FIND-20260328-001 · 2026-03-28 · Innovation Veille
actix-web 4.13.0 — HTTP/2 throughput improvements, MSRV bumped to Rust 1.88
release
HIGH
actix-web 4.13.0 was released on February 18, 2026, bringing improved HTTP/2 upload throughput via increased default flow control window sizes, new URL parameter methods, and a bumped minimum supported Rust version (MSRV) to 1.88. The release also introduces an experimental-introspection feature for route and method reporting. ODS uses actix-web as the primary web framework for all Rust backend services.
Source
https://github.com/actix/actix-web/releases/tag/web-v4.13.0
ODS Impact
All ODS Rust services (OID, billing-engine, pdf-engine, docstore, workflow-engine, form-engine, securemail, doceditor) use actix-web. The MSRV bump to Rust 1.88 means the Rust toolchain must be at 1.88+ — verify the pinned version in each service's rust-toolchain.toml. HTTP/2 throughput gains are directly relevant to high-volume PDF and DocStore services.
Security Review
License: MIT OR Apache-2.0 | Maintenance: ACTIVE | Risk: LOW | Recommendation: SAFE_TO_USE
Tags
rust
actix-web
http2
framework
backend
release