LTS Haskell: Version your Ecosystem
LTS (Long Term Support) Haskell is a curated set of packages which includes non-breaking point releases. It is a companion to Stackage Nightly: whereas Stackage Nightly releases include potentially breaking changes with each new release, LTS Haskell maintains major version stability for a longer period of time.
As usual, to start using LTS Haskell, you typically need to run
https://www.stackage.org/lts/cabal.config in your package
directory. More detailed instructions are available on the LTS Haskell 2 page itself.
This release is significant in that it is the first major version bump we've performed on LTS Haskell. I'm also happy to note that, despite some earlier concerns, both primitive 0.6 and blaze-builder 0.4 made it in, thanks to last minute patches by Emanuel Borsboom, Simon Meier, Edward Kmett, and Gregory Collins.
I'm also happy to announce that, in the three months since LTS 1 was released, there has been a significant surge in involvement from the community. For comparison:
|Measurement||LTS 1.0||LTS 2.0|
I'm excited to see the community embrace this project so fully, and look forward to the trend continuing.
The current plan is to target the LTS 3.0 release some time around August, depending on when the Hackage ecosystem updates to GHC 7.10 fully. The goal is to make sure the 3.0 is switched over to GHC 7.10.
In addition, Daniel Bergey sent an email which resulted in some questions from me about how we should plan and communicate around LTS major bumps. To summarize my goals and ideas:
I don't want to make any of these decisions myself, as they're pretty central to how the LTS ecosystem is going to operate. If you have thoughts on any of these points- or on points I haven't raised- please bring them up on the Stackage mailing list and/or Reddit.
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