Issues

• [REG master] C++ constructor with default parameter error

  dlang/dmd#23952 · Filter by author tim-dlang opened on Oct 1, 2026

• #pragma pack(push, 8) is ignored for nested union layout in ImportC

  dlang/dmd#23948 · Filter by author Temtaime opened on Sep 30, 2026

• Unsafe CTFE function pointer cast can cause ICE

  dlang/dmd#23947 · Filter by author ntrel opened on Sep 30, 2026
  2

• CTFE: typeid(C).name is not consistent with runtime

  Feature:CTFE
  Bug

  dlang/dmd#23944 · Filter by author dkorpel opened on Sep 30, 2026

• D should save fcw and mxcsr registers between fibers, it may lead to context loss and UB

  dlang/dmd#23927 · Filter by author Supercip971 opened on Sep 26, 2026
  2

• Segfault in __traits(compiles) inside a @safe function when the argument needs a @system copy constructor

  dlang/dmd#23919 · Filter by author pinver opened on Sep 25, 2026

• discrepency toward visibility during implicit casts

  dlang/dmd#23916 · Filter by author CaradasProudfoot opened on Sep 24, 2026
  1

• Cannot interpret pointer cast to enum at compile time

  Bug

  dlang/dmd#23909 · Filter by author dkorpel opened on Sep 23, 2026

• Spurious 'incompatible types' conversion error in 2D array intializer

  Severity:Regression
  Bug

  dlang/dmd#23900 · Filter by author dkorpel opened on Sep 22, 2026
  2

  

• -check=nullderef doesn’t check nested structs

  Bug

  dlang/dmd#23898 · Filter by author Ogi-kun opened on Sep 21, 2026

• DIP1000 accepts escaping stack-backed slice through core.lifetime.forward

  dip1000Severity:safe
  Bug

  dlang/dmd#23878 · Filter by author jmh530 opened on Sep 18, 2026
  1

• Release/nightly builds don't run the validation smoke-tests

  Infrastructure:Continuous Integration
  dlang/dmd#23867 · Filter by author kinke opened on Sep 16, 2026

• can no longer take address or static .init of stat_t.st_mtime

  dlang/dmd#23857 · Filter by author huglovefan opened on Sep 15, 2026
  1

• Unary + vector operation is not supported

  dlang/dmd#23854 · Filter by author Ogi-kun opened on Sep 14, 2026

• Try to make a simpler error message for /++/ containing a string containing +/

  Diagnostic Messages
  Feature

  dlang/dmd#23853 · Filter by author CaradasProudfoot opened on Sep 14, 2026
  3

• Bad error messages when parsing self referencing and a mixin

  dlang/dmd#23847 · Filter by author crazymonkyyy opened on Sep 13, 2026

• [REG master] Can't use C++ new/delete with UCRT MinGW fallback

  dlang/dmd#23813 · Filter by author tim-dlang opened on Sep 8, 2026

• Add is-expression or __traits for Dynamic Arrays

  Feature:traits
  dlang/dmd#23784 · Filter by author LightBender opened on Sep 4, 2026
  7

  

• pragma(inline) ignored in template mixin declaration initializers

  dlang/dmd#23766 · Filter by author limepoutine opened on Sep 1, 2026

• Infinite assert loop with try/finally

  dlang/dmd#23739 · Filter by author Herringway opened on Aug 28, 2026
  12

• Linker error in program that used to work when using 2.113-rc0

  Severity:Regression
  dlang/dmd#23731 · Filter by author deadalnix opened on Aug 28, 2026
  2

• inverse __trait(compiles doesnt accept "recursive expansion" failures

  dlang/dmd#23730 · Filter by author crazymonkyyy opened on Aug 28, 2026

• Spurious "no property" error shown alongside opDispatch instantiation failure

  dlang/dmd#23712 · Filter by author usefahmed07 opened on Aug 27, 2026
  1

• Float truthiness doesn't make sense

  dlang/dmd#23704 · Filter by author rikkimax opened on Aug 26, 2026
  9

• [REG 2.103.1] class allocation reported twice with -profile=gc

  dlang/dmd#23695 · Filter by author tim-dlang opened on Aug 24, 2026