Apache Teaclave TrustZone SDK (incubating) v0.5.0

This release introduces enhanced support for TA-to-TA invocation with a new design, exposes more low-level OP-TEE capabilities such as objectType and TEE_GetProperty, and adds a generic session pool abstraction to optee_teec. It also improves developer experience with a prebuilt Docker development image, expanded examples (including mnist-rs), and better CI infrastructure including arm64 builds. It includes key refactorings, bug fixes, and the ability to use optee-utee-sys as a standalone build dependency—paving the way for more flexible integration.

What's Changed

?? Features

• optee-utee: expose objectType from TEE_ObjectInfo (#201) by @x1a0b0
• Expose login field from raw::TEEC_OpenSession (#195) by @simonsso
• optee-utee: support TEE_GetProperty APIs (#190) by @DemesneGH
• Support adding optee-utee-sys as build dependency (#186) by @ivila
• New Design for TA-to-TA Invocation (#178) by @DemesneGH
• optee_teec: Refactor Context & Session to support Generic Session Pool (#175) by @ivila

?? Examples

• Refine license of example mnist-rs (#197) by @ivila
• Support adding optee-utee-sys as build dependency (#186) by @ivila
• New Design for TA-to-TA Invocation (#178) by @DemesneGH
• optee_teec: Refactor Context & Session to support Generic Session Pool (#175) by @ivila
• Examples: Add mnist-rs (#173) by @ivila

?? Refactoring

• crates: move secure_db to shared crates/ directory (#192) by @DemesneGH
• Remove unwrap in test case (#187) by @simonsso
• New Design for TA-to-TA Invocation (#178) by @DemesneGH
• optee_teec: Refactor Context & Session to support Generic Session Pool (#175) by @ivila
• optee_teec: extension: fix macro errors (#176) by @ivila

?? Build / CI

• ci: add workflow to draft release notes (#200) by @DemesneGH
• examples/std/ta: Add Cargo.lock to pin crate versions (#199) by @DemesneGH
• dev-env: prebuilt docker image for development and emulation (#193) by @DemesneGH
• ci: Add test qemu image builder (#183) by @ivila
• examples: downgrade url dependency of message_passing_interface-rs (#188) by @ivila
• Support adding optee-utee-sys as build dependency (#186) by @ivila
• ci: add arm64 platform (#184) by @ivila
• Fix ctest (#179) by @ivila
• ci: add build_runner_image.yml (#180) by @ivila

?? Dependencies

• Version bump for release 0.5.0 (#198) by @DemesneGH

?? Bug Fixes

• Fix ctest (#179) by @ivila
• optee_teec: extension: fix macro errors (#176) by @ivila

?? Documentation

• dev-env: prebuilt docker image for development and emulation (#193) by @DemesneGH

New Contributors

• @simonsso made their first contribution in #187

Full Changelog: v0.4.0...v0.5.0-rc.1