Issues

• Working directory is passed twice to external Setup executables

  Cabal: customcabal-install: customneeds triagetype: bug
  haskell/cabal#12539 · Filter by author sheaf opened on Nov 6, 2026
  

• Clearly separate package-wide and per-component configure via a ConfigFlags split

  Cabal: cmd/configurecabal-install: cmd/configuretype: enhancement
  haskell/cabal#12538 · Filter by author sheaf opened on Nov 6, 2026
  

• 3.18 regression: cabal-install does not honour per-package user-specified paths in cabal.project

  cabal-install: otherre: project-fileregression in 3.18type: bug
  haskell/cabal#12535 · Filter by author sheaf opened on Nov 6, 2026
  

• Prefer cabal-install's Cabal version for build-type: Hooks

  Cabal: hookscabal-install: solvertype: enhancement
  haskell/cabal#12534 · Filter by author sheaf opened on Nov 5, 2026
  1

• Some Cabal library functions ignore their logging handles

  Cabal: otherre: optionstype: bug
  haskell/cabal#12529 · Filter by author sheaf opened on Nov 5, 2026
  

• profiling-detail and library-profiling-detail mixed up since cabal-install 3.12

  cabal-install: cmd/configureneeds triagere: profilingregression in 3.12type: bug
  haskell/cabal#12528 · Filter by author sheaf opened on Nov 5, 2026
  

• Validate ubuntu-latest ghc-9.4.8 fails every time

  needs triagetype: bug
  haskell/cabal#12525 · Filter by author philderbeast opened on Nov 4, 2026
  1

• Partial clone for Git repositories in cabal.project

  cabal-install: source-repository-packagetype: enhancement
  haskell/cabal#12523 · Filter by author thielema opened on Nov 4, 2026
  2

• Too much custom Python?

  needs triagetype: enhancement
  haskell/cabal#12519 · Filter by author philderbeast opened on Nov 3, 2026
  1

• Format and lint .py files with ruff

  needs triagetype: enhancement
  haskell/cabal#12517 · Filter by author philderbeast opened on Nov 3, 2026

• Add an option to build executables (including test suites/benchmarks) using bytecode

  type: enhancement
  haskell/cabal#12515 · Filter by author TeofilC opened on Nov 2, 2026
  1

• Detect all .test.hs or .multitest.hs test scripts

  needs triagetype: enhancement
  haskell/cabal#12506 · Filter by author philderbeast opened on Oct 31, 2026

• cabal-testsuite bare versus v2-prefixed command handling

  needs triagetype: bug
  haskell/cabal#12501 · Filter by author philderbeast opened on Oct 30, 2026
  1

• -f-foo (disable flag foo) is visually ambiguous; consider a clearer spelling and deprecate the old one

  re: optionsre: user experiencetype: discussion
  haskell/cabal#12494 · Filter by author AMDphreak opened on Oct 27, 2026
  2

• Explicitly allow or reject duplicated sections during paring

  Cabal: parsertype: discussiontype: enhancement
  haskell/cabal#12489 · Filter by author leana8959 opened on Oct 26, 2026
  5

• cabal-install reconfigures each time PATH changes

  attention: pr-welcomeblocked: needs reproducercabal-install: cmd/(re)configureregression in 3.16type: bug
  haskell/cabal#12481 · Filter by author sheaf opened on Oct 22, 2026
  2

  

• Extension fields (x-*) for cabal.project

  attention: pr-welcometype: enhancement
  haskell/cabal#12480 · Filter by author fgaz-scrive opened on Oct 22, 2026
  1

• Required version of cabal-install to build Cabal

  documentationtype: discussion
  haskell/cabal#12477 · Filter by author leana8959 opened on Oct 21, 2026
  2

  

• Library shared objects are relinked whenever a dependency is rebuilt, even when no object file changed

  attention: pr-welcometype: bug
  haskell/cabal#12476 · Filter by author michaelpj opened on Oct 20, 2026
  3

• Plan caches hold a copy of the package descriptions for every component

  type: performance
  haskell/cabal#12463 · Filter by author PaleRoses opened on Oct 15, 2026
  2

• The Haskel build crashes on the FreeBSD port finance/hs-hledger-ui

  blocked: needs reproducerneeds triage
  haskell/cabal#12462 · Filter by author yurivict opened on Oct 14, 2026
  4

• RFC: Buck2 backend

  attention: needs-cabal-proposaltype: RFC
  haskell/cabal#12456 · Filter by author simonmar opened on Oct 14, 2026
  6

• Only build actually required parts of dependencies (ghci, cabal build)

  attention: pr-welcomeblocked: ghctype: enhancement
  haskell/cabal#12439 · Filter by author benjaminweb opened on Oct 10, 2026

• Remove options from the help display that don't apply to a command

  attention: pr-welcomere: optionsre: user experiencetype: enhancement
  haskell/cabal#12430 · Filter by author philderbeast opened on Oct 9, 2026
  1

• --[enable|disable]-foo options in help

  attention: pr-welcometype: enhancement
  haskell/cabal#12425 · Filter by author philderbeast opened on Oct 8, 2026
  2