sync: update from the development repository

Content snapshot from the private development repository. The two histories are
independent by design; this commit carries the file contents, not the upstream
commits.

Author: eauesque

CHANGELOG.en.md

@@ -7,6 +7,27 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ---
 
+## [Unreleased]
+
+### Changed
+
+- **Measured the MSRV as `1.88` and declared `rust-version` in
+  `[workspace.package]`**, with every crate inheriting it via
+  `rust-version.workspace = true`. The READMEs previously said only "built and
+  tested with 1.96.0, MSRV undetermined" and the crates shipped no
+  `rust-version` at all, so a consumer could not tell whether their toolchain
+  would work without trying it.
+  - The number is measured, not assumed: the workspace builds on 1.88.0 and
+    cargo refuses 1.85.0.
+  - **The floor comes from dependencies, not from this code**: cargo reports
+    that `ort`/`ort-sys` 2.0.0-rc.12 require `rustc 1.88`. It moves when they
+    do, so re-measure before lowering it.
+  - Verified the declaration is live by injection: raising it to `1.99`
+    temporarily makes cargo refuse and name *our* packages
+    (`yu-hailo-auth@0.3.1 requires rustc 1.99`) rather than a dependency.
+    Without that check, a failure of key inheritance would have left the MSRV
+    a promise with nothing enforcing it.
+
 ## [0.3.1] - 2026-08-30
 
 ### Fixed

CHANGELOG.md

@@ -7,6 +7,23 @@
 
 ---
 
+## [Unreleased]
+
+### Changed
+
+- **MSRV を `1.88` と実測し、`[workspace.package]` に `rust-version` を宣言した。**
+  各クレートは `rust-version.workspace = true` で継承する。従来は「1.96.0 で
+  確認済み、MSRV 未確定」と記すのみで `rust-version` を持たなかったため、
+  利用者は自分の toolchain で動くかを試すまで判らなかった。
+  - 1.88.0 でビルド成功、1.85.0 で失敗することを実測して決めた。
+  - **下限を決めているのは本リポジトリのコードではなく依存**である。cargo は
+    `ort`/`ort-sys` 2.0.0-rc.12 が `rustc 1.88` を要求すると報告する。依存を
+    上下させればこの値も動くため、下げる際は旧 toolchain で実測すること。
+  - 宣言が有効であることは注入で確かめた。一時的に `1.99` へ上げると、cargo は
+    依存ではなく**当リポジトリのパッケージ名を挙げて**拒否する
+    (`yu-hailo-auth@0.3.1 requires rustc 1.99`)。継承が効かなければこの検査は
+    通ってしまい、MSRV は誰も強制しない約束になっていた。
+
 ## [0.3.1] - 2026-08-30
 
 ### Fixed

Cargo.toml

@@ -5,6 +5,13 @@ resolver = "2"
 [workspace.package]
 version    = "0.3.1"
 edition    = "2021"
+# Measured 2026-09-03, not guessed: the workspace builds on 1.88.0 and cargo
+# refuses 1.85.0. The floor comes from dependencies rather than from this
+# code -- `ort`/`ort-sys` 2.0.0-rc.12 declare `rust-version = 1.88` -- so it
+# moves when they do. Re-measure with `cargo build --workspace` under an older
+# toolchain before lowering this; a number nobody verified is worse than none,
+# because it reads as a promise.
+rust-version = "1.88"
 license    = "MIT"
 repository = "https://github.com/eauesque/yu-hailo-infer"
 authors    = ["eauesque"]

README.en.md

@@ -27,7 +27,7 @@ This is the service itself, not a `-sys` binding crate. It targets the Hailo-10H
 
 ## Dependencies
 
-- Rust: built and tested with 1.96.0. No MSRV is declared — older toolchains have not been verified, so the crates deliberately omit `rust-version`.
+- Rust: **1.88** or newer. `[workspace.package]` declares `rust-version = "1.88"` and every crate inherits it. The number was measured, not assumed (2026-09-03): the workspace builds on 1.88.0 and cargo refuses 1.85.0. The floor comes from dependencies rather than from this code — cargo reports that `ort`/`ort-sys` 2.0.0-rc.12 require `rustc 1.88` — so it moves when they do. Re-measure with `cargo build --workspace` under an older toolchain before lowering it.
 - HailoRT SDK (version to be documented) — requires `hailort` shared library and headers
 - `ort` (ONNX Runtime bindings) — used for CLIP text encoder and WD-Tagger inference
 - `tokenizers` (Apache-2.0) — used for BPE tokenization of CLIP/LLM

README.md

@@ -27,7 +27,7 @@ Hailo-10H向けRustネイティブ推論マイクロサービス。HTTP経由で
 
 ## 依存
 
-- Rust: 1.96.0 でビルド・テストを確認済み。最低対応バージョン(MSRV)は未確定であり、旧toolchainでの検証を行っていないため `rust-version` は宣言していない
+- Rust: **1.88** 以上。`[workspace.package]` に `rust-version = "1.88"` を宣言しており、各クレートが継承する。1.88.0 でのビルド成功と 1.85.0 での失敗を実測して決めた値である(2026-09-03)。下限を決めているのは本リポジトリのコードではなく依存で、cargo は `ort`/`ort-sys` 2.0.0-rc.12 が `rustc 1.88` を要求すると報告する。依存を上下させればこの値も動くため、下げる際は必ず旧 toolchain で `cargo build --workspace` を実測すること
 - HailoRT SDK(バージョン要記載) — `hailort`共有ライブラリ・ヘッダが必要
 - `ort`(ONNX Runtime バインディング) — CLIPテキストエンコーダ・WD-Tagger推論に使用
 - `tokenizers`(Apache-2.0) — CLIP/LLMのBPEトークナイズに使用

yu-hailo-auth/Cargo.toml

@@ -5,6 +5,7 @@ keywords    = ["auth", "bearer", "token", "hailo"]
 categories  = ["authentication"]
 version.workspace    = true
 edition.workspace    = true
+rust-version.workspace = true
 license.workspace    = true
 repository.workspace = true
 authors.workspace    = true

yu-hailo-infer-core/Cargo.toml

@@ -5,6 +5,7 @@ keywords    = ["onnx", "inference", "clip", "yolo", "hailo"]
 categories  = ["computer-vision", "science"]
 version.workspace    = true
 edition.workspace    = true
+rust-version.workspace = true
 license.workspace    = true
 repository.workspace = true
 authors.workspace    = true

yu-hailo-infer/Cargo.toml

@@ -6,6 +6,7 @@ categories  = ["computer-vision", "web-programming::http-server"]
 # No `readme`: the READMEs live at the workspace root, outside this package.
 version.workspace    = true
 edition.workspace    = true
+rust-version.workspace = true
 license.workspace    = true
 repository.workspace = true
 authors.workspace    = true