Release v3.3.1 · igerber/diff-diff

What's Changed

Wave 2: PanelProfile outcome/dose shape extensions + autonomous-guide worked examples by @igerber in #366
Close SDID placebo R-parity gap: warm-start + R-anchored fixture + test seam by @igerber in #369
dCDH by_path + placebo: per-path backward-horizon placebos (Wave 2 #3) by @igerber in #371
Add Tutorial 19: dCDH for Marketing Pulse Campaigns by @igerber in #373
HAD Phase 4.5 C: linearity-family pretests under survey by @igerber in #370
Docs refresh: trim README to a 188-line landing page; redirect contributor conventions by @igerber in #372
Add per-path joint sup-t bands to ChaisemartinDHaultfoeuille.by_path by @igerber in #374
Refocus Tutorial 19 on dCDH alone (drop TWFE comparison) by @igerber in #375
chore(ci): add Dependabot config and workflow permissions by @igerber in #377
Chore(deps): Bump actions/download-artifact from 4 to 8 by @dependabot[bot] in #379
Chore(deps): Bump actions/upload-artifact from 4 to 7 by @dependabot[bot] in #385
Chore(deps): Bump actions/github-script from 7 to 9 by @dependabot[bot] in #383
Consolidate HAD survey-design API to single survey_design= kwarg by @igerber in #376
Chore(deps): Bump actions/checkout from 4 to 6 by @dependabot[bot] in #381
Chore(deps): Bump actions/setup-python from 5 to 6 by @dependabot[bot] in #380
Release 3.3.1: HAD survey-design consolidation, dCDH by_path placebos + sup-t bands, Phase 4.5 C by @igerber in #387

Full Changelog: v3.3.0...v3.3.1