Call for proposals for the
Haskell Implementors’ Workshop
June 5, 2026
Organized by the Haskell Community
Co-located with ZuriHac 2026 and Haskell Ecosystem Workshop 2026
Hosted by the Haskell Foundation
at Eastern Switzerland University of Applied Sciences (OST)
Overview
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Deadline: April 10, 2026
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Notification: May 8, 2026
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Workshop: June 5, 2026
The 18th Haskell Implementors’ Workshop is to be held on June 5th 2026 alongside ZuriHac and the Haskell Ecosystom Workshop near Zurich. The event is organized by the Haskell Community and hosted by the Haskell Foundation at the University of Applied Sciences of Eastern Switzerland (OST) lakeside campus in Rapperswil, Switzerland. It is a forum for people involved in the design and development of Haskell implementations, tools, libraries, and supporting infrastructure to share their work and to discuss future directions and collaborations with others.
In the past the Haskell Implementors’ Workshop was co-located with ICFP (International Conference on Functional Programming). However, in recent years it has become more and more challenging to attract a large enough audience and sufficiently many speakers for an appealing program. ZuriHac and the Haskell Ecosystem Workshop have become an important annual gathering of a large part of the Haskell community. Following last year’s success, the Haskell Implementors’ Workshop will again be co-located with these events to be accessible to a broader audience.
Scope and Target Audience
The Haskell Implementors’ Workshop is an ideal place to describe a Haskell extension, describe works-in-progress, demo a new Haskell-related tool, or even propose future lines of Haskell development. Members of the wider Haskell community are encouraged to attend the workshop - we need your feedback to keep the Haskell ecosystem thriving. Students working with Haskell are especially encouraged to share their work.
The scope covers any of the following topics. There may be some topics that people feel we’ve missed, so by all means submit a proposal even if it doesn’t fit exactly into one of these buckets:
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Compilation techniques
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Language features and extensions
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Type system implementation
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Concurrency and parallelism: language design and implementation
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Performance, optimization and benchmarking
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Virtual machines and run-time systems
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Libraries and tools for development or deployment
Talks
We invite proposals from potential speakers for talks and demonstrations. We are aiming for 20-minute talks with 5 minutes for questions and changeovers. We want to hear from people writing compilers, tools, or libraries, people with cool ideas for directions in which we should take the platform, proposals for new features to be implemented, and half-baked crazy ideas. Please submit a talk title and abstract of no more than 300 words.
We will also have a lightning talks session. Lightning talks should be ~7mins and are scheduled on the day of the workshop. Suggested topics for lightning talks are to present a single idea, a work-in-progress project, a problem to intrigue and perplex Haskell implementors, or simply to ask for feedback and collaborators.
Submissions can be made via the following form until April 10, 2026 (anywhere on earth): https://forms.gle/S8fpAgFaFEvqoMqH6
Authors will be notified about the inclusion of their proposal in the final program by May 8, 2026.
Program Committee
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Andrew Lelechenko
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Avi Press
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Christiaan Baaij (chair)
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Gergo Erdi
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Jeffrey Young
Contact
- Christiaan Baaij