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<code>case</code> with <code>if</code> can be wrong when JavaScript codegen has <code>instanceof</code>

Status: Open.

#5254 In gleam-lang/gleam;

· tynanbe opened on Jan 1, 2026

<code>assert</code> codegen bug on JavaScript with binary operator after <code>&amp;&amp;</code>

Status: Open.

#5251 In gleam-lang/gleam;

· 00-kat opened on Jan 1, 2026

Compiler error message for wrongly using &gt; instead of &gt;. on floats in a case expression

good first issueGood for newcomersGood for newcomers

help wantedContributions encouragedContributions encouraged

Status: Open.

#5238 In gleam-lang/gleam;

· winks opened on Dec 31, 2025

Gleam type inference issue with anonymous functions in use expressions

Status: Open.

#5236 In gleam-lang/gleam;

· kadei-rat opened on Dec 29, 2025

LSP: support Go to Type Definition for type aliases

help wantedContributions encouragedContributions encouraged

Status: Open.

#5227 In gleam-lang/gleam;

· jeffreymorrisondev opened on Dec 27, 2025

Formatter reoders comments inside function types

Status: Open.

#5225 In gleam-lang/gleam;

· abs0luty opened on Dec 26, 2025

Segmentation fault when compiling 73 or more int decoders

help wantedContributions encouragedContributions encouraged

Status: Open.

Bug

#5222 In gleam-lang/gleam;

· dinkelspiel opened on Dec 25, 2025

Confusing error message when adding a nonexistent package

Status: Open.

#5218 In gleam-lang/gleam;

· miguejarias opened on Dec 23, 2025

Improve error message when failing to publish a package

Status: Open.

#5217 In gleam-lang/gleam;

· GearsDatapacks opened on Dec 23, 2025

Fill labels code action: Do not add <code>todo</code> when a variable is in scope with the same name

good first issueGood for newcomersGood for newcomers

help wantedContributions encouragedContributions encouraged

Status: Open.

Feature

#5213 In gleam-lang/gleam;

· lpil opened on Dec 21, 2025

Inconsistent behaviour with <code>bytes</code> and <code>unit</code> options

Status: Open.

#5208 In gleam-lang/gleam;

· GearsDatapacks opened on Dec 18, 2025

Compiler crash after editing gleam.toml to use remote version of package, but not editing manifest.toml

Status: Open.

#5200 In gleam-lang/gleam;

· vistuleB opened on Dec 12, 2025