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Compilation to JS gets "Cannot find module 'bignumber.js'"

kind: bugCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` labelCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` label

Status: Open.

#6421 In dafny-lang/dafny;

· yaitskov opened on Jan 6, 2026

Verification incompleteness with bit vectors

incompletenessThings that Dafny should be able to prove, but can'tThings that Dafny should be able to prove, but can't

Status: Open.

#6420 In dafny-lang/dafny;

· MikaelMayer opened on Dec 30, 2025

Missing method-reads check in array initializer

difficulty: good-first-issueGood first issuesGood first issues

kind: bugCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` labelCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` label

part: resolverResolution and typecheckingResolution and typechecking

Status: Open.

#6410 In dafny-lang/dafny;

· RustanLeino opened on Dec 4, 2025

Make the Translation keep code comments

kind: enhancementEnhancements, feature requests, etc. These are NOT bugs, but ways we can improve DafnyEnhancements, feature requests, etc. These are NOT bugs, but ways we can improve Dafny

Status: Open.

#6409 In dafny-lang/dafny;

· ben-GDV opened on Dec 4, 2025

map with (literal) set as key treats set element order as significant

kind: bugCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` labelCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` label

Status: Open.

#6408 In dafny-lang/dafny;

· geert56 opened on Dec 3, 2025

<code>ensures false</code> conflicting behavior with and without <code>match</code>

kind: bugCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` labelCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` label

Status: Open.

#6405 In dafny-lang/dafny;

· JohnEdwardJennings opened on Dec 1, 2025

[Possible soundness issue] Bug in Z3 version used by Dafny

during 3: execution of incorrect programAn bug in the verifier that allows Dafny to run a program that does not correctly implement its specAn bug in the verifier that allows Dafny to run a program that does not correctly implement its spec

kind: bugCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` labelCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` label

Status: Open.

Bug

#6401 In dafny-lang/dafny;

· olivier-aws opened on Nov 21, 2025

Improvements to Dafny documentation

part: documentationDafny's reference manual, tutorial, and other materialsDafny's reference manual, tutorial, and other materials

Status: Open.

#6399 In dafny-lang/dafny;

· jfdm opened on Nov 20, 2025

Case where Dafny generates invalid Boogie

during 2: compilation of correct programDafny rejects a valid program during compilationDafny rejects a valid program during compilation

kind: bugCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` labelCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` label

Status: Open.

#6398 In dafny-lang/dafny;

· keyboardDrummer opened on Nov 19, 2025

RID: osx-arm64 != OSX:arm64 once again

kind: bugCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` labelCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` label

Status: Open.

#6397 In dafny-lang/dafny;

· kjx opened on Nov 16, 2025

Compilation to Javascript

kind: bugCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` labelCrashes, unsoundness, incorrect output, etc. If possible, add a `part:` label

Status: Open.

#6392 In dafny-lang/dafny;

· JlnWntr opened on Nov 9, 2025

Proving postcondition for recursive FrequencyTable map construction

Status: Open.

#6391 In dafny-lang/dafny;

· Bhaveshb-bytes opened on Nov 6, 2025