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Draft release notes for 1.91
#147010 ·
Mark-Simulacrum
opened
on Sep 25, 2025
19
Issues
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state
:
open
label
:
PG-exploit-mitigations
state:open label:PG-exploit-mitigations
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Open
Closed
More robust stack protector testing
PG-exploit-mitigations
Project group: Exploit mitigations
Project group: Exploit mitigations
S-waiting-on-review
Status: Awaiting review from the assignee but also interested parties.
Status: Awaiting review from the assignee but also interested parties.
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
Relevant to the compiler team, which will review and decide on the PR/issue.
Status: Open (in progress).
rust-lang/rust
number 147115
#147115
In rust-lang/rust;
·
cezarbbb
opened
on Sep 28, 2025
Stabilize stack-protector
A-LLVM
Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.
Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.
disposition-merge
This issue / PR is in PFCP or FCP with a disposition to merge it.
This issue / PR is in PFCP or FCP with a disposition to merge it.
PG-exploit-mitigations
Project group: Exploit mitigations
Project group: Exploit mitigations
proposed-final-comment-period
Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off.
Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off.
S-waiting-on-review
Status: Awaiting review from the assignee but also interested parties.
Status: Awaiting review from the assignee but also interested parties.
T-bootstrap
Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
Relevant to the compiler team, which will review and decide on the PR/issue.
Status: Open (in progress).
rust-lang/rust
number 146369
#146369
In rust-lang/rust;
·
arielb1
opened
on Sep 9, 2025
Add field representing types
A-LLVM
Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.
Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.
A-rustdoc-json
Area: Rustdoc JSON backend
Area: Rustdoc JSON backend
F-field_projections
`#![feature(field_projections)]`
`#![feature(field_projections)]`
I-lang-radar
Items that are on lang's radar and will need eventual work or consideration.
Items that are on lang's radar and will need eventual work or consideration.
PG-exploit-mitigations
Project group: Exploit mitigations
Project group: Exploit mitigations
S-waiting-on-author
Status: This is awaiting some action (such as code changes or more information) from the author.
Status: This is awaiting some action (such as code changes or more information) from the author.
T-clippy
Relevant to the Clippy team.
Relevant to the Clippy team.
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
Relevant to the compiler team, which will review and decide on the PR/issue.
T-libs
Relevant to the library team, which will review and decide on the PR/issue.
Relevant to the library team, which will review and decide on the PR/issue.
T-rustdoc
Relevant to the rustdoc team, which will review and decide on the PR/issue.
Relevant to the rustdoc team, which will review and decide on the PR/issue.
T-rustdoc-frontend
Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.
Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.
T-rustfmt
Relevant to the rustfmt team, which will review and decide on the PR/issue.
Relevant to the rustfmt team, which will review and decide on the PR/issue.
WG-trait-system-refactor
The Rustc Trait System Refactor Initiative (-Znext-solver)
The Rustc Trait System Refactor Initiative (-Znext-solver)
Status: Open (in progress).
rust-lang/rust
number 146307
#146307
In rust-lang/rust;
·
BennoLossin
opened
on Sep 7, 2025
Don't evaluate the sanitizer attribute if no sanitizer is enabled
A-attributes
Area: Attributes (`#[…]`, `#![…]`)
Area: Attributes (`#[…]`, `#![…]`)
PG-exploit-mitigations
Project group: Exploit mitigations
Project group: Exploit mitigations
S-waiting-on-review
Status: Awaiting review from the assignee but also interested parties.
Status: Awaiting review from the assignee but also interested parties.
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
Relevant to the compiler team, which will review and decide on the PR/issue.
Status: Open (in progress).
rust-lang/rust
number 145679
#145679
In rust-lang/rust;
·
1c3t3a
opened
on Aug 20, 2025
compiletest: Require explicit <code>--filecheck-prefixes</code>
A-compiletest
Area: The compiletest test runner
Area: The compiletest test runner
A-testsuite
Area: The testsuite used to check the correctness of rustc
Area: The testsuite used to check the correctness of rustc
PG-exploit-mitigations
Project group: Exploit mitigations
Project group: Exploit mitigations
rla-silenced
Silences rust-log-analyzer postings to the PR it's added on.
Silences rust-log-analyzer postings to the PR it's added on.
S-waiting-on-author
Status: This is awaiting some action (such as code changes or more information) from the author.
Status: This is awaiting some action (such as code changes or more information) from the author.
T-bootstrap
Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
Relevant to the compiler team, which will review and decide on the PR/issue.
Status: Draft (not ready).
rust-lang/rust
number 145428
#145428
In rust-lang/rust;
·
tgross35
opened
on Aug 15, 2025
CFI: Fix types that implement Fn, FnMut, or FnOnce
A-control-flow-integrity
Area: Control Flow Integrity (CFI) security mitigation
Area: Control Flow Integrity (CFI) security mitigation
A-sanitizers
Area: Sanitizers for correctness and code quality
Area: Sanitizers for correctness and code quality
PG-exploit-mitigations
Project group: Exploit mitigations
Project group: Exploit mitigations
S-waiting-on-author
Status: This is awaiting some action (such as code changes or more information) from the author.
Status: This is awaiting some action (such as code changes or more information) from the author.
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
Relevant to the compiler team, which will review and decide on the PR/issue.
Status: Open (in progress).
rust-lang/rust
number 144936
#144936
In rust-lang/rust;
·
rcvalle
opened
on Aug 5, 2025
Invalid CFI failure for and indirect call through a <code>Box<dyn Fn()></code>
A-control-flow-integrity
Area: Control Flow Integrity (CFI) security mitigation
Area: Control Flow Integrity (CFI) security mitigation
A-sanitizers
Area: Sanitizers for correctness and code quality
Area: Sanitizers for correctness and code quality
C-bug
Category: This is a bug.
Category: This is a bug.
PG-exploit-mitigations
Project group: Exploit mitigations
Project group: Exploit mitigations
Status: Open.
#144641
In rust-lang/rust;
·
1c3t3a
opened
on Jul 29, 2025
Limit impl_trait_header query to only trait impls
A-LLVM
Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.
Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.
perf-regression
Performance regression.
Performance regression.
PG-exploit-mitigations
Project group: Exploit mitigations
Project group: Exploit mitigations
S-waiting-on-review
Status: Awaiting review from the assignee but also interested parties.
Status: Awaiting review from the assignee but also interested parties.
T-clippy
Relevant to the Clippy team.
Relevant to the Clippy team.
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
Relevant to the compiler team, which will review and decide on the PR/issue.
T-rustdoc
Relevant to the rustdoc team, which will review and decide on the PR/issue.
Relevant to the rustdoc team, which will review and decide on the PR/issue.
T-rustdoc-frontend
Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.
Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.
Status: Open (in progress).
rust-lang/rust
number 144607
#144607
In rust-lang/rust;
·
camsteffen
opened
on Jul 28, 2025
Remove the <code>CoroutineWitness</code> type
PG-exploit-mitigations
Project group: Exploit mitigations
Project group: Exploit mitigations
S-waiting-on-author
Status: This is awaiting some action (such as code changes or more information) from the author.
Status: This is awaiting some action (such as code changes or more information) from the author.
T-clippy
Relevant to the Clippy team.
Relevant to the Clippy team.
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
Relevant to the compiler team, which will review and decide on the PR/issue.
T-rustdoc
Relevant to the rustdoc team, which will review and decide on the PR/issue.
Relevant to the rustdoc team, which will review and decide on the PR/issue.
WG-trait-system-refactor
The Rustc Trait System Refactor Initiative (-Znext-solver)
The Rustc Trait System Refactor Initiative (-Znext-solver)
Status: Open (in progress).
rust-lang/rust
number 144157
#144157
In rust-lang/rust;
·
compiler-errors
opened
on Jul 18, 2025
LLVM CFI integration being undocumented complicates further codegen dev
A-control-flow-integrity
Area: Control Flow Integrity (CFI) security mitigation
Area: Control Flow Integrity (CFI) security mitigation
PG-exploit-mitigations
Project group: Exploit mitigations
Project group: Exploit mitigations
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
Relevant to the compiler team, which will review and decide on the PR/issue.
Status: Open.
#143751
In rust-lang/rust;
·
workingjubilee
opened
on Jul 10, 2025
<code>tests/ui/sanitizer/dataflow.rs</code> fails to link
A-sanitizers
Area: Sanitizers for correctness and code quality
Area: Sanitizers for correctness and code quality
A-testsuite
Area: The testsuite used to check the correctness of rustc
Area: The testsuite used to check the correctness of rustc
C-bug
Category: This is a bug.
Category: This is a bug.
PG-exploit-mitigations
Project group: Exploit mitigations
Project group: Exploit mitigations
Status: Open.
#143727
In rust-lang/rust;
·
tmiasko
opened
on Jul 10, 2025
[experiment] first draft of init array syntax
PG-exploit-mitigations
Project group: Exploit mitigations
Project group: Exploit mitigations
S-waiting-on-author
Status: This is awaiting some action (such as code changes or more information) from the author.
Status: This is awaiting some action (such as code changes or more information) from the author.
T-clippy
Relevant to the Clippy team.
Relevant to the Clippy team.
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
Relevant to the compiler team, which will review and decide on the PR/issue.
T-libs
Relevant to the library team, which will review and decide on the PR/issue.
Relevant to the library team, which will review and decide on the PR/issue.
T-rustdoc
Relevant to the rustdoc team, which will review and decide on the PR/issue.
Relevant to the rustdoc team, which will review and decide on the PR/issue.
WG-trait-system-refactor
The Rustc Trait System Refactor Initiative (-Znext-solver)
The Rustc Trait System Refactor Initiative (-Znext-solver)
Status: Draft (not ready).
rust-lang/rust
number 143553
#143553
In rust-lang/rust;
·
dingxiangfei2009
opened
on Jul 7, 2025
You can’t perform that action at this time.