MPTCP Linux Upstream
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Blog for the MPTCP Linux Upstream development, by Matthieu Baerts (matttbe).
Summer update and MPTCP features in Linux v6.18
16 Oct 2025
Summer update and MPTCP features in Linux v6.18
16 Oct 2025
Long time no see (or read?) as we could say! The last update was in January. Since then, we have been very busy! Read on to find out what happened around MPTCP during the last few months, and which
Introducing TCP-in-UDP solution
14 Jul 2025
The MPTCP protocol is complex, mainly to be able to survive on the Internet where middleboxes such as NATs, firewalls, IDS or proxies can modify parts of the TCP packets. Worst case scenario, an
Introducing TCP-in-UDP solution
14 Jul 2025
One year of NGI0 Core support
27 Jan 2025
One year of NGI0 Core support
27 Jan 2025
A bit more than one year ago, I started the Angel Project: improving the “deployability” of Multipath TCP. A project supported by NGI0 Core, a fund established by NLnet. Before starting, I had
More improvements for end users
4 Dec 2024
More improvements for end users
4 Dec 2024
Here is a small update on what happened recently, like various small improvements to help the end users, a new mptcpd version and more to come. Read on to find out more about that!
Summer update
28 Oct 2024
A bit more than 3 months after the last update, I think it is really time to share some updates about MPTCP! I have been quiet recently, not because I was on holiday – even if I should probably
Summer update
28 Oct 2024
Maintainers responsibilities
21 Jul 2024
Last month, I didn’t publish any new blog post here. Not because there was nothing to say, but simply because I was busy. Sadly, not 100% focused on the new tasks I wish to finish implementing, but
Maintainers responsibilities
21 Jul 2024
Open Letter to the European Commission
18 Jul 2024
As mentioned in the About page, this project is currently funded through NGI0 Core, a fund established by NLnet with financial support from the European Commission’s Next Generation Internet
Open Letter to the European Commission
18 Jul 2024
Supporting new users
3 May 2024
During the last few months, a lot of work has been done to help other kernel developers, and stabilize the current solution. It was really time to focus on supporting new users and application
Supporting new users
3 May 2024
CI & new features
8 Apr 2024
The previous post mentioned that February was still full of various “maintenance” tasks, mainly around the backports, and the preparation of the future Linux 6.9. The beginning of March was
CI & new features
8 Apr 2024
Backports
4 Mar 2024
The previous post mentioned that January was still full of various “maintenance” tasks, mainly around the CI, and the various tests we have. These tasks were somehow blocking other devs and
Backports
4 Mar 2024
CI CI CI
2 Feb 2024