Issues

• ARC/ORC: Option value freed while variable in outer scope aliases it

  nim-lang/Nim#26461 · Filter by author epicbonemanreal opened on Oct 14, 2026

• nimsuggest: after an edit, the VM runs the wrong compile-time proc; regression in devel

  nim-lang/Nim#26457 · Filter by author nitely opened on Oct 14, 2026
  1

  

• asyncnet: TLS hostname is never verified on any platform — AsyncSocket and AsyncHttpClient accept any CA-valid certificate for any hostname

  nim-lang/Nim#26455 · Filter by author CallMeTheArrow opened on Oct 13, 2026
  1

• readLine on a Windows console corrupts memory on Ctrl+C

  nim-lang/Nim#26430 · Filter by author etan-status opened on Oct 10, 2026

• static int64 generic parameter keeps the argument's type, so O[4] is not O[4'i64]

  nim-lang/Nim#26426 · Filter by author etan-status opened on Oct 10, 2026

• Packed tuple and equal unpacked tuple give wrong field values

  Invalid Code Acceptance
  nim-lang/Nim#26424 · Filter by author etan-status opened on Oct 10, 2026
  4

• newWideCString decodes overlong UTF-8 into / and NUL

  nim-lang/Nim#26421 · Filter by author etan-status opened on Oct 9, 2026
  2

• ARC/ORC: copying a large case object overflows the stack in debug builds

  nim-lang/Nim#26416 · Filter by author etan-status opened on Oct 9, 2026

• unicode.strip raises IndexDefect on a string ending in a truncated UTF-8 sequence

  nim-lang/Nim#26415 · Filter by author etan-status opened on Oct 9, 2026

• times.parse raises RangeDefect instead of TimeParseError for minute 60-99 or second 61-99

  nim-lang/Nim#26408 · Filter by author etan-status opened on Oct 9, 2026
  

• static parameter holding NimNode values: internal error outside macros

  nim-lang/Nim#26403 · Filter by author etan-status opened on Oct 8, 2026

• hasCustomPragma returns false for field of alias of generic instance

  nim-lang/Nim#26401 · Filter by author etan-status opened on Oct 8, 2026

• getTypeInst leaks a type alias local to another proc

  nim-lang/Nim#26399 · Filter by author etan-status opened on Oct 8, 2026
  1

• more hashing methods for macros than just for symbols

  Feature
  nim-lang/Nim#26398 · Filter by author metagn opened on Oct 8, 2026

• nimsuggest error when using CacheTable from macrocache

  nim-lang/Nim#26380 · Filter by author nitely opened on Oct 8, 2026
  

• yield in expression in closure iterator creates incorrect results

  nim-lang/Nim#26355 · Filter by author tersec opened on Oct 6, 2026

• finally sees a variable assigned from a call that raised in --mm:orc

  nim-lang/Nim#26333 · Filter by author etan-status opened on Oct 4, 2026
  1

• -d:useMalloc doesn't check malloc/calloc/realloc for nil outside Zephyr

  nim-lang/Nim#26331 · Filter by author drewbitt opened on Oct 3, 2026

• asynchttpserver: maxBody is not enforced for chunked request bodies

  nim-lang/Nim#26325 · Filter by author Zectbumo opened on Oct 3, 2026

• Uses of compiles in the standard library

  nim-lang/Nim#26314 · Filter by author metagn opened on Oct 2, 2026

• compiles(someGeneric) uses unbounded memory during compilation

  nim-lang/Nim#26308 · Filter by author tersec opened on Oct 1, 2026
  3

• getCursorPos() from std/terminal is off by one on POSIX

  nim-lang/Nim#26301 · Filter by author inverimus opened on Sep 30, 2026

• --nimcache / --outdir paths containing $ are never made absolute

  nim-lang/Nim#26296 · Filter by author etan-status opened on Sep 29, 2026
  1

• nimsuggest crashes when suggesting module names

  nim-lang/Nim#26277 · Filter by author red-rj opened on Sep 24, 2026
  2

• fatal error: invalid kind for firstOrd(tyEmpty)Think about the title, twice.

  nim-lang/Nim#26254 · Filter by author planmac opened on Sep 20, 2026
  1