Tomer Schwartz updated the MicrosoftDocs/dataexplorer-docs repository by delivering comprehensive documentation for Kusto Materialized Views, focusing on clarifying the behavior of lookback and lookback_column settings, immutability constraints, and data deduplication implications. Using Markdown and technical writing skills, Tomer addressed edge cases such as the impact of null values on deduplication, ensuring the documentation accurately reflected current product behavior. The work included a series of quality improvements, such as refining links and responding to pull request comments, which enhanced developer onboarding and reduced support risks. The depth of coverage provided authoritative, up-to-date guidance for users of Kusto Materialized Views.