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fix(bindings): declare the real MSRV (rust-version 1.81 → 1.91) #211

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Merged
drewstone merged 1 commit into from
Jul 24, 2026
Merged

fix(bindings): declare the real MSRV (rust-version 1.81 → 1.91) #211

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20 changes: 20 additions & 0 deletions bindings/CHANGELOG.md
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Expand Up @@ -7,6 +7,26 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

## [Unreleased]

### Changed

- **MSRV raised to Rust 1.91** (`rust-version`, was `1.81`). The Dependabot
security sweep (#198) bumped `alloy` 1.1.2 → 1.8.3 — required to pull the
`lru` 0.16 fix (RUSTSEC) via `alloy-provider`, which moves its `lru` pin
`^0.13` → `^0.16` — and `alloy` 1.8.3 declares `rustc >= 1.91`. The declared
MSRV now matches what the locked dependency graph actually requires; the
previous `1.81` no longer built. CI builds on `stable`, which satisfies it.

### Build environment (consequences of the `alloy` 1.8.3 bump — noted, accepted)

- **cmake + a C toolchain are now build-time requirements.** `alloy` 1.8.3
pulls `reqwest` 0.13 → `rustls` 0.23.41, whose default crypto provider is
`aws-lc-rs` (`aws-lc-sys` compiles a C/C++ crypto library via `cmake`).
Minimal build images must install `cmake` and a C compiler.
- **TLS trust root moved to the OS-native store.** `reqwest` 0.13 replaced the
bundled `webpki-roots` Mozilla store with `rustls-platform-verifier`, so RPC
over HTTPS now trusts the host OS certificate store (Keychain / `/etc/ssl` /
Windows cert store) rather than a pinned root set.

## [0.18.0] - 2026-07-02

Event-sourced blueprint definitions and operator endpoints: `createBlueprint`
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2 changes: 1 addition & 1 deletion bindings/Cargo.toml
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Expand Up @@ -2,7 +2,7 @@
name = "tnt-core-bindings"
version = "0.19.0"
edition = "2021"
rust-version = "1.81"
rust-version = "1.91"
description = "Rust bindings for TNT Core Solidity contracts (Tangle staking protocol)"
license = "MIT OR Apache-2.0"
repository = "https://github.com/tangle-network/tnt-core"
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2 changes: 1 addition & 1 deletion fixtures/Cargo.toml
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Expand Up @@ -2,7 +2,7 @@
name = "tnt-core-fixtures"
version = "0.17.1"
edition = "2021"
rust-version = "1.81"
rust-version = "1.91"
description = "Local testnet fixture data for TNT Core"
license = "MIT OR Apache-2.0"
repository = "https://github.com/tangle-network/tnt-core"
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