diff --git a/install/lang/ca/install.php b/install/lang/ca/install.php
index c3cd53d450616..dc66361463b57 100644
--- a/install/lang/ca/install.php
+++ b/install/lang/ca/install.php
@@ -79,9 +79,9 @@
 $string['pathswrongadmindir'] = 'No existeix el directori d\'administració';
 $string['phpextension'] = 'Extensió PHP {$a}';
 $string['phpversion'] = 'Versió PHP';
-$string['phpversionhelp'] = '<p>Moodle necessita una versió de PHP 4.3.0 o 5.1.0 (les versions 5.0.x tenien uns quants problemes coneguts).</p>
-<p>A hores d\'ara esteu utilitzant la versió {$a}.</p>
-<p>Us cal actualitzar el PHP o traslladar Moodle a un ordinador amb una versió de PHP més recent.<br />(Si esteu utilitzant la versió 5.0.x, alternativament també podríeu tornar enrere a la 4.4.x)</p>';
+$string['phpversionhelp'] = '<p>El Moodle requereix una versió de PHP almenys 5.6.5 o 7.1 (7.0.x té algunes limitacions del motor).</p>
+<p>Actualment esteu executant la versió {$a}.</p>
+<p>Heu d\'actualitzar el PHP o canviar a un servidor amb una versió més nova del PHP.</p>';
 $string['welcomep10'] = '{$a->installername} ({$a->installerversion})';
 $string['welcomep20'] = 'Esteu veient aquesta pàgina perquè heu instal·lat amb èxit i heu executat el paquet <strong>{$a->packname} {$a->packversion}</strong>. Felicitacions.';
 $string['welcomep30'] = 'Aquesta versió de <strong>{$a->installername}</strong> inclou les aplicacions necessàries per crear un entorn en el qual funcioni <strong>Moodle</strong>, concretament:';
diff --git a/install/lang/mt/langconfig.php b/install/lang/mt/langconfig.php
new file mode 100644
index 0000000000000..ea5bb448629d2
--- /dev/null
+++ b/install/lang/mt/langconfig.php
@@ -0,0 +1,32 @@
+<?php
+// This file is part of Moodle - https://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <https://www.gnu.org/licenses/>.
+
+/**
+ * Automatically generated strings for Moodle installer
+ *
+ * Do not edit this file manually! It contains just a subset of strings
+ * needed during the very first steps of installation. This file was
+ * generated automatically by export-installer.php (which is part of AMOS
+ * {@link http://docs.moodle.org/dev/Languages/AMOS}) using the
+ * list of strings defined in /install/stringnames.txt.
+ *
+ * @package   installer
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$string['thislanguage'] = 'Malti';
diff --git a/install/lang/zu/admin.php b/install/lang/zu/admin.php
new file mode 100644
index 0000000000000..a77cadb093875
--- /dev/null
+++ b/install/lang/zu/admin.php
@@ -0,0 +1,40 @@
+<?php
+// This file is part of Moodle - https://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <https://www.gnu.org/licenses/>.
+
+/**
+ * Automatically generated strings for Moodle installer
+ *
+ * Do not edit this file manually! It contains just a subset of strings
+ * needed during the very first steps of installation. This file was
+ * generated automatically by export-installer.php (which is part of AMOS
+ * {@link http://docs.moodle.org/dev/Languages/AMOS}) using the
+ * list of strings defined in /install/stringnames.txt.
+ *
+ * @package   installer
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$string['clianswerno'] = 'n';
+$string['cliansweryes'] = 'y';
+$string['cliincorrectvalueerror'] = 'Iphutha, inani elingalungile "{$a->value}" le-"{$a->option}"';
+$string['cliincorrectvalueretry'] = 'Inani elingalungile, sicela uzame futhi';
+$string['clitypevalue'] = 'uhlobo lwevelu';
+$string['clitypevaluedefault'] = 'thayipha inani, cindezela u-Enter ukuze usebenzise inani elizenzakalelayo ({$a})';
+$string['cliunknowoption'] = 'Izinketho ezingaziwa:
+  {$a}
+Sicela usebenzise inketho ethi --help.';