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Tracking issue for release notes of #139087: Fallback {float} to f32 when f32: From<{float}> and add impl From<f16> for f32

F-f16_and_f128`#![feature(f16)]`, `#![feature(f128)]``#![feature(f16)]`, `#![feature(f128)]`

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

relnotesMarks issues that should be documented in the release notes of the next release.Marks issues that should be documented in the release notes of the next release.

relnotes-tracking-issueMarks issues tracking what text to put in release notes.Marks issues tracking what text to put in release notes.

T-langRelevant to the language teamRelevant to the language team

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

T-typesRelevant to the types team, which will review and decide on the PR/issue.Relevant to the types team, which will review and decide on the PR/issue.

Status: Open.

#154771 In rust-lang/rust;

· rustbot opened on Apr 3, 2026