Issues

• Wordle clone tutorial library installation is outdated

  bug
  unisonweb/unison#6325 · Filter by author DavidDTA opened on Oct 27, 2026

• Deleting an update branch crashes

  bug
  unisonweb/unison#6320 · Filter by author etorreborre opened on Oct 22, 2026

• ucm mcp gives two different new types the same hash

  unisonweb/unison#6318 · Filter by author zitongcharliedeng opened on Oct 21, 2026

• ucm help should not suggest running unison

  bug
  unisonweb/unison#6316 · Filter by author DavidDTA opened on Oct 20, 2026

• Typechecking a wide overloaded-operator expression is superlinear in time and memory (4,000 + terms: 40 s, 28 GB)

  unisonweb/unison#6312 · Filter by author JavaDerek opened on Oct 19, 2026
  1

• How does Unison handle a scratch based on an older version?

  unisonweb/unison#6268 · Filter by author zitongcharliedeng opened on Sep 19, 2026
  2

• Comments silently dropped on update

  unisonweb/unison#6262 · Filter by author zitongcharliedeng opened on Aug 4, 2026
  2

• Profiler conflates FFI symbol names

  bug
  unisonweb/unison#6261 · Filter by author lJoublanc opened on Aug 1, 2026
  1

• ucm edit/load (no modification) fails when kinds have transitive dependencies.

  bug
  unisonweb/unison#6259 · Filter by author lJoublanc opened on Jun 29, 2026
  2

• Graph.build crashes with array-write-out-of-bounds on duplicate input keys

  unisonweb/unison#6250 · Filter by author naga-zoom opened on Jun 18, 2026

• pass offset arrays/pointers via FFI

  feature request
  unisonweb/unison#6248 · Filter by author lJoublanc opened on Jun 9, 2026
  4

• hashing Pinned or Ptr results in foreign value error.

  bug
  unisonweb/unison#6241 · Filter by author lJoublanc opened on May 29, 2026
  1

• Private channel for reporting a security issue

  unisonweb/unison#6240 · Filter by author Wang-Haimin opened on May 29, 2026
  4

• InLocal called with bad handler reference

  bugruntime
  unisonweb/unison#6212 · Filter by author kubukoz opened on Mar 28, 2026
  

• Inferred type signature fails to unify ability type-params

  bug
  unisonweb/unison#6207 · Filter by author ChrisPenner opened on Mar 27, 2026
  2

  

• Uh oh, an unexpected exception brought the process down!

  bug
  unisonweb/unison#6198 · Filter by author dg1sbg opened on Mar 20, 2026

• Attestation scripts in CI should not compare directly against STDOUT

  bug
  unisonweb/unison#6190 · Filter by author ChrisPenner opened on Mar 17, 2026

• CI Attestation Source Hash doesn't match.

  bug
  unisonweb/unison#6189 · Filter by author ChrisPenner opened on Mar 17, 2026
  

• Possible UCM hashing/reproducibility issue?

  bug
  unisonweb/unison#6185 · Filter by author kubukoz opened on Mar 15, 2026
  1

• doc literals: commas/periods do strange things

  bug
  unisonweb/unison#6184 · Filter by author kubukoz opened on Mar 12, 2026
  1

• PatternMatchFailure on nested case of Requests continuations

  bug
  unisonweb/unison#6183 · Filter by author lJoublanc opened on Mar 8, 2026

• Access to main thread on macOS for creating a WGPU and GLFW based GUI

  feature request
  unisonweb/unison#6182 · Filter by author dg1sbg opened on Mar 6, 2026

• Reflection-roundtrip bug happening when chaining is not used

  bug
  unisonweb/unison#6177 · Filter by author Baccata opened on Feb 27, 2026

• UCM Process Memory Growth + Defunct Children in Long-Lived Sessions

  bug
  unisonweb/unison#6175 · Filter by author bbarker opened on Feb 22, 2026
  

• credentials.json created with world read permissions

  bugP1Security
  Bug

  unisonweb/unison#6173 · Filter by author stew opened on Feb 21, 2026