Welcome to ReactOS

Carl Bialorucki hired to improve ReactOS test suite

Hi, my name is Carl J. Bialorucki. I started making a name for myself in the ReactOS community by contributing several shell improvements. In May of 2024 I was added to the core development team and in March of 2025 I led the release of ReactOS 0.4.15 after the previous release manager was unable to continue working on the project.

I’m pleased to announce that I was hired for a full-time contract position with ReactOS Deutschland e.V. in May of 2025.

ReactOS 0.4.15 released

We are pleased to announce the release of ReactOS 0.4.15! This release offers Plug and Play fixes, audio fixes, memory management fixes, registry healing, improvements to accessories and system tools including Notepad, Paint, RAPPS, the Input Method Editor, and shell improvements. We chose to release this version of ReactOS in honor of Eric Kohl’s first commit to the ReactOS code base, which dates back to 1999. Eric Kohl is the oldest active contributor of the project, and this is his 26th ReactOS anniversary!

Newsletter 104 - April/May news

Greetings from the ReactOS Team! This year, we will start with a short summary highlighting ongoing work on the project as well as announcing the selection of our brand new developers. We will also talk about the current situation with symmetric multiprocessing (SMP) support in ReactOS. Development team enlargement Over the last decade, the number of people in the project team base has not changed much. While development continued and still continues as usual, the development team hadn’t seen any increase in new developers.

1st-stage GUI setup, Part 3 - December 2023: First tests

Greetings! Welcome to the third blog of the series “1st-stage GUI setup”: September 2023: Partly Wine-syncing setupapi October-November 2023: Making partitioning UI work December 2023: First tests In this third blog post, I will cover my work done during the month of December 2023: testing the whole 1st-stage GUI setup, together with the partially wine-synced setupapi dll. Finishing and testing the partitioning page UI The first week was devoted to finally putting together the code for manipulating partitions from the user interface, using the new workflow, and testing it.