# May 2026

## Rust SDK 17.2.0

> **Breaking changes**
>
> * `get_folders()` no longer consumes the `SecretsManager` instance — the signature is now `&mut self`. If you added `.clone()` as a workaround, you can safely remove it.
> * `CustomPostFunction` is now thread-safe — the type alias is now `Arc<dyn Fn(...) + Send + Sync>`. Most call sites will compile without changes; if you're storing the type alias directly, wrap your function with `Arc::new(...)`.

**Bug Fixes**

* **KSM-886:** File and thumbnail downloads no longer fail inside async runtimes — resolved a "builder error" that occurred when downloads were called from within a tokio runtime.

**Security updates**

* **reqwest 0.12 → 0.13.3** (KSM-922): Resolves four `rustls-webpki` advisories; TLS backend migrated to `aws-lc-rs`, the required foundation for FIPS 140-3 support.
* **openssl 0.10.75 → 0.10.78:** Resolves CVE-2026-41676, CVE-2026-41677, CVE-2026-41678, CVE-2026-41681  (CVSS 9.1–9.8, Critical).&#x20;

**Links:**

* [Crates.io package](https://crates.io/crates/keeper-secrets-manager-core/17.2.0)
* [docs.rs](https://docs.rs/keeper-secrets-manager-core/17.2.0)


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