Actix Web 4.15.0

Last reviewed Oct 12, 2026

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Prompt Details

Prompt Composition

2prompts
  1. Rust 1.98136 lines · 3.6K tokens
  2. Actix Web 4.15.082 lines · 4.7K tokens
Total218 lines · 8.3K tokens

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Prompt Preview

Apply the Rust 1.98 baseline first, including its toolchain patch requirement. Actix Web 4.15.0 requires Rust 1.88 or newer and uses the Actix RT 2 / Tokio 1 runtime family. Apply optional integration rules only when using the corresponding crate: actix-session 0.11.0, actix-identity 0.9.0, actix-web-httpauth 0.8.3, actix-cors 0.7.2, actix-multipart 0.8.0, actix-files 0.7.0, or actix-ws 0.4.0.

Dependency and protocol exposure

  • Treat Actix's latest-release-only security policy as a compatibility constraint when maintaining the application; do not assume an older release receives backports.
  • Inspect the resolved actix-http and optional actix-files versions separately; Actix Web 4.15.0 requires actix-http 3.13.3 or a compatible newer release, and any other copy another dependency pulls into the graph needs its own review. Have every proxy in front of Actix reject HTTP/1.1 requests that carry both Content-Length and Transfer-Encoding instead of forwarding the ambiguous framing.
  • Check every resolved h2 copy before exposing HTTP/2. On every h2 release through 0.4.15, including the whole 0.3 line, which predate the 0.4.16 empty-DATA-frame fix, keep the Actix backend HTTP/1-only behind a TLS/HTTP proxy that enforces empty-DATA-frame limits, and block direct backend access. Serve that backend with bind or listen, which speak only HTTP/1; bind_auto_h2c and listen_auto_h2c accept cleartext HTTP/2, and the bind_rustls*, bind_openssl and matching listen_* TLS methods always offer h2 through ALPN because Actix Web's TLS features enable http2. If