Issues

• Use of In_channel.input_all prevents compiling files >= 16 MB on 32-bit architectures

  ocaml/ocaml#15125 · Filter by author glondu opened on Oct 1, 2026
  7

• Polymorphic parameters are not documented

  documentation
  ocaml/ocaml#15123 · Filter by author OlivierNicole opened on Sep 30, 2026
  3

• Recursive module declarations and type constraints parsing inconsistency

  ocaml/ocaml#15087 · Filter by author 314eter opened on Sep 19, 2026
  1

  

• Runtime_events producer: missing bounds check on user event write

  ocaml/ocaml#15074 · Filter by author edwintorok opened on Sep 15, 2026
  2

  

• merge flexdll within the compiler repository

  ocaml/ocaml#15058 · Filter by author gasche opened on Sep 10, 2026
  2

  

• Re-exporting ADT gets rejected due to arity change

  ocaml/ocaml#15053 · Filter by author samsa1 opened on Sep 9, 2026
  2

  

• Stop-the-world barriers take seconds on Windows when a domain repeatedly enters and leaves a blocking section

  multicorePerformanceruntime-system
  ocaml/ocaml#15042 · Filter by author daniel-larraz opened on Sep 5, 2026
  9

• In-prefix tests fail in Windows CI

  ocaml/ocaml#15040 · Filter by author OlivierNicole opened on Sep 4, 2026
  

• invalid unwind info in ocamlopt binaries in the stack reallocation path

  ocaml/ocaml#15037 · Filter by author alk opened on Sep 2, 2026
  9

  

• Runtime events spam during full major collection

  ocaml/ocaml#15024 · Filter by author ngorogiannis opened on Aug 27, 2026
  2

  

• Tsan fails when configured with both --enable-flambda and --enable-tsan

  ocaml/ocaml#15014 · Filter by author tmcgilchrist opened on Aug 20, 2026
  4

  

• Update "Polymorphism and its limitations" manual chapter for OCaml 5.5

  documentation
  ocaml/ocaml#15013 · Filter by author Merlin04 opened on Aug 19, 2026
  1

  

• runtime_events: constructor indices are wire format and the header version does not track them

  ocaml/ocaml#15011 · Filter by author tmcgilchrist opened on Aug 18, 2026
  5

  

• Atomic locs allow unsound writes to polymorphic record fields

  ocaml/ocaml#14987 · Filter by author rtjoa opened on Aug 5, 2026
  1

  

• int Atomic.t introduces polling points and calls to caml_atomic_fetch_add_field

  ocaml/ocaml#14976 · Filter by author edwintorok opened on Jul 31, 2026
  4

  

• Per domain timeouts

  feature-wish
  ocaml/ocaml#14955 · Filter by author ajbt200128 opened on Jul 23, 2026
  2

• Handling of bigarray subarrays in Gc.Memprof

  feature-wish
  ocaml/ocaml#14938 · Filter by author edwintorok opened on Jul 16, 2026
  2

  

• Scanf.unescaped fails on perfectly cromulent escaped strings ?

  enhancementfeature-wishstdlib
  ocaml/ocaml#14930 · Filter by author chetmurthy opened on Jul 13, 2026
  3

  

• Functional updates of atomic records don't emit atomic loads

  ocaml/ocaml#14918 · Filter by author rtjoa opened on Jul 7, 2026
  7

  

• GCC 14.4 broke C++ support with the Cygwin backend

  ocaml/ocaml#14911 · Filter by author kit-ty-kate opened on Jul 7, 2026
  5

  

• The compiler seems to loop on file involving type identities and polymorphic variants

  ocaml/ocaml#14905 · Filter by author glondu opened on Jul 3, 2026
  4

  

• Equate two abstract types of a signature

  feature-wishtyping-modules
  ocaml/ocaml#14903 · Filter by author Janno opened on Jul 2, 2026
  1

• Add Atomic.compare_and_exchange

  feature-wishstdlib
  ocaml/ocaml#14889 · Filter by author dbuenzli opened on Jun 26, 2026
  1

  

• OCaml 5.2 regression: Inlining of local closure variables

  ocaml/ocaml#14876 · Filter by author giltho opened on Jun 22, 2026
  20

  

• Gc.compact memory leak when vm.max_map_count is exceeded on 5.x

  ocaml/ocaml#14865 · Filter by author edwintorok opened on Jun 15, 2026
  5