catalyst-cooperative/pudl: PUDL v2026.3.0

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