Changes: See Release Notes for details. What's Changed New & Updated Data Transform 7-10 of top ten RUS12 tables by @aesharpe in #4979 Extract remaining RUS Form 7 and Form 12 tables by @e-belfer in #5031 Transform next tranche of RUS 12 tables by @cmgosnell in #5018 Add January 2026 EIA 860M data by @e-belfer in #5044 Integrate EIA-923 Schedule 8C (Emissions Controls) by @zaneselvans in #5048 Add more rus table transforms by @aesharpe in #5034 Other Changes Duckdb helper script by @zschira in #5015 Add 2026 ecosystem survey banner to docs by @zaneselvans in #5020 Include contributor survey in CONTRIBUTING.rst by @aesharpe in #5026 Validation first pass for RUS Form 7 and 12 tables by @e-belfer in #5017 Add RUS docs by @aesharpe in #5028 Add ability to apply schema to tables created with duckdb by @zschira in #5027 Remove premature polars dtype change by @zschira in #5038 Set missing mass_measurement_code values to NULL in EPA CEMS by @zaneselvans in #5041 Fix metadata on noncompliant tables by @krivard in #5029 Add direct table preview links to PUDL data dictionary by @zaneselvans in #5047 Add more detail to row count update docs by @aesharpe in #5052 RUS-12 Transform phase 4 validation fix by @cmgosnell in #5055 Investigate RP7 annual vs RP8 monthly EIA-191 data (#4755) by @irubey in #5053 Harvest (aka normalize) RUS borrower names by @cmgosnell in #5056 Add row counts and validation tests for 3 new RUS Form 12 tables by @e-belfer in #5060 Get Dagster's dg CLI working in the PUDL repo. by @zaneselvans in #5075 Subset simple Dagster multi-assets in PUDL ETL by @zaneselvans in #5062 [HOTFIX] Add migration fixing report_date PKs by @zaneselvans in #5084 Fix row counts & FKs that broke 2026-03-11 nightly build by @zaneselvans in #5086 Close out release notes for PUDL v2026.3.0 by @zaneselvans in #5092 New Contributors @irubey made their first contribution in #5053 Full Changelog: v2026.2.0...v2026.3.0