0.4.0 -- More Stability

Breaking

• switch from time to chrono (#176, #196)
• make errors non-exhaustive (#159)

Features

• topic deletion (#191)
• respect throttling (#184)
• allow setting a custom client ID (#180)
• pub ProducerClient for instrumentation hook (#162)
• add some getters to PartitionClient (#154)

Improvements

• log metadata mode in get_leader(#188)
• log reason about WHY we invalidate caches (#185)
• remove interior mutable from Messenger::version_ranges (#183)
• async flushing & buffering + lock contention (#173)
• pre-warm cache broker connections (#166)
• support pre-warming PartitionClient (#165)
• metadata cache for leader discovery (#163)
• extend ServerError with helpful data (#160)
• speed up IO (#156)

Bug Fixes

• (potential) broker cache invalidation race (#187)
• (potential) metadata cache invalidation race (#186)
• Fix typo in error message (#158)
• use compact arrays where needed (#155)

Dependency Updates

• dotenv -> dotenvy (#161)
• rustls to 0.21 (#200)
• zstd to 0.12 (#195)
• criterion (dev dependency) to 0.4 (#177, #204)
• j4rs (dev dependency) to 0.15 (#193, #197)
• rdkafka (dev dependency) to 0.31 (#189, #202, #203)
• CI rust toolchain to 1.65 (#194)