Repository Issue Activity (beta)

crystal-lang/crystal

Current issue state, recent activity, and per-issue timelines from the indexed issue data.

Open Issues
534
New in 7 Days
6
Closed in 7 Days
8
Average Open Age
992 days
Stale 30+ Days
497
Stale 90+ Days
454
Last 2 Weeks
DateOpenedClosedCommentsEventsOpen Backlog
2026-06-0610261
2026-06-05217273
2026-06-0412042
2026-06-03045123
2026-06-0210244
2026-06-01007214
2026-05-3111012
2026-05-3000001
2026-05-291212197
2026-05-281311195
2026-05-2711253
2026-05-26208179
2026-05-2510021
2026-05-2401351
This Week

Opened: 6

Closed: 8

Comments: 23

Events: 75

Top Labels
kind:bug (508)
kind:feature (321)
status:discussion (265)
topic:compiler:semantic (76)
topic:stdlib:networking (65)
platform:windows (56)
topic:stdlib:collection (56)
topic:stdlib:system (54)
Issue Explorer
IssueAuthorStateLabelsCommentsReactionsUpdated

#17048 macro inherited runs after included modules are merged

Opened 7 hours ago
stakach
open
kind:bug
201 hour ago

#17046 `ENV` propagation broken when spawining process with `clear_env: true` on MSYS2

Opened 21 hours ago
straight-shoota
closed - completed
kind:bug
topic:stdlib:system
platform:windows-gnu
2015 hours ago

#10598 Binding to C flexible array members

Opened 5 years ago
nickbclifford
open
kind:feature
topic:lang
14015 hours ago

#17045 `when Foo, Bar` creates a union `Foo | Bar`

Opened 22 hours ago
straight-shoota
open
kind:feature
status:discussion
topic:compiler:semantic
1322 hours ago

#17044 BUG: no target defs when a closure inside a case branch matching uninstantiated generic types is passed to OptionParser#on

Opened 1 day ago
naqvis
open
kind:bug
topic:compiler:semantic
1022 hours ago

#12735 Dependency Dashboard

Opened 4 years ago
renovate[bot]
open
topic:infrastructure
002 days ago

#17017 [CI] Windows runners update for VS 2026

Opened 9 days ago
straight-shoota
closed - completed
topic:infrastructure/ci
112 days ago

#3937 Explain why you can't inherit from String

Opened 9 years ago
matiasgarciaisaia
closed - completed
kind:docs
good first issue
community:to-document
052 days ago

#10831 `is_a?(T)` can break further type filtering if `T` is an uninstantiated generic

Opened 5 years ago
HertzDevil
closed - completed
kind:bug
topic:compiler:semantic
topic:compiler:generics
222 days ago

#2787 enum class like in Rust

Opened 10 years ago
kostya
closed - completed
topic:compiler
status:draft
653 days ago

#3718 Splat tuple inside tuple literal

Opened 9 years ago
kostya
closed - completed
kind:feature
topic:compiler
status:accepted
1203 days ago

#17041 `bin/crystal` vs `.build/crystal`

Opened 3 days ago
straight-shoota
open
topic:infrastructure
status:discussion
303 days ago

#13894 `root` property of `JSON::Field` should support nested keys

Opened 3 years ago
straight-shoota
open
kind:feature
good first issue
help wanted
133 days ago

#17036 Memory leak in XML::Node#each_namespace: xmlGetNsList result never freed

Opened 5 days ago
usiegj00
closed - completed
kind:bug
topic:stdlib:serialization
013 days ago

#15516 [CI] mingw-w64 workflow testing a fresh compiler

Opened 1 year ago
straight-shoota
open
topic:infrastructure/ci
903 days ago

#2803 Request for generic alias

Opened 10 years ago
davy-tw
open
kind:feature
topic:compiler
topic:lang:type-system
14354 days ago

#16873 Add `ignore` and `ignore_deserialize` properties to `URI::Params::Field`

Opened 1 month ago
Fijxu
open
kind:feature
good first issue
help wanted
155 days ago

#14687 Allocation of non-zeroed memory for performance boost

Opened 2 years ago
straight-shoota
open
kind:feature
performance
topic:stdlib:runtime
1815 days ago

#17009 Chain spec expecations with `#should` and `#should_not`

Opened 10 days ago
straight-shoota
closed - completed
kind:feature
status:discussion
topic:stdlib:specs
016 days ago

#17026 Formatter bug re: multiline calls with heredoc argument

Opened 8 days ago
Sija
open
kind:bug
topic:tools:formatter
007 days ago

#16614 `Process.run(shell: true)` should be a separate method (or removed)

Opened 4 months ago
straight-shoota
open
kind:bug
status:discussion
topic:stdlib:system
1538 days ago

#14677 Non-atomic memory is cleared twice

Opened 2 years ago
BlobCodes
open
kind:bug
topic:compiler:codegen
1218 days ago

#14288 Implement new UUID versions (V6, V7, V8)

Opened 2 years ago
philipp-kempgen
closed - completed
kind:feature
help wanted
topic:stdlib:text
268 days ago

#14802 Third-party library repositories on Windows CI

Opened 2 years ago
HertzDevil
open
status:discussion
platform:windows
topic:infrastructure/ci
808 days ago

#16972 Codegen debug specs are failing with LLVM 23

Opened 20 days ago
straight-shoota
closed - completed
kind:bug
topic:stdlib:llvm
008 days ago

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