diff --git a/i18n/de.json b/i18n/de.json
index d5b6a02aa..4f14c2955 100644
--- a/i18n/de.json
+++ b/i18n/de.json
@@ -4,7 +4,8 @@
 			"Kghbln",
 			"Metalhead64",
 			"Revolus",
-			"Umherirrender"
+			"Umherirrender",
+			"Brettchenweber"
 		]
 	},
 	"math-desc": "Ergänzt das Tag <code>&lt;math&gt;</code> zum Darstellen mathematischer Formeln",
@@ -21,7 +22,7 @@
 	"math-visualeditor-mwlatexinspector-qid": "Wikibase-ID (mit Q-Präfix)",
 	"math-visualeditor-mwmathdialog-title": "Math-Formel",
 	"math-visualeditor-symbol-group-chem-addition": "Zusatzverbindungen",
-	"math-visualeditor-symbol-group-chem-aggregation": "Aggregatszustände",
+	"math-visualeditor-symbol-group-chem-aggregation": "Aggregatzustände",
 	"math-visualeditor-symbol-group-chem-arrows": "Reaktionspfeile",
 	"math-visualeditor-symbol-group-chem-brackets": "Runde Klammern, Klammern & geschweifte Klammern",
 	"math-visualeditor-symbol-group-chem-charges": "Aufladungen",
diff --git a/i18n/io.json b/i18n/io.json
index 374936cef..442d24e2b 100644
--- a/i18n/io.json
+++ b/i18n/io.json
@@ -69,6 +69,7 @@
 	"math-test-start": "Duranta probi uzanta ''rendering mode $1''.",
 	"math-test-success": "Probo ''$1'' <span style=\"color:green\">sucesis</span>.",
 	"math-tracking-category-error": "Pagini kun erori pri matematiko",
+	"math-tracking-category-mhchem-deprecation-desc": "Pagini en ca kategorio uzas obsoleta formato dil etiketi ''chem''",
 	"math-tracking-category-render-error": "Pagini kun erori pri matematikala simboli",
 	"math_unknown_error": "nekonocata eroro",
 	"math_unknown_function": "funciono nekonocata \"$1\"",
diff --git a/i18n/sr-el.json b/i18n/sr-el.json
index 97c6cd19f..afbd02574 100644
--- a/i18n/sr-el.json
+++ b/i18n/sr-el.json
@@ -63,7 +63,8 @@
 	"math_syntax_error": "greška u sintaksi",
 	"math-tracking-category-error": "Strane sa matematičkim greškama",
 	"math-tracking-category-mhchem-deprecation": "Stranice koje koriste zastareli format hemijskih oznaka",
-	"math-tracking-category-mhchem-deprecation-desc": "Stranice u ovoj kategoriji koriste zastareli format hemijskih oznaka",
+	"math-tracking-category-mhchem-deprecation-desc": "Stranice sa zastarelim formatom hemijskih oznaka",
+	"math-tracking-category-texvc-deprecation-desc": "Stranice sa zastarelim formatom matematičkih oznaka",
 	"math_unknown_error": "nepoznata greška",
 	"math_unknown_function": "nepoznata funkcija „$1“",
 	"mw_math_latexml": "LaTeXML (eksprimentalno; koristi MathML)",