# Release notes These are the releases of Progmasoft Catch3. Its compatibility engine is based on Catch2 3.16.1; Catch2's own history is in [its release notes](https://github.com/catchorg/Catch2/blob/devel/docs/release-notes.md). **Contents**
[0.3.0 (unreleased)](#030-unreleased)
[0.2.0](#020)
[0.1.0](#010)
## 0.3.0 (unreleased) ### The Catch3 runner Catch3 keeps Catch2's API for writing tests and replaces its session, command line and reporters with [a runner of its own](progmasoft-runner.md#top): * Tests run in parallel worker processes; a crash, an exit or a hang ends one test, not the run. * Failures are retried alone to tell deterministic, flaky and order-dependent failures apart; the test that leaves state behind is found by bisection. * A history of verdicts and durations drives quarantine, learned time limits, predictive ordering, incremental runs, replay and analytics. * Tests are selected by change, by past failure or by prediction, and sharded by a stable hash or by recorded duration. * Tags declare serial and isolated tests, shared resources, dependencies, time limits and retries. * Every failure gets a category, a signature, an analysis and a replay command. * Reports are console, JUnit XML, JSON and a Chrome trace; `--list=json` is a versioned discovery format. * Every test gets a temporary directory of its own. ### Breaking changes * Catch2's command line, reporters, `CATCH_REGISTER_REPORTER` and listing were removed; see [the command line](command-line.md#top) and [reports](reporters.md#top). Listeners keep working. * The Catch2 library is compiled as C++20; code that includes only its headers still needs C++14. * The results model in `Progmasoft/Catch3/Results.hpp` was rewritten around tests and attempts. * Conan packaging was dropped. ### Fixes * The property engine's example database can be written by several processes at once. ## 0.2.0 Released 2026-09-24. * Snapshot comparison and update APIs. * Framework-neutral test result summaries and deterministic JUnit XML. * The Progmasoft additions are a static library in every supported build system. ## 0.1.0 Released 2026-09-24. * The first release: a deterministic property-testing API next to the Catch2-compatible engine. * Bazel module metadata, and CMake, Meson, Xmake and Premake builds. --- [Home](Readme.md#top)