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OpenConstructionERP v3 is here.

Consolidates the entire v2.x line — 100+ patch releases between 2026-04-20 and 2026-05-12 — into a stable v3.0.0 milestone. Same wheel content as v2.9.42, framed as the v3 release.

v3 highlights (cumulative since v2.0.0)

Cost data & match-making

  • 42 regional cost catalogues (Europe, Americas, Asia, Africa) — CWICR v3 schema
  • AI vector matching via Qdrant + BGE rerank across 11 classification standards (DIN 276, MasterFormat, NRM, GAEB, UNTEC, VOCI, BC3, GB50500, SEKISAN, GESN, BirimFiyat)
  • Per-encoder + per-language confidence thresholds, language-family region aliases
  • Multi-currency BOQ with live FX rollup

CAD / BIM (no IfcOpenShell)

  • DDC cad2data pipeline: DWG / DGN / IFC / RVT → canonical JSON
  • PDF + DWG takeoff (PaddleOCR + YOLOv11)
  • BIM Quantity Rules + Requirements DSL
  • BCF I/O (issues / viewpoints / validation reports)

Project control

  • File-manager — unified hub for docs / photos / BIM / DWG / sheets / markups / reports / takeoffs, with per-folder ACL (viewer / editor / owner), per-file activity log, password-protected share links, bulk operations
  • Finance, Procurement, Tendering, Change Orders, Compliance Docs tracker (insurance / permits / bonds with expiry)
  • RFI, Submittals, Transmittals, NCR, Inspections, Meetings, Correspondence, Contacts
  • Tasks, Schedule (Gantt), Risk Register, 5D Cost Model
  • Validation (DIN 276 / NRM / MasterFormat / GAEB), Compliance DSL, 3-way invoice match

Platform

  • 71 plug-and-play modules with auto-discovery
  • 21 languages with lazy-loaded chunks
  • Apple-style design system, light + dark, route-aware backdrop variants
  • AGPL-3.0 — open data, open standards, open formats

Security & quality

  • IDOR sweep across 73+ endpoints, RBAC scopes
  • MIME hardening, share-link password protection
  • 450+ pytest tests, 1600+ vitest tests

Install

```bash pip install openconstructionerp==3.0.0

or

docker compose up ```

After install: `openestimate` to start the server.

PyPI: https://pypi.org/project/openconstructionerp/3.0.0/ Demo: https://openconstructionerp.com Docs: https://github.com/datadrivenconstruction/OpenConstructionERP

Cost data is infrastructure, not product. The estimator's job is judgment. The software's job is to get out of the way.

Source: README.md, updated 2026-05-12