Redis 7.2 RC1
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Oran Agra
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00-RELEASENOTES
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00-RELEASENOTES
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Hello! This file is just a placeholder, since this is the "unstable" branch
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of Redis, the place where all the development happens.
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Redis 7.2 release notes
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=======================
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There is no release notes for this branch, it gets forked into another branch
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every time there is a partial feature freeze in order to eventually create
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a new stable release.
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--------------------------------------------------------------------------------
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Upgrade urgency levels:
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Usually "unstable" is stable enough for you to use it in development environments
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however you should never use it in production environments. It is possible
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to download the latest stable release here:
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LOW: No need to upgrade unless there are new features you want to use.
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MODERATE: Program an upgrade of the server, but it's not urgent.
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HIGH: There is a critical bug that may affect a subset of users. Upgrade!
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CRITICAL: There is a critical bug affecting MOST USERS. Upgrade ASAP.
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SECURITY: There are security fixes in the release.
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--------------------------------------------------------------------------------
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https://download.redis.io/redis-stable.tar.gz
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================================================================================
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Redis 7.2 RC1 Released Wed Mar 22 12:00:00 IST 2023
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================================================================================
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More information is available at https://redis.io
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Upgrade urgency LOW: This is the first Release Candidate for Redis 7.2.
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Redis Release Candidate (RC) versions are early versions that are made available
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for early adopters in the community to test them. We do not consider
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them suitable for production environments.
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Introduction to the Redis 7.2 release
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=====================================
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Redis 7.2 includes optimizations, several new commands, some improvements,
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bug fixes, and several new module APIs.
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In particular, users should be aware of the following changes:
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1. Redis 7.2 uses a new format (version 11) for RDB files, which is incompatible
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with older versions.
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2. See section about breaking changes mentioned below.
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3. If you use modules, see the module API breaking changes section below.
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Here is a comprehensive list of changes in this release compared to 7.0.10.
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Each one includes the PR number that added it so that you can get more details
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at https://github.com/redis/redis/pull/<number>
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New Features
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============
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* Introduce WAITAOF command, to block the client until a specified number
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of Redises have synced all previous write commands to the AOF on disk,
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see https://redis.io/commands/waitaof/
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New user commands or command arguments
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--------------------------------------
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* WAITAOF blocks until writes have been synced to disk (#11713)
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* Add WITHSCORE option to ZRANK and ZREVRANK (#11235)
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New administrative and introspection commands and command arguments
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-------------------------------------------------------------------
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* CLIENT SETINFO lets client library report name and version Redis (#11758)
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* CLIENT NO-TOUCH for clients to run commands without affecting LRU/LFU of keys (#11483)
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Command replies that have been extended
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---------------------------------------
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* ACL LOG - Add entry id, timestamp created, and timestamp last updated time (#11477)
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* COMMAND DOCS - Repurpose arg names as the unique ID (#11051)
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* CLIENT LIST has `T` flag to indicate CLIENT NO-TOUCH (#11483)
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* CLIENT LIST show lib-name, lib-ver (#11758)
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Potentially Breaking / Behavior Changes
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=======================================
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* Client side tracking for scripts now tracks the keys that are read by the
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script instead of the keys that are declared by the caller of EVAL / FCALL (#11770)
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* Freeze time sampling during command execution and in scripts (#10300)
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* When a blocked command is being unblocked, checks like ACL, OOM, etc are
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re-evaluated (#11012)
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* Unify ACL failure error message text and error codes (#11160)
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* Blocked stream command that's released when key no longer exists carries a
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different error code (#11012)
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* Command stats are updated for blocked commands only when / if the command
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actually executes (#11012)
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* The way ACL users are stored internally no longer removes redundant command
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and category rules, which may alter the way those rules are displayed as part
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of `ACL SAVE`, `ACL GETUSER` and `ACL LIST` (#11224)
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* Client connections created for TLS-based replication use SNI if possible (#11458)
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* Stream consumers: Re-purpose seen-time, add active-time (#11099)
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* XREADGROUP and X[AUTO]CLAIM create the consumer regardless of whether it was
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able to perform some reading/claiming (#11099)
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* ACL default newly created user set sanitize-payload flag in ACL LIST/GETUSER #11279
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* Fix HELLO command not to affect the client state unless successful (#11659)
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* Normalize `NAN` in replies to a single nan type, like we do with `inf` (#11597)
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Deprecations
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============
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* Mark the QUIT command as deprecated (#11439)
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* Delete RDB loading code for pre-release RDB formats (#11058)
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Performance and resource utilization improvements
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=================================================
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* Significant memory optimization of small list type keys (#11303)
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* Significant memory optimization for small set type keys (#11290)
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* Significant memory optimization for large sets (#11595)
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* Significant speed optimization in ZRANGE replies WITHSCORES in case of integer scores (#11779)
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* Significant speed optimization in double replies, mainly sorted sets commands (#10587)
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* Optimize the performance of commands with multiple keys in cluster mode (#11044)
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* Incrementally reclaim OS page cache of RDB file (#11248)
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* Improve memory management of cluster bus links when there is a large number of pending messages (#11343)
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* Minor performance improvement for workloads that use commands without pipelining (#11220)
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Changes in CLI tools
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====================
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* redis-cli accepts commands in subscribed mode (#11873)
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Other General Improvements
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==========================
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* WAIT now no longer waits for the replication offset after your last command,
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but rather the replication offset after your last write (#11713)
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* Automatically propagate node deletion to other nodes in a cluster when
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`CLUSTER FORGET` is called, allowing nodes to be deleted with a single call
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in most cases (#10869)
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* Blocking commands that were disallowed in scripts now behave in scripts the
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same they did in MULTI (#11568)
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Platform / toolchain support related changes
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=================================================
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* 32-bit builds compiled without HAVE_MALLOC_SIZE (not jemalloc or glibc)
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will consume more memory (#11595)
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* Use jemalloc by default also on ARM (#11407)
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* Adds stack trace and register dump support in crash report for illumos/solaris (#11335)
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New configuration options
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=========================
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* locale-collate runtime config to control setlocale affecting Lua and SORT (#11059)
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* Add CONFIG SET and GET loglevel feature in Sentinel (#11214)
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INFO fields and introspection changes
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=====================================
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* Added 4 new info fields for authentication errors and commands denied access
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for keys, channels and commands (#11288)
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* INFO SERVER includes a list of listeners (#9320)
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Module API changes
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==================
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* Make it possible for module commands to be part of ACL categories (#11708)
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* Add K flag to RM_Call to allow running blocking commands and set a callback to get the response (#11568)
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* Add RM_AddPostNotificationJob to allow writes after keyspace notification hooks (#11199)
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* RedisModule_Event_Key to notify about keys being unlinked together with reason and value (#9406)
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* Add RM_BlockClient[Set|Get]PrivateData to associate a module data with the blocked client (#11568)
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* APIs to allow modules to participate / handle AUTH validation (#11659)
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* RM_GetContextFlags supports a new flag: REDISMODULE_CTX_FLAGS_SERVER_STARTUP (#9320)
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* Add REDISMODULE_OPTIONS_ALLOW_NESTED_KEYSPACE_NOTIFICATIONS and RedisModule_GetModuleOptionsAll (#11199)
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* RM_BlockClientOnKeysWithFlags allows module to request being unblocked when the key is deleted (#11310)
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* Introduce aux_save2 makes it possible to skip saving that field in the RDB and
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enable loading the file in the absence of the module (#11374)
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* Add a dry run flag to RM_Call to do validations before actual execution (#11158)
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* Add RM_Microseconds and RM_CachedMicroseconds (#11016)
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* Add RM_ACLAddLogEntryByUserName API to be used without a user object (#11659)
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* Make it possible to keep the RM_Call reply for longer than the context lifetime in case
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auto memory was not used (#11568)
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Potentially Breaking Changes in Module API
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------------------------------------------
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* RM_Call only enforces OOM on scripts if 'M' flag is set (#11425)
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* Block some specific characters in module command names (#11434)
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* Fix replication inconsistency on modules that uses keyspace notifications (#10969)
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* Prevent command, configs, data types registration after the onload handler (#11708)
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Bug Fixes
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=========
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* Introduce socket shutdown to properly disconnect a client while a fork is active (#11376)
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* CLIENT RESET clears the CLIENT NO-EVICT flag (#11483)
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* Reduce memory usage on strings loaded by a module from an RDB file (#11050)
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* Fix a bug where nodes in a cluster may not replicate or handle internal events for
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keys deleted when another node in the cluster claimed a slot (#11084)
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* Fix HINCRBYFLOAT not to create a key if the new value is invalid (#11149)
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* Make cluster config file saving atomic and fsync acl file saving (#10924)
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* WAIT command would not block if used in RM_Call (#11713)
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* Minor fixes to command metadata in COMMAND command (#11201, #10273)
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Thanks to all the users and developers who made this release possible.
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We'll follow up with more RC releases, until the code looks production ready
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and we don't get reports of serious issues for a while.
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A special thank you for the amount of work put into this release by:
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- Meir Shpilraien
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- Viktor Söderqvist
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- Zhu Binbin
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- Guy Benoish
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- Oran Agra
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- Ran Shidlansik
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- sundb
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- Zhenwei Pi
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- Karthik Subbarao
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- Huang Zhw
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- Ping Xie
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- Madelyn Olson
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- Brennan Cathcart
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- Zhu Tian
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- Slava Koyfman
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- Roshan Khatri
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- Shaya Potter
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- Moti Cohen
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- Arad Zilberstein
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- Wen Hui
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- Chen Tianjie
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- Basel Naamna
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- Mingyi Kang
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- Uri Yagelnik
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- Filipe Oliveira
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- Valentino Geron
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- Ozan Tezcan
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- Adi Pinsky
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- Li Changjun
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Happy hacking!
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@ -1,2 +1,2 @@
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#define REDIS_VERSION "255.255.255"
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#define REDIS_VERSION_NUM 0x00ffffff
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#define REDIS_VERSION "7.1.240"
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#define REDIS_VERSION_NUM 0x000701f0
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