# [9.0.0-rc.4](https://github.com/redis/go-redis/compare/v9.0.0-rc.3...v9.0.0-rc.4) (2023-01-24) # [9.0.0-rc.3](https://github.com/redis/go-redis/compare/v9.0.0-rc.2...v9.0.0-rc.3) (2023-01-24) ### Bug Fixes * 386 platform test ([701b1d0](https://github.com/redis/go-redis/commit/701b1d0a8bc497c8dc55fb61bda05afde2dd073b)) * change serialize key "key" to "redis" ([913936b](https://github.com/redis/go-redis/commit/913936b4cd9ae131e4671d0960bf1f9e46e6b171)) * fix the withHook func ([0ed4a44](https://github.com/redis/go-redis/commit/0ed4a4420fddcbe897b3884ef637ece53ccc55b8)) * read cursor as uint64 ([b88bd93](https://github.com/redis/go-redis/commit/b88bd93662f55ff2d0b2353f5f79e7065464f982)) * **redisotel:** correct metrics.DialHook attrs ([#2331](https://github.com/redis/go-redis/issues/2331)) ([7c4b924](https://github.com/redis/go-redis/commit/7c4b92435024eef4429a30146fad28ec98085c5b)) * remove comment ([4ce9046](https://github.com/redis/go-redis/commit/4ce90461a5572395f0bffcf1e0eb5f17ae31ce11)) * remove mutex from pipeline ([6525bbb](https://github.com/redis/go-redis/commit/6525bbbaa157eaea40e363c462057a3ad29536a9)) * tags for structToMap "json" -> "key" ([07e15d2](https://github.com/redis/go-redis/commit/07e15d2876ccc88afcd0f344a3eed6a050ff1921)) * test code ([1fdcbf8](https://github.com/redis/go-redis/commit/1fdcbf86bbb390e4e689a35a391a4a4b3917216d)) ### Features * add ClientName option ([a872c35](https://github.com/redis/go-redis/commit/a872c35b1a9cbd19904010c105281ad15ab687ab)) * add SORT_RO command ([ca063fd](https://github.com/redis/go-redis/commit/ca063fd0adf0974504f4e9d7352e1b4d7b14cb61)) * add zintercard cmd ([bb65dcd](https://github.com/redis/go-redis/commit/bb65dcdf0903459ed341c87de34ad689632dceff)) * appendArgs adds to read the structure field and supplements the test ([0064199](https://github.com/redis/go-redis/commit/0064199323e408f0dafcd033460acb94a9ad9f4f)) * enable struct on HSet ([bf334e7](https://github.com/redis/go-redis/commit/bf334e773819574a898717f5a709e15cecaa43ff)) * hook mode is changed to FIFO ([97697f4](https://github.com/redis/go-redis/commit/97697f488fe5179542d07af72e031939fd854a99)) * **redisotel:** add code attributes ([3892986](https://github.com/redis/go-redis/commit/3892986f01959e1e71aee8710d9719400e0b1205)) * **scan:** add Scanner interface ([#2317](https://github.com/redis/go-redis/issues/2317)) ([a4336cb](https://github.com/redis/go-redis/commit/a4336cbd43a1e620cb8967bca27a678b9445bef8)) ## v9 UNRELEASED ### Added - Added support for [RESP3](https://github.com/antirez/RESP3/blob/master/spec.md) protocol. It was contributed by @monkey92t who has done the majority of work in this release. - Added `ContextTimeoutEnabled` option that controls whether the client respects context timeouts and deadlines. See [Redis Timeouts](https://redis.uptrace.dev/guide/go-redis-debugging.html#timeouts) for details. - Added `ParseClusterURL` to parse URLs into `ClusterOptions`, for example, `redis://user:password@localhost:6789?dial_timeout=3&read_timeout=6s&addr=localhost:6790&addr=localhost:6791`. - Added metrics instrumentation using `redisotel.IstrumentMetrics`. See [documentation](https://redis.uptrace.dev/guide/go-redis-monitoring.html) - Added `redis.HasErrorPrefix` to help working with errors. ### Changed - Removed asynchronous cancellation based on the context timeout. It was racy in v8 and is completely gone in v9. - Reworked hook interface and added `DialHook`. - Replaced `redisotel.NewTracingHook` with `redisotel.InstrumentTracing`. See [example](example/otel) and [documentation](https://redis.uptrace.dev/guide/go-redis-monitoring.html). - Replaced `*redis.Z` with `redis.Z` since it is small enough to be passed as value without making an allocation. - Renamed the option `MaxConnAge` to `ConnMaxLifetime`. - Renamed the option `IdleTimeout` to `ConnMaxIdleTime`. - Removed connection reaper in favor of `MaxIdleConns`. - Removed `WithContext` since `context.Context` can be passed directly as an arg. - Removed `Pipeline.Close` since there is no real need to explicitly manage pipeline resources and it can be safely reused via `sync.Pool` etc. `Pipeline.Discard` is still available if you want to reset commands for some reason. - Changed Pipelines to not be thread-safe any more. ### Fixed - Improved and fixed pipeline retries. - As usually, added support for more commands and fixed some bugs.