '.$res->status.' - '.$res->message, Logger::DEBUG);
+			Logger::info('Transmit to ' . $dest_url . ' returned status '.$res->status.' - '.$res->message);
 		}
 
 		return intval($res->status);
@@ -1088,12 +1088,12 @@ class DFRN
 		}
 
 		if (empty($author['avatar'])) {
-			Logger::log('Empty author: ' . $xml);
+			Logger::notice('Empty author: ' . $xml);
 			$author['avatar'] = '';
 		}
 
 		if (DBA::isResult($contact_old) && !$onlyfetch) {
-			Logger::log("Check if contact details for contact " . $contact_old["id"] . " (" . $contact_old["nick"] . ") have to be updated.", Logger::DEBUG);
+			Logger::info("Check if contact details for contact " . $contact_old["id"] . " (" . $contact_old["nick"] . ") have to be updated.");
 
 			$poco = ["url" => $contact_old["url"], "network" => $contact_old["network"]];
 
@@ -1154,7 +1154,7 @@ class DFRN
 			// If the "hide" element is present then the profile isn't searchable.
 			$hide = intval(XML::getFirstNodeValue($xpath, $element . "/dfrn:hide/text()", $context) == "true");
 
-			Logger::log("Hidden status for contact " . $contact_old["url"] . ": " . $hide, Logger::DEBUG);
+			Logger::info("Hidden status for contact " . $contact_old["url"] . ": " . $hide);
 
 			// If the contact isn't searchable then set the contact to "hidden".
 			// Problem: This can be manually overridden by the user.
@@ -1295,7 +1295,7 @@ class DFRN
 	 */
 	private static function processMail($xpath, $mail, $importer)
 	{
-		Logger::log("Processing mails");
+		Logger::notice("Processing mails");
 
 		$msg = [];
 		$msg["uid"] = $importer["importer_uid"];
@@ -1400,7 +1400,7 @@ class DFRN
 	 */
 	private static function processRelocation($xpath, $relocation, $importer)
 	{
-		Logger::log("Processing relocations");
+		Logger::notice("Processing relocations");
 
 		/// @TODO Rewrite this to one statement
 		$relocate = [];
@@ -1447,7 +1447,7 @@ class DFRN
 
 		Contact::updateAvatar($importer["id"], $relocate["avatar"], true);
 
-		Logger::log('Contacts are updated.');
+		Logger::notice('Contacts are updated.');
 
 		/// @TODO
 		/// merge with current record, current contents have priority
@@ -1508,7 +1508,7 @@ class DFRN
 			if ($importer["page-flags"] == User::PAGE_FLAGS_COMMUNITY || $importer["page-flags"] == User::PAGE_FLAGS_PRVGROUP) {
 				$sql_extra = "";
 				$community = true;
-				Logger::log("possible community action");
+				Logger::notice("possible community action");
 			} else {
 				$sql_extra = " AND `self` AND `wall`";
 			}
@@ -1528,7 +1528,7 @@ class DFRN
 			 */
 			if ($is_a_remote_action && $community && (!$parent["forum_mode"]) && (!$parent["wall"])) {
 				$is_a_remote_action = false;
-				Logger::log("not a community action");
+				Logger::notice("not a community action");
 			}
 
 			if ($is_a_remote_action) {
@@ -1609,7 +1609,7 @@ class DFRN
 	 */
 	private static function processVerbs($entrytype, $importer, &$item, &$is_like)
 	{
-		Logger::log("Process verb ".$item["verb"]." and object-type ".$item["object-type"]." for entrytype ".$entrytype, Logger::DEBUG);
+		Logger::info("Process verb ".$item["verb"]." and object-type ".$item["object-type"]." for entrytype ".$entrytype);
 
 		if (($entrytype == DFRN::TOP_LEVEL) && !empty($importer['id'])) {
 			// The filling of the the "contact" variable is done for legcy reasons
@@ -1621,22 +1621,22 @@ class DFRN
 			// Big question: Do we need these functions? They were part of the "consume_feed" function.
 			// This function once was responsible for DFRN and OStatus.
 			if ($activity->match($item["verb"], Activity::FOLLOW)) {
-				Logger::log("New follower");
+				Logger::notice("New follower");
 				Contact::addRelationship($importer, $contact, $item);
 				return false;
 			}
 			if ($activity->match($item["verb"], Activity::UNFOLLOW)) {
-				Logger::log("Lost follower");
+				Logger::notice("Lost follower");
 				Contact::removeFollower($contact);
 				return false;
 			}
 			if ($activity->match($item["verb"], Activity::REQ_FRIEND)) {
-				Logger::log("New friend request");
+				Logger::notice("New friend request");
 				Contact::addRelationship($importer, $contact, $item, true);
 				return false;
 			}
 			if ($activity->match($item["verb"], Activity::UNFRIEND)) {
-				Logger::log("Lost sharer");
+				Logger::notice("Lost sharer");
 				Contact::removeSharer($importer, $contact, $item);
 				return false;
 			}
@@ -1681,7 +1681,7 @@ class DFRN
 					$item_tag = Post::selectFirst(['id', 'uri-id'], ['uri' => $xt->id, 'uid' => $importer["importer_uid"]]);
 
 					if (!DBA::isResult($item_tag)) {
-						Logger::log("Query failed to execute, no result returned in " . __FUNCTION__);
+						Logger::notice("Query failed to execute, no result returned in " . __FUNCTION__);
 						return false;
 					}
 
@@ -1768,7 +1768,7 @@ class DFRN
 	 */
 	private static function processEntry($header, $xpath, $entry, $importer, $xml, $protocol)
 	{
-		Logger::log("Processing entries");
+		Logger::notice("Processing entries");
 
 		$item = $header;
 
@@ -1786,7 +1786,7 @@ class DFRN
 		);
 		// Is there an existing item?
 		if (DBA::isResult($current) && !self::isEditedTimestampNewer($current, $item)) {
-			Logger::log("Item ".$item["uri"]." (".$item['edited'].") already existed.", Logger::DEBUG);
+			Logger::info("Item ".$item["uri"]." (".$item['edited'].") already existed.");
 			return;
 		}
 
@@ -1996,10 +1996,10 @@ class DFRN
 
 			// Is it an event?
 			if (($item["object-type"] == Activity\ObjectType::EVENT) && !$owner_unknown) {
-				Logger::log("Item ".$item["uri"]." seems to contain an event.", Logger::DEBUG);
+				Logger::info("Item ".$item["uri"]." seems to contain an event.");
 				$ev = Event::fromBBCode($item["body"]);
 				if ((!empty($ev['desc']) || !empty($ev['summary'])) && !empty($ev['start'])) {
-					Logger::log("Event in item ".$item["uri"]." was found.", Logger::DEBUG);
+					Logger::info("Event in item ".$item["uri"]." was found.");
 					$ev["cid"]       = $importer["id"];
 					$ev["uid"]       = $importer["importer_uid"];
 					$ev["uri"]       = $item["uri"];
@@ -2027,13 +2027,13 @@ class DFRN
 		}
 
 		if (!self::processVerbs($entrytype, $importer, $item, $is_like)) {
-			Logger::log("Exiting because 'processVerbs' told us so", Logger::DEBUG);
+			Logger::info("Exiting because 'processVerbs' told us so");
 			return;
 		}
 
 		// This check is done here to be able to receive connection requests in "processVerbs"
 		if (($entrytype == DFRN::TOP_LEVEL) && $owner_unknown) {
-			Logger::log("Item won't be stored because user " . $importer["importer_uid"] . " doesn't follow " . $item["owner-link"] . ".", Logger::DEBUG);
+			Logger::info("Item won't be stored because user " . $importer["importer_uid"] . " doesn't follow " . $item["owner-link"] . ".");
 			return;
 		}
 
@@ -2041,9 +2041,9 @@ class DFRN
 		// Update content if 'updated' changes
 		if (DBA::isResult($current)) {
 			if (self::updateContent($current, $item, $importer, $entrytype)) {
-				Logger::log("Item ".$item["uri"]." was updated.", Logger::DEBUG);
+				Logger::info("Item ".$item["uri"]." was updated.");
 			} else {
-				Logger::log("Item " . $item["uri"] . " already existed.", Logger::DEBUG);
+				Logger::info("Item " . $item["uri"] . " already existed.");
 			}
 			return;
 		}
@@ -2056,7 +2056,7 @@ class DFRN
 
 			$posted_id = Item::insert($item);
 			if ($posted_id) {
-				Logger::log("Reply from contact ".$item["contact-id"]." was stored with id ".$posted_id, Logger::DEBUG);
+				Logger::info("Reply from contact ".$item["contact-id"]." was stored with id ".$posted_id);
 
 				if ($item['uid'] == 0) {
 					Item::distribute($posted_id);
@@ -2066,7 +2066,7 @@ class DFRN
 			}
 		} else { // $entrytype == DFRN::TOP_LEVEL
 			if (($importer["uid"] == 0) && ($importer["importer_uid"] != 0)) {
-				Logger::log("Contact ".$importer["id"]." isn't known to user ".$importer["importer_uid"].". The post will be ignored.", Logger::DEBUG);
+				Logger::info("Contact ".$importer["id"]." isn't known to user ".$importer["importer_uid"].". The post will be ignored.");
 				return;
 			}
 			if (!Strings::compareLink($item["owner-link"], $importer["url"])) {
@@ -2076,13 +2076,13 @@ class DFRN
 				 * the tgroup delivery code called from Item::insert will correct it if it's a forum,
 				 * but we're going to unconditionally correct it here so that the post will always be owned by our contact.
 				 */
-				Logger::log('Correcting item owner.', Logger::DEBUG);
+				Logger::info('Correcting item owner.');
 				$item["owner-link"] = $importer["url"];
 				$item["owner-id"] = Contact::getIdForURL($importer["url"], 0);
 			}
 
 			if (($importer["rel"] == Contact::FOLLOWER) && (!self::tgroupCheck($importer["importer_uid"], $item))) {
-				Logger::log("Contact ".$importer["id"]." is only follower and tgroup check was negative.", Logger::DEBUG);
+				Logger::info("Contact ".$importer["id"]." is only follower and tgroup check was negative.");
 				return;
 			}
 
@@ -2096,7 +2096,7 @@ class DFRN
 				$posted_id = $notify;
 			}
 
-			Logger::log("Item was stored with id ".$posted_id, Logger::DEBUG);
+			Logger::info("Item was stored with id ".$posted_id);
 
 			if ($item['uid'] == 0) {
 				Item::distribute($posted_id);
@@ -2121,7 +2121,7 @@ class DFRN
 	 */
 	private static function processDeletion($xpath, $deletion, $importer)
 	{
-		Logger::log("Processing deletions");
+		Logger::notice("Processing deletions");
 		$uri = null;
 
 		foreach ($deletion->attributes as $attributes) {
@@ -2137,7 +2137,7 @@ class DFRN
 		$condition = ['uri' => $uri, 'uid' => $importer["importer_uid"]];
 		$item = Post::selectFirst(['id', 'parent', 'contact-id', 'uri-id', 'deleted', 'gravity'], $condition);
 		if (!DBA::isResult($item)) {
-			Logger::log("Item with uri " . $uri . " for user " . $importer["importer_uid"] . " wasn't found.", Logger::DEBUG);
+			Logger::info("Item with uri " . $uri . " for user " . $importer["importer_uid"] . " wasn't found.");
 			return;
 		}
 
@@ -2148,7 +2148,7 @@ class DFRN
 
 		// When it is a starting post it has to belong to the person that wants to delete it
 		if (($item['gravity'] == GRAVITY_PARENT) && ($item['contact-id'] != $importer["id"])) {
-			Logger::log("Item with uri " . $uri . " don't belong to contact " . $importer["id"] . " - ignoring deletion.", Logger::DEBUG);
+			Logger::info("Item with uri " . $uri . " don't belong to contact " . $importer["id"] . " - ignoring deletion.");
 			return;
 		}
 
@@ -2156,7 +2156,7 @@ class DFRN
 		if (($item['gravity'] != GRAVITY_PARENT) && ($item['contact-id'] != $importer["id"])) {
 			$condition = ['id' => $item['parent'], 'contact-id' => $importer["id"]];
 			if (!Post::exists($condition)) {
-				Logger::log("Item with uri " . $uri . " wasn't found or mustn't be deleted by contact " . $importer["id"] . " - ignoring deletion.", Logger::DEBUG);
+				Logger::info("Item with uri " . $uri . " wasn't found or mustn't be deleted by contact " . $importer["id"] . " - ignoring deletion.");
 				return;
 			}
 		}
@@ -2165,7 +2165,7 @@ class DFRN
 			return;
 		}
 
-		Logger::log('deleting item '.$item['id'].' uri='.$uri, Logger::DEBUG);
+		Logger::info('deleting item '.$item['id'].' uri='.$uri);
 
 		Item::markForDeletion(['id' => $item['id']]);
 	}
@@ -2227,7 +2227,7 @@ class DFRN
 			self::fetchauthor($xpath, $doc->firstChild, $importer, "dfrn:owner", false, $xml);
 		}
 
-		Logger::log("Import DFRN message for user " . $importer["importer_uid"] . " from contact " . $importer["id"], Logger::DEBUG);
+		Logger::info("Import DFRN message for user " . $importer["importer_uid"] . " from contact " . $importer["id"]);
 
 		if (!empty($importer['gsid']) && ($protocol == Conversation::PARCEL_DIASPORA_DFRN)) {
 			GServer::setProtocol($importer['gsid'], Post\DeliveryData::DFRN);
@@ -2310,7 +2310,7 @@ class DFRN
 			self::processEntry($header, $xpath, $entry, $importer, $xml, $protocol);
 		}
 
-		Logger::log("Import done for user " . $importer["importer_uid"] . " from contact " . $importer["id"], Logger::DEBUG);
+		Logger::info("Import done for user " . $importer["importer_uid"] . " from contact " . $importer["id"]);
 		return 200;
 	}
 
@@ -2360,7 +2360,7 @@ class DFRN
 			foreach ($matches as $mtch) {
 				if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
 					$mention = true;
-					Logger::log('mention found: ' . $mtch[2]);
+					Logger::notice('mention found: ' . $mtch[2]);
 				}
 			}
 		}
diff --git a/src/Protocol/OStatus.php b/src/Protocol/OStatus.php
index 7e17ab9f9..c40193e1b 100644
--- a/src/Protocol/OStatus.php
+++ b/src/Protocol/OStatus.php
@@ -212,7 +212,7 @@ class OStatus
 			Contact::update($contact, ['id' => $contact["id"]], $current);
 
 			if (!empty($author["author-avatar"]) && ($author["author-avatar"] != $current['avatar'])) {
-				Logger::log("Update profile picture for contact ".$contact["id"], Logger::DEBUG);
+				Logger::info("Update profile picture for contact ".$contact["id"]);
 				Contact::updateAvatar($contact["id"], $author["author-avatar"]);
 			}
 
@@ -336,7 +336,7 @@ class OStatus
 			self::$conv_list = [];
 		}
 
-		Logger::log('Import OStatus message for user ' . $importer['uid'], Logger::DEBUG);
+		Logger::info('Import OStatus message for user ' . $importer['uid']);
 
 		if ($xml == "") {
 			return false;
@@ -362,7 +362,7 @@ class OStatus
 				foreach ($hub_attributes as $hub_attribute) {
 					if ($hub_attribute->name == "href") {
 						$hub = $hub_attribute->textContent;
-						Logger::log("Found hub ".$hub, Logger::DEBUG);
+						Logger::info("Found hub ".$hub);
 					}
 				}
 			}
@@ -440,27 +440,27 @@ class OStatus
 
 			if (in_array($item["verb"], [Activity::O_UNFAVOURITE, Activity::UNFAVORITE])) {
 				// Ignore "Unfavorite" message
-				Logger::log("Ignore unfavorite message ".print_r($item, true), Logger::DEBUG);
+				Logger::info("Ignore unfavorite message ", ['item' => $item]);
 				continue;
 			}
 
 			// Deletions come with the same uri, so we check for duplicates after processing deletions
 			if (Post::exists(['uid' => $importer["uid"], 'uri' => $item["uri"]])) {
-				Logger::log('Post with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.', Logger::DEBUG);
+				Logger::info('Post with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.');
 				continue;
 			} else {
-				Logger::log('Processing post with URI '.$item["uri"].' for user '.$importer["uid"].'.', Logger::DEBUG);
+				Logger::info('Processing post with URI '.$item["uri"].' for user '.$importer["uid"].'.');
 			}
 
 			if ($item["verb"] == Activity::JOIN) {
 				// ignore "Join" messages
-				Logger::log("Ignore join message ".print_r($item, true), Logger::DEBUG);
+				Logger::info("Ignore join message ", ['item' => $item]);
 				continue;
 			}
 
 			if ($item["verb"] == "http://mastodon.social/schema/1.0/block") {
 				// ignore mastodon "block" messages
-				Logger::log("Ignore block message ".print_r($item, true), Logger::DEBUG);
+				Logger::info("Ignore block message ", ['item' => $item]);
 				continue;
 			}
 
@@ -477,7 +477,7 @@ class OStatus
 
 			if ($item["verb"] == Activity::FAVORITE) {
 				$orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
-				Logger::log("Favorite ".$orig_uri." ".print_r($item, true));
+				Logger::notice("Favorite", ['uri' => $orig_uri, 'item' => $item]);
 
 				$item["verb"] = Activity::LIKE;
 				$item["thr-parent"] = $orig_uri;
@@ -487,7 +487,7 @@ class OStatus
 
 			// http://activitystrea.ms/schema/1.0/rsvp-yes
 			if (!in_array($item["verb"], [Activity::POST, Activity::LIKE, Activity::SHARE])) {
-				Logger::log("Unhandled verb ".$item["verb"]." ".print_r($item, true), Logger::DEBUG);
+				Logger::info("Unhandled verb", ['verb' => $item["verb"], 'item' => $item]);
 			}
 
 			self::processPost($xpath, $entry, $item, $importer);
@@ -501,10 +501,10 @@ class OStatus
 						// If not, then it depends on this setting
 						$valid = ((self::$itemlist[0]['uid'] == 0) || !DI::pConfig()->get(self::$itemlist[0]['uid'], 'system', 'accept_only_sharer', false));
 						if ($valid) {
-							Logger::log("Item with uri ".self::$itemlist[0]['uri']." will be imported due to the system settings.", Logger::DEBUG);
+							Logger::info("Item with uri ".self::$itemlist[0]['uri']." will be imported due to the system settings.");
 						}
 					} else {
-						Logger::log("Item with uri ".self::$itemlist[0]['uri']." belongs to a contact (".self::$itemlist[0]['contact-id']."). It will be imported.", Logger::DEBUG);
+						Logger::info("Item with uri ".self::$itemlist[0]['uri']." belongs to a contact (".self::$itemlist[0]['contact-id']."). It will be imported.");
 					}
 					if ($valid) {
 						// Never post a thread when the only interaction by our contact was a like
@@ -516,7 +516,7 @@ class OStatus
 							}
 						}
 						if ($valid) {
-							Logger::log("Item with uri ".self::$itemlist[0]['uri']." will be imported since the thread contains posts or shares.", Logger::DEBUG);
+							Logger::info("Item with uri ".self::$itemlist[0]['uri']." will be imported since the thread contains posts or shares.");
 						}
 					}
 				} else {
@@ -535,18 +535,18 @@ class OStatus
 					foreach (self::$itemlist as $item) {
 						$found = Post::exists(['uid' => $importer["uid"], 'uri' => $item["uri"]]);
 						if ($found) {
-							Logger::log("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already exists.", Logger::DEBUG);
+							Logger::notice("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already exists.");
 						} elseif ($item['contact-id'] < 0) {
-							Logger::log("Item with uri ".$item["uri"]." is from a blocked contact.", Logger::DEBUG);
+							Logger::notice("Item with uri ".$item["uri"]." is from a blocked contact.");
 						} else {
 							$ret = Item::insert($item);
-							Logger::log("Item with uri ".$item["uri"]." for user ".$importer["uid"].' stored. Return value: '.$ret);
+							Logger::info("Item with uri ".$item["uri"]." for user ".$importer["uid"].' stored. Return value: '.$ret);
 						}
 					}
 				}
 				self::$itemlist = [];
 			}
-			Logger::log('Processing done for post with URI '.$item["uri"].' for user '.$importer["uid"].'.', Logger::DEBUG);
+			Logger::info('Processing done for post with URI '.$item["uri"].' for user '.$importer["uid"].'.');
 		}
 		return true;
 	}
@@ -562,13 +562,13 @@ class OStatus
 	{
 		$condition = ['uid' => $item['uid'], 'author-id' => $item['author-id'], 'uri' => $item['uri']];
 		if (!Post::exists($condition)) {
-			Logger::log('Item from '.$item['author-link'].' with uri '.$item['uri'].' for user '.$item['uid']." wasn't found. We don't delete it.");
+			Logger::notice('Item from '.$item['author-link'].' with uri '.$item['uri'].' for user '.$item['uid']." wasn't found. We don't delete it.");
 			return;
 		}
 
 		Item::markForDeletion($condition);
 
-		Logger::log('Deleted item with uri '.$item['uri'].' for user '.$item['uid']);
+		Logger::notice('Deleted item with uri '.$item['uri'].' for user '.$item['uid']);
 	}
 
 	/**
@@ -697,7 +697,7 @@ class OStatus
 					self::fetchRelated($related, $item["thr-parent"], $importer);
 				}
 			} else {
-				Logger::log('Reply with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.', Logger::DEBUG);
+				Logger::info('Reply with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.');
 			}
 		} else {
 			$item["thr-parent"] = $item["uri"];
@@ -845,7 +845,7 @@ class OStatus
 
 			$conv_data['source'] = $doc2->saveXML();
 
-			Logger::log('Store conversation data for uri '.$conv_data['uri'], Logger::DEBUG);
+			Logger::info('Store conversation data for uri '.$conv_data['uri']);
 			Conversation::insert($conv_data);
 		}
 	}
@@ -868,7 +868,7 @@ class OStatus
 			Conversation::PARCEL_DIASPORA_DFRN, Conversation::PARCEL_LEGACY_DFRN,
 			Conversation::PARCEL_LOCAL_DFRN, Conversation::PARCEL_DIRECT, Conversation::PARCEL_SALMON]];
 		if (DBA::exists('conversation', $condition)) {
-			Logger::log('Conversation '.$item['uri'].' is already stored.', Logger::DEBUG);
+			Logger::info('Conversation '.$item['uri'].' is already stored.');
 			return;
 		}
 
@@ -889,7 +889,7 @@ class OStatus
 		$item["source"] = $xml;
 		$item["direction"] = Conversation::PULL;
 
-		Logger::log('Conversation '.$item['uri'].' is now fetched.', Logger::DEBUG);
+		Logger::info('Conversation '.$item['uri'].' is now fetched.');
 	}
 
 	/**
@@ -912,11 +912,11 @@ class OStatus
 			$stored = true;
 			$xml = $conversation['source'];
 			if (self::process($xml, $importer, $contact, $hub, $stored, false, Conversation::PULL)) {
-				Logger::log('Got valid cached XML for URI '.$related_uri, Logger::DEBUG);
+				Logger::info('Got valid cached XML for URI '.$related_uri);
 				return;
 			}
 			if ($conversation['protocol'] == Conversation::PARCEL_SALMON) {
-				Logger::log('Delete invalid cached XML for URI '.$related_uri, Logger::DEBUG);
+				Logger::info('Delete invalid cached XML for URI '.$related_uri);
 				DBA::delete('conversation', ['item-uri' => $related_uri]);
 			}
 		}
@@ -932,7 +932,7 @@ class OStatus
 
 		if ($curlResult->inHeader('Content-Type') &&
 			in_array('application/atom+xml', $curlResult->getHeader('Content-Type'))) {
-			Logger::log('Directly fetched XML for URI ' . $related_uri, Logger::DEBUG);
+			Logger::info('Directly fetched XML for URI ' . $related_uri);
 			$xml = $curlResult->getBody();
 		}
 
@@ -957,7 +957,7 @@ class OStatus
 					$curlResult = DI::httpClient()->get($atom_file);
 
 					if ($curlResult->isSuccess()) {
-						Logger::log('Fetched XML for URI ' . $related_uri, Logger::DEBUG);
+						Logger::info('Fetched XML for URI ' . $related_uri);
 						$xml = $curlResult->getBody();
 					}
 				}
@@ -969,7 +969,7 @@ class OStatus
 			$curlResult = DI::httpClient()->get(str_replace('/notice/', '/api/statuses/show/', $related) . '.atom');
 
 			if ($curlResult->isSuccess()) {
-				Logger::log('GNU Social workaround to fetch XML for URI ' . $related_uri, Logger::DEBUG);
+				Logger::info('GNU Social workaround to fetch XML for URI ' . $related_uri);
 				$xml = $curlResult->getBody();
 			}
 		}
@@ -980,7 +980,7 @@ class OStatus
 			$curlResult = DI::httpClient()->get(str_replace('/notice/', '/api/statuses/show/', $related_guess) . '.atom');
 
 			if ($curlResult->isSuccess()) {
-				Logger::log('GNU Social workaround 2 to fetch XML for URI ' . $related_uri, Logger::DEBUG);
+				Logger::info('GNU Social workaround 2 to fetch XML for URI ' . $related_uri);
 				$xml = $curlResult->getBody();
 			}
 		}
@@ -991,7 +991,7 @@ class OStatus
 			$conversation = DBA::selectFirst('conversation', ['source'], $condition);
 			if (DBA::isResult($conversation)) {
 				$stored = true;
-				Logger::log('Got cached XML from conversation for URI '.$related_uri, Logger::DEBUG);
+				Logger::info('Got cached XML from conversation for URI '.$related_uri);
 				$xml = $conversation['source'];
 			}
 		}
@@ -999,7 +999,7 @@ class OStatus
 		if ($xml != '') {
 			self::process($xml, $importer, $contact, $hub, $stored, false, Conversation::PULL);
 		} else {
-			Logger::log("XML couldn't be fetched for URI: ".$related_uri." - href: ".$related, Logger::DEBUG);
+			Logger::info("XML couldn't be fetched for URI: ".$related_uri." - href: ".$related);
 		}
 		return;
 	}
@@ -1536,7 +1536,7 @@ class OStatus
 	private static function likeEntry(DOMDocument $doc, array $item, array $owner, $toplevel)
 	{
 		if (($item['gravity'] != GRAVITY_PARENT) && (Strings::normaliseLink($item["author-link"]) != Strings::normaliseLink($owner["url"]))) {
-			Logger::log("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", Logger::DEBUG);
+			Logger::info("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.");
 		}
 
 		$entry = self::entryHeader($doc, $owner, $item, $toplevel);
@@ -1685,7 +1685,7 @@ class OStatus
 	private static function noteEntry(DOMDocument $doc, array $item, array $owner, $toplevel)
 	{
 		if (($item['gravity'] != GRAVITY_PARENT) && (Strings::normaliseLink($item["author-link"]) != Strings::normaliseLink($owner["url"]))) {
-			Logger::log("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", Logger::DEBUG);
+			Logger::info("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.");
 		}
 
 		if (!$toplevel) {
@@ -1983,7 +1983,7 @@ class OStatus
 		if ((time() - strtotime($owner['last-item'])) < 15*60) {
 			$result = DI::cache()->get($cachekey);
 			if (!$nocache && !is_null($result)) {
-				Logger::log('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created . ' (cached)', Logger::DEBUG);
+				Logger::info('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created . ' (cached)');
 				$last_update = $result['last_update'];
 				return $result['feed'];
 			}
@@ -2048,7 +2048,7 @@ class OStatus
 		$msg = ['feed' => $feeddata, 'last_update' => $last_update];
 		DI::cache()->set($cachekey, $msg, Duration::QUARTER_HOUR);
 
-		Logger::log('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created, Logger::DEBUG);
+		Logger::info('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created);
 
 		return $feeddata;
 	}
diff --git a/src/Protocol/Salmon.php b/src/Protocol/Salmon.php
index 95bddcd65..321b91392 100644
--- a/src/Protocol/Salmon.php
+++ b/src/Protocol/Salmon.php
@@ -46,7 +46,7 @@ class Salmon
 	{
 		$ret = [];
 
-		Logger::log('Fetching salmon key for '.$uri);
+		Logger::info('Fetching salmon key for '.$uri);
 
 		$arr = Probe::lrdd($uri);
 
@@ -116,12 +116,12 @@ class Salmon
 		}
 
 		if (!$owner['sprvkey']) {
-			Logger::log(sprintf("user '%s' (%d) does not have a salmon private key. Send failed.",
+			Logger::notice(sprintf("user '%s' (%d) does not have a salmon private key. Send failed.",
 			$owner['name'], $owner['uid']));
 			return;
 		}
 
-		Logger::log('slapper called for '.$url.'. Data: ' . $slap);
+		Logger::info('slapper called for '.$url.'. Data: ' . $slap);
 
 		// create a magic envelope
 
@@ -165,7 +165,7 @@ class Salmon
 		// check for success, e.g. 2xx
 
 		if ($return_code > 299) {
-			Logger::log('GNU Social salmon failed. Falling back to compliant mode');
+			Logger::notice('GNU Social salmon failed. Falling back to compliant mode');
 
 			// Now try the compliant mode that normally isn't used for GNU Social
 			$xmldata = ["me:env" => ["me:data" => $data,
@@ -188,7 +188,7 @@ class Salmon
 		}
 
 		if ($return_code > 299) {
-			Logger::log('compliant salmon failed. Falling back to old status.net');
+			Logger::notice('compliant salmon failed. Falling back to old status.net');
 
 			// Last try. This will most likely fail as well.
 			$xmldata = ["me:env" => ["me:data" => $data,
@@ -209,7 +209,7 @@ class Salmon
 			$return_code = $postResult->getReturnCode();
 		}
 
-		Logger::log('slapper for '.$url.' returned ' . $return_code);
+		Logger::info('slapper for '.$url.' returned ' . $return_code);
 
 		if (! $return_code) {
 			return -1;
diff --git a/src/Util/Crypto.php b/src/Util/Crypto.php
index b3ae2d69b..5f2fee3be 100644
--- a/src/Util/Crypto.php
+++ b/src/Util/Crypto.php
@@ -136,7 +136,7 @@ class Crypto
 		$result = openssl_pkey_new($openssl_options);
 
 		if (empty($result)) {
-			Logger::log('new_keypair: failed');
+			Logger::notice('new_keypair: failed');
 			return false;
 		}
 
@@ -261,7 +261,7 @@ class Crypto
 	private static function encapsulateOther($data, $pubkey, $alg)
 	{
 		if (!$pubkey) {
-			Logger::log('no key. data: '.$data);
+			Logger::notice('no key. data: '.$data);
 		}
 		$fn = 'encrypt' . strtoupper($alg);
 		if (method_exists(__CLASS__, $fn)) {
@@ -303,7 +303,7 @@ class Crypto
 	private static function encapsulateAes($data, $pubkey)
 	{
 		if (!$pubkey) {
-			Logger::log('aes_encapsulate: no key. data: ' . $data);
+			Logger::notice('aes_encapsulate: no key. data: ' . $data);
 		}
 
 		$key = random_bytes(32);
@@ -314,7 +314,7 @@ class Crypto
 		// log the offending call so we can track it down
 		if (!openssl_public_encrypt($key, $k, $pubkey)) {
 			$x = debug_backtrace();
-			Logger::log('aes_encapsulate: RSA failed. ' . print_r($x[0], true));
+			Logger::notice('aes_encapsulate: RSA failed.', ['data' => $x[0]]);
 		}
 
 		$result['alg'] = 'aes256cbc';
diff --git a/src/Util/DateTimeFormat.php b/src/Util/DateTimeFormat.php
index fdb49dabd..cf3216a15 100644
--- a/src/Util/DateTimeFormat.php
+++ b/src/Util/DateTimeFormat.php
@@ -157,7 +157,7 @@ class DateTimeFormat
 		try {
 			$d = new DateTime($s, $from_obj);
 		} catch (Exception $e) {
-			Logger::log('DateTimeFormat::convert: exception: ' . $e->getMessage());
+			Logger::notice('DateTimeFormat::convert: exception: ' . $e->getMessage());
 			$d = new DateTime('now', $from_obj);
 		}
 
diff --git a/src/Util/HTTPSignature.php b/src/Util/HTTPSignature.php
index 89cb0452a..f11dbcceb 100644
--- a/src/Util/HTTPSignature.php
+++ b/src/Util/HTTPSignature.php
@@ -80,7 +80,7 @@ class HTTPSignature
 		$sig_block = self::parseSigheader($headers['authorization']);
 
 		if (!$sig_block) {
-			Logger::log('no signature provided.');
+			Logger::notice('no signature provided.');
 			return $result;
 		}
 
@@ -110,7 +110,7 @@ class HTTPSignature
 			$key = $key($sig_block['keyId']);
 		}
 
-		Logger::log('Got keyID ' . $sig_block['keyId'], Logger::DEBUG);
+		Logger::info('Got keyID ' . $sig_block['keyId']);
 
 		if (!$key) {
 			return $result;
@@ -118,7 +118,7 @@ class HTTPSignature
 
 		$x = Crypto::rsaVerify($signed_data, $sig_block['signature'], $key, $algorithm);
 
-		Logger::log('verified: ' . $x, Logger::DEBUG);
+		Logger::info('verified: ' . $x);
 
 		if (!$x) {
 			return $result;
@@ -308,7 +308,7 @@ class HTTPSignature
 		$postResult = DI::httpClient()->post($target, $content, $headers);
 		$return_code = $postResult->getReturnCode();
 
-		Logger::log('Transmit to ' . $target . ' returned ' . $return_code, Logger::DEBUG);
+		Logger::info('Transmit to ' . $target . ' returned ' . $return_code);
 
 		$success = ($return_code >= 200) && ($return_code <= 299);
 
@@ -459,7 +459,7 @@ class HTTPSignature
 		}
 		$return_code = $curlResult->getReturnCode();
 
-		Logger::log('Fetched for user ' . $uid . ' from ' . $request . ' returned ' . $return_code, Logger::DEBUG);
+		Logger::info('Fetched for user ' . $uid . ' from ' . $request . ' returned ' . $return_code);
 
 		return $curlResult;
 	}
@@ -604,7 +604,7 @@ class HTTPSignature
 		if (in_array('date', $sig_block['headers'])) {
 			$diff = abs(strtotime($headers['date']) - time());
 			if ($diff > 300) {
-				Logger::log("Header date '" . $headers['date'] . "' is with " . $diff . " seconds out of the 300 second frame. The signature is invalid.");
+				Logger::notice("Header date '" . $headers['date'] . "' is with " . $diff . " seconds out of the 300 second frame. The signature is invalid.");
 				return false;
 			}
 			$hasGoodSignedContent = true;
diff --git a/src/Util/Network.php b/src/Util/Network.php
index 0b10687c9..9c7b6a8af 100644
--- a/src/Util/Network.php
+++ b/src/Util/Network.php
@@ -268,7 +268,7 @@ class Network
 			$avatar['url'] = DI::baseUrl() . Contact::DEFAULT_AVATAR_PHOTO;
 		}
 
-		Logger::log('Avatar: ' . $avatar['email'] . ' ' . $avatar['url'], Logger::DEBUG);
+		Logger::info('Avatar: ' . $avatar['email'] . ' ' . $avatar['url']);
 		return $avatar['url'];
 	}
 
diff --git a/src/Util/Strings.php b/src/Util/Strings.php
index 196718654..2f27e4a5f 100644
--- a/src/Util/Strings.php
+++ b/src/Util/Strings.php
@@ -284,7 +284,7 @@ class Strings
 	public static function base64UrlDecode($s)
 	{
 		if (is_array($s)) {
-			Logger::log('base64url_decode: illegal input: ' . print_r(debug_backtrace(), true));
+			Logger::notice('base64url_decode: illegal input: ', ['backtrace' => debug_backtrace()]);
 			return $s;
 		}
 
diff --git a/src/Util/XML.php b/src/Util/XML.php
index 7b4539ba8..df3e913f5 100644
--- a/src/Util/XML.php
+++ b/src/Util/XML.php
@@ -268,7 +268,7 @@ class XML
 		}
 
 		if (!function_exists('xml_parser_create')) {
-			Logger::log('Xml::toArray: parser function missing');
+			Logger::notice('Xml::toArray: parser function missing');
 			return [];
 		}
 
@@ -283,7 +283,7 @@ class XML
 		}
 
 		if (! $parser) {
-			Logger::log('Xml::toArray: xml_parser_create: no resource');
+			Logger::notice('Xml::toArray: xml_parser_create: no resource');
 			return [];
 		}
 
@@ -295,9 +295,9 @@ class XML
 		@xml_parser_free($parser);
 
 		if (! $xml_values) {
-			Logger::log('Xml::toArray: libxml: parse error: ' . $contents, Logger::DATA);
+			Logger::debug('Xml::toArray: libxml: parse error: ' . $contents);
 			foreach (libxml_get_errors() as $err) {
-				Logger::log('libxml: parse: ' . $err->code . " at " . $err->line . ":" . $err->column . " : " . $err->message, Logger::DATA);
+				Logger::debug('libxml: parse: ' . $err->code . " at " . $err->line . ":" . $err->column . " : " . $err->message);
 			}
 			libxml_clear_errors();
 			return;
diff --git a/src/Worker/CheckVersion.php b/src/Worker/CheckVersion.php
index 6f764a72d..134ddaaba 100644
--- a/src/Worker/CheckVersion.php
+++ b/src/Worker/CheckVersion.php
@@ -35,7 +35,7 @@ class CheckVersion
 {
 	public static function execute()
 	{
-		Logger::log('checkversion: start');
+		Logger::notice('checkversion: start');
 
 		$checkurl = DI::config()->get('system', 'check_new_version_url', 'none');
 
@@ -51,15 +51,15 @@ class CheckVersion
 				// don't check
 				return;
 		}
-		Logger::log("Checking VERSION from: ".$checked_url, Logger::DEBUG);
+		Logger::info("Checking VERSION from: ".$checked_url);
 
 		// fetch the VERSION file
 		$gitversion = DBA::escape(trim(DI::httpClient()->fetch($checked_url)));
-		Logger::log("Upstream VERSION is: ".$gitversion, Logger::DEBUG);
+		Logger::notice("Upstream VERSION is: ".$gitversion);
 
 		DI::config()->set('system', 'git_friendica_version', $gitversion);
 
-		Logger::log('checkversion: end');
+		Logger::notice('checkversion: end');
 
 		return;
 	}
diff --git a/src/Worker/Directory.php b/src/Worker/Directory.php
index 3dcaa7205..7b098bc94 100644
--- a/src/Worker/Directory.php
+++ b/src/Worker/Directory.php
@@ -51,7 +51,7 @@ class Directory
 
 		Hook::callAll('globaldir_update', $arr);
 
-		Logger::log('Updating directory: ' . $arr['url'], Logger::DEBUG);
+		Logger::info('Updating directory: ' . $arr['url']);
 		if (strlen($arr['url'])) {
 			DI::httpClient()->fetch($dir . '?url=' . bin2hex($arr['url']));
 		}
diff --git a/src/Worker/ProfileUpdate.php b/src/Worker/ProfileUpdate.php
index e9e9afe8d..d353b5510 100644
--- a/src/Worker/ProfileUpdate.php
+++ b/src/Worker/ProfileUpdate.php
@@ -41,7 +41,7 @@ class ProfileUpdate {
 		$inboxes = ActivityPub\Transmitter::fetchTargetInboxesforUser($uid);
 
 		foreach ($inboxes as $inbox => $receivers) {
-			Logger::log('Profile update for user ' . $uid . ' to ' . $inbox .' via ActivityPub', Logger::DEBUG);
+			Logger::info('Profile update for user ' . $uid . ' to ' . $inbox .' via ActivityPub');
 			Worker::add(['priority' => $a->getQueueValue('priority'), 'created' => $a->getQueueValue('created'), 'dont_fork' => true],
 				'APDelivery', Delivery::PROFILEUPDATE, 0, $inbox, $uid, $receivers);
 		}
diff --git a/src/Worker/PubSubPublish.php b/src/Worker/PubSubPublish.php
index f9c311b2d..49aef00c9 100644
--- a/src/Worker/PubSubPublish.php
+++ b/src/Worker/PubSubPublish.php
@@ -48,7 +48,7 @@ class PubSubPublish
 		/// @todo Check server status with GServer::check()
 		// Before this can be done we need a way to safely detect the server url.
 
-		Logger::log("Generate feed of user " . $subscriber['nickname']. " to " . $subscriber['callback_url']. " - last updated " . $subscriber['last_update'], Logger::DEBUG);
+		Logger::info("Generate feed of user " . $subscriber['nickname']. " to " . $subscriber['callback_url']. " - last updated " . $subscriber['last_update']);
 
 		$last_update = $subscriber['last_update'];
 		$params = OStatus::feed($subscriber['nickname'], $last_update);
@@ -66,17 +66,17 @@ class PubSubPublish
 					$subscriber['topic']),
 			'X-Hub-Signature' => 'sha1=' . $hmac_sig];
 
-		Logger::log('POST ' . print_r($headers, true) . "\n" . $params, Logger::DATA);
+		Logger::debug('POST ' . ['headers' => $headers, 'params' => $params]);
 
 		$postResult = DI::httpClient()->post($subscriber['callback_url'], $params, $headers);
 		$ret = $postResult->getReturnCode();
 
 		if ($ret >= 200 && $ret <= 299) {
-			Logger::log('Successfully pushed to ' . $subscriber['callback_url']);
+			Logger::info('Successfully pushed to ' . $subscriber['callback_url']);
 
 			PushSubscriber::reset($subscriber['id'], $last_update);
 		} else {
-			Logger::log('Delivery error when pushing to ' . $subscriber['callback_url'] . ' HTTP: ' . $ret);
+			Logger::notice('Delivery error when pushing to ' . $subscriber['callback_url'] . ' HTTP: ' . $ret);
 
 			PushSubscriber::delay($subscriber['id']);
 		}
diff --git a/view/theme/frio/theme.php b/view/theme/frio/theme.php
index e58638056..138bfdc2a 100644
--- a/view/theme/frio/theme.php
+++ b/view/theme/frio/theme.php
@@ -57,7 +57,7 @@ function frio_install()
 	Hook::register('nav_info', 'view/theme/frio/theme.php', 'frio_remote_nav');
 	Hook::register('display_item', 'view/theme/frio/theme.php', 'frio_display_item');
 
-	Logger::log('installed theme frio');
+	Logger::info('installed theme frio');
 }
 
 /**
diff --git a/view/theme/vier/style.php b/view/theme/vier/style.php
index 6ae61fd95..a1b492b95 100644
--- a/view/theme/vier/style.php
+++ b/view/theme/vier/style.php
@@ -49,7 +49,7 @@ foreach (['style', $style] as $file) {
 		}
 	} else {
 		//TODO: use Logger::ERROR?
-		Logger::log('Error: missing file: "' . $stylecssfile .'" (userid: '. $uid .')');
+		Logger::notice('Error: missing file: "' . $stylecssfile .'" (userid: '. $uid .')');
 	}
 }
 $modified = gmdate('r', $modified);