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  "path": "/t/exception-annotations-lay-of-the-land/14056#post_1",
  "publishedAt": "2026-05-08T15:06:39.000Z",
  "site": "https://discourse.haskell.org",
  "tags": [
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    "Exception Annotations: Lay of the Land"
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  "textContent": "well-typed.com\n\n### Exception Annotations: Lay of the Land\n\nNew blog post which gives a comprehensive overview of the exception annotation infrastructure, which has been much improved in GHC 9.12, and discuss some things to be aware of. TL;DR: Use ghc 9.12, don’t call `throwIO` on an argument of type `SomeException`, and use your own function instead of `displayException` if you want to see all exception annotations.",
  "title": "Exception Annotations: Lay of the Land"
}