Prepare v0.9.1 release (#87)

Prepare the backward-compatible hubuum_client 0.9.1 patch release.

Bump the published crate and lockfile package version, move the accumulated Unreleased changes into the dated 0.9.1 changelog section, update README installation and crate compatibility documentation, and add the required compatibility-history record.

The declared target remains Hubuum server v0.0.9 with its 202-operation pinned OpenAPI contract and immutable image ghcr.io/hubuum/hubuum-server@sha256:1f12baf882b6d3df5b4b2dbdf26aad0793274e57f86a2c186b8e1e68632db5db.

All direct and transitive dependencies were refreshed immediately before release in #85. The MSRV remains Rust 1.88.

There are no breaking changes and no migration action is required. The 0.9.1 notes cover JSON-path validation, server-advertised pagination limits, atomic export downloads, property-level OpenAPI reconciliation, dependency updates, the h2 advisory fix, and release-workflow security hardening.

Author: terjekv

CHANGELOG.md

@@ -6,8 +6,13 @@ The format is based on Keep a Changelog, and this project aims to follow Semanti
 
 ## [Unreleased]
 
+## [0.9.1] - 2026-08-29
+
 ### Added
 
+- This release explicitly targets Hubuum server v0.0.9, with its 202-operation
+  OpenAPI contract and immutable multi-platform image
+  `sha256:1f12baf882b6d3df5b4b2dbdf26aad0793274e57f86a2c186b8e1e68632db5db`.
 - Add machine-checked property-level reconciliation between pinned OpenAPI
   schemas and 34 generated or handwritten Rust wire models, including explicit
   point/list projection exceptions and regressions for relation cardinalities,

COMPATIBILITY.md

@@ -13,6 +13,7 @@ coverage evolves.
 
 | Client version | Server target | Tested server image | Evidence |
 | --- | --- | --- | --- |
+| 0.9.1 | 0.0.9 | `ghcr.io/hubuum/hubuum-server@sha256:1f12baf882b6d3df5b4b2dbdf26aad0793274e57f86a2c186b8e1e68632db5db` | Declared target; JSON-path validation, advertised pagination limits, atomic export downloads, property-level OpenAPI model reconciliation, dependency and release-workflow security updates, with pinned Docker-backed library plus downstream-consumer integration coverage |
 | 0.9.0 | 0.0.9 | `ghcr.io/hubuum/hubuum-server@sha256:1f12baf882b6d3df5b4b2dbdf26aad0793274e57f86a2c186b8e1e68632db5db` | Declared target; revision and ETag concurrency, import v2, settings JSON Patch, revision-owned permission and membership responses, computed-field points, token lifecycle state and renewal, with pinned Docker-backed library plus downstream-consumer integration coverage |
 | 0.8.0 | 0.0.8 | `ghcr.io/hubuum/hubuum-server@sha256:850bfd95a2802485f93c1700fbff5a33465cbc7855cbc94962982c1074fd96f6` | Declared target; property-complete v0.0.8 cardinality, core-import timestamp, and export-timing models with pinned Docker-backed library plus downstream-consumer integration coverage |
 | 0.7.3 | 0.0.8 | `ghcr.io/hubuum/hubuum-server@sha256:850bfd95a2802485f93c1700fbff5a33465cbc7855cbc94962982c1074fd96f6` | Declared target; pinned OpenAPI and complete Docker-backed library plus downstream-consumer integration suites |

Cargo.lock

@@ -4,7 +4,7 @@ resolver = "3"
 
 [package]
 name = "hubuum_client"
-version = "0.9.0"
+version = "0.9.1"
 edition = "2024"
 rust-version = "1.88"
 license = "MIT"

Cargo.toml

@@ -2,7 +2,7 @@
 
 A Rust client library for the Hubuum API. It provides synchronous and asynchronous clients, type-state authentication, typed resource IDs, fluent query builders, and task helpers for long-running operations such as imports and exports.
 
-`hubuum_client` 0.9.0 targets Hubuum server v0.0.9. The exact tested image and
+`hubuum_client` 0.9.1 targets Hubuum server v0.0.9. The exact tested image and
 the history for earlier client releases are recorded in
 [COMPATIBILITY.md](COMPATIBILITY.md).
 
@@ -36,14 +36,14 @@ Add the dependency to your project's `Cargo.toml`:
 
 ```toml
 [dependencies]
-hubuum_client = "0.9.0"
+hubuum_client = "0.9.1"
 ```
 
 Async support is enabled by default. Blocking applications can opt into only the synchronous surface:
 
 ```toml
 [dependencies]
-hubuum_client = { version = "0.9.0", default-features = false, features = ["blocking"] }
+hubuum_client = { version = "0.9.1", default-features = false, features = ["blocking"] }
 ```
 
 If you need unreleased changes, point Cargo at the Git repository:

README.md

@@ -6,7 +6,7 @@
 
 //! A hubuum API client library.
 //!
-//! Version 0.9.0 targets Hubuum server v0.0.9. See the repository's
+//! Version 0.9.1 targets Hubuum server v0.0.9. See the repository's
 //! `COMPATIBILITY.md` for the tested image digest and compatibility history.
 //!
 //! async: