diff --git a/i18n/api/zh-hans.json b/i18n/api/zh-hans.json
index 7e1f0942..0eb416b7 100644
--- a/i18n/api/zh-hans.json
+++ b/i18n/api/zh-hans.json
@@ -1,6 +1,7 @@
 {
 	"@metadata": {
 		"authors": [
+			"FakeGreenHand",
 			"Liuxinyu970226"
 		]
 	},
@@ -15,5 +16,9 @@
 	"apihelp-ulslocalization-summary": "获取指定语言的ULS本地化。",
 	"apihelp-ulslocalization-param-language": "语言代码。",
 	"apihelp-ulslocalization-example-1": "获得泰米尔语本地化",
-	"apihelp-ulslocalization-example-2": "获得印地语本地化"
+	"apihelp-ulslocalization-example-2": "获得印地语本地化",
+	"apihelp-ulssetlang-description": "更新用户的首选界面语言。",
+	"apihelp-ulssetlang-summary": "更新用户的首选界面语言。",
+	"apihelp-ulssetlang-param-languagecode": "首选语言代码。",
+	"apierror-ulssetlang-anon-notallowed": "匿名用户不允许修改界面语言。"
 }
diff --git a/i18n/fi.json b/i18n/fi.json
index ada30954..51264945 100644
--- a/i18n/fi.json
+++ b/i18n/fi.json
@@ -9,7 +9,8 @@
 			"Olli",
 			"Pxos",
 			"Pyscowicz",
-			"Stryn"
+			"Stryn",
+			"Yupik"
 		]
 	},
 	"uls-desc": "Tarjoaa useita tapoja kielen valitsemiseen ja kieliasetusten hienosäätöön",
@@ -65,5 +66,6 @@
 	"ext-uls-compact-link-count": "$1 {{PLURAL:$1|muu kieli|muuta kieltä}}",
 	"prefs-languages": "Kielet",
 	"ext-uls-compact-language-links-preference": "Käytä [[$1|kompaktia kielilistaa]], joka näyttää sinulle tärkeimmät kielet.",
-	"ext-uls-compact-no-results": "Tämä sivu ei ole saatavilla etsimälläsi kielellä."
+	"ext-uls-compact-no-results": "Tämä sivu ei ole saatavilla etsimälläsi kielellä.",
+	"ext-uls-setlang-unknown-error": "Tuntematon virhe"
 }
diff --git a/i18n/ryu.json b/i18n/ryu.json
new file mode 100644
index 00000000..7341df92
--- /dev/null
+++ b/i18n/ryu.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"ChoiChong"
+		]
+	},
+	"ext-uls-compact-link-count": "{{PLURAL:$1|他ぬ $1 口}}"
+}
diff --git a/i18n/se.json b/i18n/se.json
index 39d7bb5d..18c2977f 100644
--- a/i18n/se.json
+++ b/i18n/se.json
@@ -7,7 +7,9 @@
 	"uls-plang-title-languages": "Gielat",
 	"ext-uls-display-settings-language-tab": "Giella",
 	"ext-uls-display-settings-fonts-tab": "Fonttat",
+	"ext-uls-display-settings-title-short": "Čájet",
 	"jquery-ime-other-languages": "Eará gielat",
 	"jquery-ime-help": "Veahkki",
-	"prefs-languages": "Gielat"
+	"prefs-languages": "Gielat",
+	"ext-uls-setlang-unknown-error": "Dovdameahttun feaila"
 }
diff --git a/i18n/smn.json b/i18n/smn.json
index eb411aa3..e98d924c 100644
--- a/i18n/smn.json
+++ b/i18n/smn.json
@@ -9,5 +9,6 @@
 	"ext-uls-display-settings-language-tab": "Kielâ",
 	"ext-uls-language-settings-title": "Kielâasâttâsah",
 	"jquery-ime-other-languages": "Eres kielah",
-	"prefs-languages": "Kielah"
+	"prefs-languages": "Kielah",
+	"ext-uls-setlang-unknown-error": "Tubdâmettum feilâ"
 }