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ACP: add <code>str::version_cmp</code>

api-change-proposalA proposal to add or alter unstable APIs in the standard librariesA proposal to add or alter unstable APIs in the standard libraries

T-libs-api

Status: Open.

#740 In rust-lang/libs-team;

· lolbinarycat opened on Feb 2, 2026

ACP: Add <code>BTreeMap::append_with</code>

api-change-proposalA proposal to add or alter unstable APIs in the standard librariesA proposal to add or alter unstable APIs in the standard libraries

T-libs-api

Status: Open.

#739 In rust-lang/libs-team;

· asder8215 opened on Feb 2, 2026

ACP: Add carryless product for unsigned integers

api-change-proposalA proposal to add or alter unstable APIs in the standard librariesA proposal to add or alter unstable APIs in the standard libraries

T-libs-api

Status: Open.

#738 In rust-lang/libs-team;

· okaneco opened on Jan 31, 2026

ACP: add <code>str::from_boxed_utf8</code> for API consistency

Status: Open.

#737 In rust-lang/libs-team;

· eliminmax opened on Jan 30, 2026

ACP: Document how escape_debug escapes characters.

api-change-proposalA proposal to add or alter unstable APIs in the standard librariesA proposal to add or alter unstable APIs in the standard libraries

T-libs-api

Status: Open.

#735 In rust-lang/libs-team;

· tmccombs opened on Jan 26, 2026

Add next_chunk_back to DoubleEndedIterator

ACP-acceptedAPI Change Proposal is accepted (seconded with no objections)API Change Proposal is accepted (seconded with no objections)

api-change-proposalA proposal to add or alter unstable APIs in the standard librariesA proposal to add or alter unstable APIs in the standard libraries

T-libs-api

Status: Open.

#734 In rust-lang/libs-team;

· vinDelphini opened on Jan 26, 2026

allow specifying whether <code>Instant</code> should be suspend-aware

api-change-proposalA proposal to add or alter unstable APIs in the standard librariesA proposal to add or alter unstable APIs in the standard libraries

T-libs-api

Status: Open.

#733 In rust-lang/libs-team;

· joboet opened on Jan 25, 2026

ACP: <code>impl TryFrom&lt;{OsString, &amp;OsStr}&gt; for String</code>

api-change-proposalA proposal to add or alter unstable APIs in the standard librariesA proposal to add or alter unstable APIs in the standard libraries

T-libs-api

Status: Open.

#732 In rust-lang/libs-team;

· Kixunil opened on Jan 25, 2026

Adding fallible shrinking to vec using <code>try_shrink_to</code> and <code>try_shrink_to_fit</code>

api-change-proposalA proposal to add or alter unstable APIs in the standard librariesA proposal to add or alter unstable APIs in the standard libraries

T-libs-api

Status: Open.

#728 In rust-lang/libs-team;

· BitSyndicate1 opened on Jan 15, 2026

ACP: Add float constants for min/max limits of consecutive integers that convert to unique floats

api-change-proposalA proposal to add or alter unstable APIs in the standard librariesA proposal to add or alter unstable APIs in the standard libraries

T-libs-api

Status: Open.

#713 In rust-lang/libs-team;

· okaneco opened on Dec 19, 2025

Add <code>mem::needs_clone</code>

api-change-proposalA proposal to add or alter unstable APIs in the standard librariesA proposal to add or alter unstable APIs in the standard libraries

T-libs-api

Status: Open.

#711 In rust-lang/libs-team;

· joboet opened on Dec 14, 2025

<code>BinaryHeap::from_raw_vec</code>

api-change-proposalA proposal to add or alter unstable APIs in the standard librariesA proposal to add or alter unstable APIs in the standard libraries

T-libs-api

Status: Open.

#710 In rust-lang/libs-team;

· Dan54 opened on Dec 10, 2025