pandas v3.0.4 - SQL and Arrow Fixes

pandas v3.0.4 was published on June 28, 2026 as a patch release for the 3.0.x line. For data engineers, the main item is a fix for DataFrame.to_sql() and read_sql_table() with ADBC engines, where table and schema names were not quoted as SQL identifiers. The GitHub metadata does not mark this as a prerelease.