1.5.0-RC2

• ⭐ Add non-spawning create_tcp_client_task_with_options(), create_tls_client_task_with_options(), and create_rtu_client_task() that return a ClientTask for the caller to spawn, enabling custom task instrumentation. See #180.
• 🔒 Update rustls-webpki to 0.103.13 to resolve RUSTSEC-2026-0098, RUSTSEC-2026-0099, and RUSTSEC-2026-0104. The two name-constraint advisories (0098, 0099) are theoretically reachable during TLS handshake but require certificate misissuance to exploit; the CRL panic (0104) is unreachable as Rodbus does not use CRLs.
• ⭐ TCP client performance optimizations: ~33% fewer heap allocations and ~3.4% fewer instructions per request, including an iterative MBAP parser and ExactSizeIterator impls for the response iterators. See #177.
• 🐛 Fix a ReadBuffer shift condition that, in a rare buffer-full edge case, caused a spurious disconnect (no data corruption). See #177.
• ⭐ Add configurable limit on consecutive client response timeouts. See #166.
• 🔧 Use aws-lc-rs crypto provider for TLS on most platforms. See #164.
• 🔧 Tunable connection logging to reduce verbosity during disrupted communication. See #163.
• ⭐ Add spawn_tcp_client_task_with_options() with extensible ClientOptions builder API. See #161.
• 🐛 Fix bad default upper limit in retry strategy. See #158.
• 🔧 PartialEq and Debug consistently applied to public API. See #157.
• ⭐ Support serde on configuration types with new serialization feature. See #156.
• 🔧 rodbus-client modernization with serial support and improved error handling. See #152.

1.5.0-RC1

• ⭐ Add configurable limit on consecutive client response timeouts. See #166.
• 🔧 Use aws-lc-rs crypto provider for TLS on most platforms. See #164.
• 🔧 Tunable connection logging to reduce verbosity during disrupted communication. See #163.
• ⭐ Add spawn_tcp_client_task_with_options() with extensible ClientOptions builder API. See #161.
• 🐛 Fix bad default upper limit in retry strategy. See #158.
• 🔧 PartialEq and Debug consistently applied to public API. See #157.
• ⭐ Support serde on configuration types with new serialization feature. See #156.
• 🔧 rodbus-client modernization with serial support and improved error handling. See #152.

1.4.0

• 🔧 Avoid task spawning in client FFI methods. See #136.
• 🔧 Requests in the client API now fail immediately while the client is connecting.

1.4.0-RC1

• 🔧 Avoid task spawning in client FFI methods. See #136.
• 🔧 Requests in the client API now fail immediately while the client is connecting.

1.4.0-M1

🔧 Avoid task spawning in client FFI methods. See #136.

1.3.1

• 🐛 Fix issue with master channels not properly exiting and thrashing CPU. See #120.

1.3.0

• 🔧 Update to rustls 0.21 which allows peer names with IP addresses in the SAN extension.
• 🔧 Move common TLS configuration to its own crate shared with our Modbus library.
• ⭐ PEM parser now supports extracting PKCS#1 private keys, i.e. PEM files with BEGIN RSA PRIVATE KEY.
• 📖 Documentation improvements in the bindings via oo-bindgen 0.8.3.

1.3.0-rc1

• 🔧 Update to rustls 0.21.0 which allows peer names with IP addresses in the SAN extension.
• 🔧 Move common TLS configuration to its own crate shared with our Modbus library.
• ⭐ PEM parser now supports extracting PKCS#1 private keys, i.e. PEM files with BEGIN RSA PRIVATE KEY.
• 📖 Documentation improvements in the bindings via oo-bindgen 0.8.3.

1.2.0

• ⭐ Add a mechanism to the bindings to shut down the Runtime with a timeout. See #110.

1.2.0-rc1

• ⭐ Add a mechanism to the bindings to shut down the Runtime with a timeout. See #110.