Overloaded UDF DAG dependencies fixed; parse-time memory reduced

dbt-core 1.12.0-rc3 - July 14, 2026

Features

• Add hints for cli users based on dbt usage (#15510)

Fixes

• Carry ref/source/function dependencies declared inside an overloaded UDF's overload body onto the root function node, so they are not dropped from the DAG when the overload SQL file is absorbed (#15501)
• Update reuse relations hint text (#15510)

Under the Hood

• Reduce parse-time memory and macro-generation overhead by virtualizing macros and switching flat_graph/WritableManifest to lazy no-copy views (#15524)

Contributors

• @aahel (#15501)
• @ash2shukla (#15510, #15510, #15524)
• @peterallenwebb (#15524)