Launchpad currently recommends translating update-manager in Ubuntu Bionic.

Template "update-manager" in Ubuntu Bionic package "update-manager"

Language Status Untranslated Need review Changed Last Edited By
Cherokee 100.00  100.0% untranslated 118 118 0 0
Dakota 100.00  100.0% untranslated 118 118 0 0
Hawaiian 100.00  100.0% untranslated 118 118 0 0
Inuktitut 100.00  100.0% untranslated 118 118 0 0
Lakota 100.00  100.0% untranslated 118 118 0 0
Ojibwe 100.00  100.0% untranslated 118 118 0 0
Spanish 000.00  100.0% translated 0 0 6 6 2018-06-18 10:45:56 UTC 10 hours ago Adolfo Jayme
Tlingit 100.00  100.0% untranslated 118 118 0 0
Yiddish 100.00  100.0% untranslated 118 118 0 0
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Key to this table: “Unchanged” means Translated
and “untranslated” means just that, Untranslated

Other versions of update-manager in Ubuntu