# Changelog

What changed in each version of IFC Checker, newest first, with the details of every version.

Updated 2 November 2026

## 0.1.1

2 November 2026

**The first numbered release: check IFC models against IDS, read the results, fix and export.**

- Check up to five IFC models at once against an IDS file, or against a predefined test and the stage you choose, or try the sample model.
- The Model Correctness Index with how many elements were tested, and a result for every element, with only the failing value marked.
- Model health, the check of the file itself, beside the check against the test.
- The 3D view of the model, passed elements green, failed red and untested grey, with every number, list and cell showing its elements.
- The analytical view on three levels, project, model and property set, and the Model and Extended data tables.
- Marks: mark a value as an issue, or a failure as not an issue, and turn a wrong value into a rule for every similar case.
- The BCF topics section: every topic with its picture, edited, closed as not an issue and downloaded as BCF.
- The IDS editor, one table of rules, with live counts on a model and paste from Excel or Google Sheets.
- More tests in the IDS editor: a kind of test for each rule, one test for many properties or for a whole property set, a start from a list of sets and properties, and a grid of the tests.
- Downloads as BCF 2.1, an Excel workbook and a CSV file.
- Saved results and a link that opens them, read only, with the model in 3D.

[Workflows and help](https://ifcchecker.com/help/)