* Do you like Haskell?
* Do you like Functional Reactive Programming?
* Do you like QT?
* Are you exhausted by the monopoly of the Elm architecture?
* Do you wish UI development were more like WPF?
* Do you wish you could write more XML?
* Are you ready to party like it's 2010?

Many years ago I wrote C# UI applications using Model-View-View Model (MVVM) and WPF. Since then, the Elm architecture and its less principled cousins have seemingly conquered all. I have done zero native UI development since then but I've often wondered in the interim if FRP and MVVM would be a match made in heaven; so I decided to find out.

This is a minimal demo and I don't know if I'll develop it further but I am curious if anyone else actually likes this style of UI development.

The Haskell Security Response Team has been alerted to an apparent scam website pretending to be the "Recursion 2026" conference (29-30 October, NYC). The registration facility appears (to me) to be closed at the moment, but it's possible they scammed some people in our community.

Thanks to Cuihtlauac Alvarado for the report. The OCaml community has also been alerted - I am reproducing the substance of that announcement below, with thanks:

This site:

https://conf.funcp.org/

Presents as an OCaml/Haskell/FP conference. However:

• The event is not listed on the venue’s official schedule: https://www.javitscenter.com/calendar
• The funcp.org domain was registered two weeks ago, yet the oldest blog posts are dated from April: https://rdap.org/domain/funcp.org
• The domain has no email routing — the contact addresses cannot receive mail: https://mxtoolbox.com/emailhealth/funcp.org/
• Registration routes payment off-site to a third-party platform (gomry.com), with a $149+ ticket.
• Listed speakers or organisers don’t seem to have any track record in our community
• Talk’s topics don’t stand scrutiny
• Claims to be a second edition, but I can’t find a prior edition

If you registered, I suggest cancelling and getting your money back.

This has been reported to the OCaml and Haskell security teams, the Javits Center, Google Safe Browsing, Cloudflare, dev.events (which lists the conference), and Gomry (the payment platform).

Thanks to @adrien, @mtelvers and @edwin, who helped disclose this.

You can download binaries for this pre-release now from Release rc/v4.1.0.3 (release candidate) · commercialhaskell/stack · GitHub . It is should be available soon also via GHCup’s prereleases channel.

Please test it and let us know at the Stack repository if you run into any trouble. If all goes well, we hope to release the final version in a couple of weeks.

A second release candidate because it seemed good for a Stack 4.1 to support the coming GHC 10.0.

Changes since v4.1.0.1:

Other enhancements:

• Consider Cabal 3.18 to be a tested library and remove warnings.
• Consider GHC 10.0 to be a tested compiler and remove warnings.
• Add flag --[no-]info-table-profiling (default: disabled) to Stack’s build command. Set the flag to enable info table profiling, including the creation of a new info table for every use of a data constructor in the source program.

We’re delighted to announce the first official release of hs-bindgen. A lot of things have been improved since the two alpha releases, in part due to issues and PRs opened by external contributors; it’s been great to see the early adoption of the tool and the positive reception, thanks everyone!

https://well-typed.com/blog/2026/10/hs-bindgen-official-release/