ACM SIGPLAN Haskell Implementors' Workshop
https://icfp23.sigplan.org/home/hiw-2023
Seattle, Washington, United States, September 4, 2023
Co-located with ICFP 2023
https://icfp23.sigplan.org/
Important dates
---------------
Deadline: July 4, 2023 (AoE)
Notification: August 4, 2023
Workshop: September 4, 2023
The 15th Haskell Implementors' Workshop is to be held alongside ICFP
2023 this year in Seattle. 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.
Talks and/or demos are proposed by submitting an abstract, and
selected by a small program committee. There will be no published
proceedings. The workshop will be informal and interactive, with
open spaces in the timetable and room for ad-hoc discussion, demos,
and short lightning talks.
Scope and target audience
-------------------------
It is important to distinguish the Haskell Implementors' Workshop from
the Haskell Symposium which is also co-located with ICFP 2023. The
Haskell Symposium is for the publication of Haskell-related research. In
contrast, the Haskell Implementors' Workshop will have no proceedings --
although we will aim to make talk videos, slides, and presented data
available with the consent of the speakers.
The 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:
* Compilation techniques
* Language features and extensions
* Type system implementation
* Concurrency and parallelism: language design and implementation
* Performance, optimisation and benchmarking
* Virtual machines and run-time systems
* 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.
Submissions can be made via HotCRP at https://icfphiw23.hotcrp.com
until July 4 (anywhere on earth).
We will also have a lightning talks session. These have been very well
received in recent years, and we aim to increase the time available to
them. 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.
Program Committee
-----------------
* Gergő Érdi (Standard Chartered Bank)
* Sebastian Graf (Karlsruhe Institute of Technology)
* Wen Kokke (University of Strathclyde)
* Ryan Scott (Galois, Inc.)
* Rebecca Skinner (Mercury)
* Li-yao Xia (University of Edinburgh)
Contact
-------
* Ryan Scott <ryan.gl.scott at gmail.com>
The GHC team is very pleased to announce the availability of the first
(and likely final) release candidate of GHC 9.6.1. As usual, binaries
and source distributions are available at
[downloads.haskell.org](https://downloads.haskell.org/ghc/9.6.1-rc1/).
Beginning with GHC 9.6.1, GHC can be built as a cross-compiler to
WebAssembly and JavaScript. This is an important step towards robust
support for compiling Haskell to the Web, but there are a few caveats to
be aware of in the 9.6 series:
- Both the Javascript and WebAssembly backends are still at an early
stage of development and are present in this release as a technology
preview
- Using GHC as a cross-compiler is not as easy as we would like it to
be; in particular, there are challenges related to Template Haskell
- GHC is not yet run-time retargetable; a given GHC binary targets
exactly one platform, and both WebAssembly and JavaScript are
considered platforms for this purpose. Cross-compilers must be built
from source by their users
We hope to lift all of these limitations in future releases.
Additionally, 9.6.1 will include:
- Significant latency improvements in the non-moving garbage collector
- Efficient runtime support for delimited continuations
- Improvements in compiler error messages
- Numerous improvements in the compiler's memory usage
See the [release notes][] for a comprehensive accounting of changes in
this release.
As always, one can find a migration guide to aid in transitioning from
older releases on the [GHC Wiki][migration-guide]. We have also recently
started extending our release process to cover a wider set of Linux
distributions. In particular, we now offer Rocky 8 and Ubuntu 20.04
binary distributions which cover RedHat-derivative and distributions
using older `glibc` releases (namely 2.27), respectively.
Please do give this release a try and open a [ticket][] if you see
anything amiss. If all goes well we expect the final release should be
available by late next week.
Happy Haskelling,
~ Ben
[ticket]: https://gitlab.haskell.org/ghc/ghc/issues/
[migration-guide]: https://gitlab.haskell.org/ghc/ghc/-/wikis/migration/9.6
[release notes]: https://downloads.haskell.org/ghc/9.6.1-rc1/docs/users_guide/9.6.1-notes.ht…
