Repository Issue Activity (beta)

#11303 `roc check` passes but `roc build` segfaults when a function returns a record holding an unannotated lambda whose parameter is only constrained by a method call

#11300 `roc check` passes but `roc build` segfaults when a record closure that only returns `Err` has a method called on its `Ok` payload through two generic functions

#11317 Closure capturing a variable bound by an or-pattern hangs or segfaults nightly-2026-09-11; main panics "free locals after checked closure collection"

#11316 Compile-time evaluation of `list.set(i, v) ?? list` in a for loop returns a wrong list; tag-union forms segfault the compiler

#11292 Boxy cannot lower generalized numeral or string literal patterns

#9408 TODO: use llvm for dev builds on 32-bit ARM

#11287 Boxy derives hosted ABI layout from erased TypeRepresentation

#11310 `roc build --opt=dev` trips the ARC invariant `restitution boundary did not carry its exact entry parameter unit` on a `set(...) ?? <same field>` written back into a nested record

#11301 `roc check` passes but `roc build` segfaults when a closure in a record only returns `Err` and a method is called on its `Ok` payload three calls down

#11291 Boxy silently drops nominal backing substitutions based on analysis order

#11290 Boxy treats builtin Set and Dict as declaration-backed nominals

#11289 Boxy constructs imported generic nominal fields from unsubstituted descriptors

#11305 `roc check` and a release build accept a record field annotated `_` holding a lambda that calls `map`, but a safe build trips the derived-map-payload invariant

#11311 Generic Factory Forwarding Check Hangs

#11306 `roc docs` includes internal module in documentation (regression)

#11286 Boxy lowering reuses hosted return local with a different descriptor

#11312 Panic: erroneous checked type reached Monotype instantiation

#11274 working hello world example

#11248 `roc check` rejects a `?` followed by an `if` or `match` whose arms are all `Ok` when the return annotation has a `_` error row

#11302 `roc check`: nondeterministic errors (import source alias / FileNotFound) for same module.

#11294 Boxy statically instantiates nominal descriptors through an intermediate dynamic formal

#11295 Boxy static dispatch loses the runtime source for a generic return descriptor

#11293 Boxy list boundary assigns two descriptors to its target element local

#11299 Panic: dispatch type root was not published

#11298 Unstable formatting