1. A method, comprising: accessing a standardized language tag repository to identify changes in repository language tags; searching records of a data source categorized using language tags to identify language tags present in records of the data source; determining whether the language tags present in the records of the data source are inconsistent with the repository language tags; responsive to determining that the language tags present in the records of the data source are inconsistent with the repository language tags, determining a language tag update policy for the data source; and performing a language tag update process for the records according to the language tag update policy to re-categorize the records based on the repository language tags.