{ "schema_version": 2, "id": "operate/oss_and_stack/stack-with-enterprise/release-notes/redisbloom/redisbloom-2.2-release-notes", "title": "RedisBloom 2.2 release notes", "url": "https://redis.io/docs/latest/operate/oss_and_stack/stack-with-enterprise/release-notes/redisbloom/redisbloom-2.2-release-notes/", "summary": "BF.INFO returns bloom filter details. CF.INFO returns cuckoo filter details. Scalable bloom and cuckoo filters. Configurable bucket size for cuckoo filters. CMS.INCRBY returns count.", "tags": [ "docs", "operate", "stack" ], "last_updated": "2026-09-21T16:36:33+01:00", "page_type": "content", "content_hash": "2384ba4a6ddf99b54b0a11cf21884fb46c455438ced99d0ee7475c6f63192932", "sections": [ { "id": "requirements", "title": "Requirements", "role": "overview", "text": "RedisBloom v2.2.18 requires:\n\n- Minimum Redis compatibility version (database): 4.0.0\n- Minimum Redis Enterprise Software version (cluster): 5.0.0" }, { "id": "v2218-july-2022", "title": "v2.2.18 (July 2022)", "role": "content", "text": "This is a maintenance release for RedisBloom 2.2.\n\nUpdate urgency: `MODERATE`: Program an upgrade of the server, but it's not urgent.\n\nDetails:\n\n- Bug fixes:\n\n - [#481](https://github.com/RedisBloom/RedisBloom/issues/481) CF crashes on expansion 0\n - [#478](https://github.com/RedisBloom/RedisBloom/pull/478) [`BF.INFO`](https://redis.io/docs/latest/commands/bf.info) reports an inaccurate result about the memory footprint" }, { "id": "v2217-june-2022", "title": "v2.2.17 (June 2022)", "role": "content", "text": "This is a maintenance release for RedisBloom 2.2.\n\nUpdate urgency: `HIGH`: There is a critical bug that may affect a subset of users. Upgrade!\n\nDetails:\n\n- Bug fixes:\n\n - [#451](https://github.com/RedisBloom/RedisBloom/pull/451) [`TOPK.INCRBY`](https://redis.io/docs/latest/commands/topk.incrby): fix calculation when old fingerprint count is reduced to 0\n - [#462](https://github.com/RedisBloom/RedisBloom/pull/462) [`CF.RESERVE`](https://redis.io/docs/latest/commands/cf.reserve): fix potential crash on incorrect number of parameters\n - [#434](https://github.com/RedisBloom/RedisBloom/pull/434) [`CF.INSERT`](https://redis.io/docs/latest/commands/cf.insert): fix crash when capacity is negative\n - [#450](https://github.com/RedisBloom/RedisBloom/pull/450) [`TOPK.INCRBY`](https://redis.io/docs/latest/commands/topk.incrby): limit increment to 100,000 to prevent potential long freezes" }, { "id": "v2215-may-2022", "title": "v2.2.15 (May 2022)", "role": "content", "text": "This is a maintenance release for RedisBloom 2.2.\n\nUpdate urgency: None.\n\nDetails:\n\n- Enhancements:\n\n - Added support for RedisBloom for AArch64 Linux" }, { "id": "v2214-march-2022", "title": "v2.2.14 (March 2022)", "role": "content", "text": "This is a maintenance release for RedisBloom 2.2.\n\nUpdate urgency: `MODERATE`: Program an upgrade of the server, but it's not urgent.\n\nDetails:\n\n- Bug fixes:\n\n - [#419](https://github.com/RedisBloom/RedisBloom/pull/419) `CMS.INCRBY` now returns an error on overflow\n - [#412](https://github.com/RedisBloom/RedisBloom/pull/412) Fixed macOS build" }, { "id": "v2212-february-2022", "title": "v2.2.12 (February 2022)", "role": "content", "text": "This is a maintenance release for RedisBloom 2.2.\n\nUpdate urgency: `MODERATE`: Program an upgrade of the server, but it's not urgent.\n\nDetails:\n\n- Bug fixes:\n\n - [#392](https://github.com/RedisBloom/RedisBloom/pull/392) Fixed a potential crash on Bloom filter expansion when loading from [AOF](https://redis.io/docs/latest/operate/oss_and_stack/management/persistence)\n - [#404](https://github.com/RedisBloom/RedisBloom/pull/404) Fixed a potential crash on Cuckoo filter when calling `CF.LOADCHUNK` on a filter with `EXPANSION` greater than 1" }, { "id": "v229-november-2021", "title": "v2.2.9 (November 2021)", "role": "content", "text": "This is a maintenance release for RedisBloom 2.2.\n\nUpdate urgency: `MODERATE`: Program an upgrade of the server, but it's not urgent.\n\nDetails:\n\n- Bug fixes:\n\n - [#281](https://github.com/RedisBloom/RedisBloom/pull/281) Memory leak when loading TOPK keys from RDB.\n\n - [#303](https://github.com/RedisBloom/RedisBloom/pull/303) `CMS.INCRBY` for negative or non-number\n\n - [#354](https://github.com/RedisBloom/RedisBloom/pull/354) TOPK List Duplicate entries\n\n - [#369](https://github.com/RedisBloom/RedisBloom/pull/369) Free only latest filter on `CF.COMPACT`\n\n - [#371](https://github.com/RedisBloom/RedisBloom/pull/371) `CF.SCANDUMP` for cuckoo filter\n \n - [#374](https://github.com/RedisBloom/RedisBloom/pull/374) ReplicateVerbatim for `CF.LOADCHUNK` (similar to [#309](https://github.com/RedisBloom/RedisBloom/pull/309))\n\n- Improvements:\n\n - [#331](https://github.com/RedisBloom/RedisBloom/pull/331) Add `WITHCOUNT` flag to `TOPK.LIST`" }, { "id": "v226-august-2021", "title": "v2.2.6 (August 2021)", "role": "content", "text": "This is a maintenance release for version 1.0.\n\nUpdate urgency: `LOW` - No need to upgrade unless there are new features you want to use.\n\nDetails:\n- Enhancements:\n - #[333](https://github.com/redisbloom/redisbloom/issues/333) Support inter shards TLS capability" }, { "id": "v224-july-2020", "title": "v2.2.4 (July 2020)", "role": "content", "text": "Headlines:\n\n- This release improves overall stability and provides fixes for found issues.\n\nDetails:\n\n- Bug fixes:\n - #[215](https://github.com/redisbloom/redisbloom/issues/215) Count-Min-Sketch CMS.INCRBY command to reply with correct min result.\n - #[219](https://github.com/redisbloom/redisbloom/issues/219) Cuckoo Filter CF.DEBUG correct response formatting." }, { "id": "v223-july-2020", "title": "v2.2.3 (July 2020)", "role": "content", "text": "Headlines:\n\n- This release improves overall stability and provides fixes for found issues.\n\nDetails:\n\n- Bug fixes:\n - [#217](https://github.com/RedisBloom/RedisBloom/pull/217) Client hung on `BF.INSERT` with multiple new items when a non-scaling filter is full." }, { "id": "v222-march-2020", "title": "v2.2.2 (March 2020)", "role": "content", "text": "Headlines:\n\n- This release improves overall stability and provides fixes for issues found after the previous release.\n\nDetails:\n\n- Minor enhancements:\n - Bloom\n - #[180](https://github.com/redisbloom/redisbloom/issues/180) Removed the upper limit on Bloom Filter capacity." }, { "id": "v221-january-2020", "title": "v2.2.1 (January 2020)", "role": "content", "text": "Headlines:\n\n- This release improves overall stability and provides fixes for issues found after the previous release.\n\nDetails:\n\n- Minor Enhancements:\n - Bloom\n - #[179](https://github.com/RedisBloom/RedisBloom/issues/179) Allow storing filters with size over 4294967295 (UINT32_MAX). Now 64 bits.\n - #[177](https://github.com/RedisBloom/RedisBloom/issues/177) Prevent passing both `EXPANSION` *and* `NONSCALING` parameters to `BF.RESERVE`." }, { "id": "v220-december-2019", "title": "v2.2.0 (December 2019)", "role": "content", "text": "- Added functionality\n - Bloom\n - #[149](https://github.com/RedisBloom/RedisBloom/issues/149) `BF.INFO` returns details about a specific bloom filter\n - Scalable\n - #[153](https://github.com/RedisBloom/RedisBloom/issues/153) Ability to change the `EXPANSION` rate. This means each subsequent sub-filter will be `expansion` times larger as the previous one.\n - #[160](https://github.com/RedisBloom/RedisBloom/issues/160) Optimise the scaling up of filter according to the [Scalable Bloom Filter](https://core.ac.uk/download/pdf/55607643.pdf) paper\n - #[161](https://github.com/RedisBloom/RedisBloom/issues/161) Optional `NONSCALING` argument to disable scaling. (This saves space since less hash functions are used)\n - #[155](https://github.com/RedisBloom/RedisBloom/issues/155) Disabling rounding up functionality\n - Cuckoo\n - #[149](https://github.com/RedisBloom/RedisBloom/issues/149) `CF.INFO` returns details about a specific cuckoo filter\n - Scalable\n - #[138](https://github.com/RedisBloom/RedisBloom/issues/138) Configurable `EXPANSION`. When an additional filter is created, its size will be the size of the current filter multiplied by the `expansion`. Higher expansion rates will result in lower error rates.\n - #[142](https://github.com/RedisBloom/RedisBloom/issues/142) The maximum number of expansions limited to 32.\n - #[131](https://github.com/RedisBloom/RedisBloom/issues/131) Configurable `MAXITERATIONS`. Number of attempts to swap buckets before declaring filter as full and creating an additional filter.\n - #[135](https://github.com/RedisBloom/RedisBloom/issues/135) Configurable `BUCKETSIZE`. Number of items in each bucket. Higher bucket size value improves the fill rate but result in a higher error rate and slightly slower operation speed.\n - #[142](https://github.com/RedisBloom/RedisBloom/issues/142) use of 64bit hash function\n - #[136](https://github.com/RedisBloom/RedisBloom/issues/136) expose compaction of filters in the API\n - CMS\n - #[97](https://github.com/RedisBloom/RedisBloom/issues/97) `CMS.INCRBY` returns count instead of ‘OK’\n\n- Minor bug fixes\n - Bloom\n - #[154](https://github.com/RedisBloom/RedisBloom/issues/154) Check error rate is 1< (cannot be equal)\n - Cuckoo\n - #[134](https://github.com/RedisBloom/RedisBloom/issues/134) Added `CuckooInsert_MemAllocFailed` exception\n - #[130](https://github.com/RedisBloom/RedisBloom/issues/130) Number of deletes wasn’t saved to RDB\n - General\n - #[117](https://github.com/RedisBloom/RedisBloom/issues/117) Using `RMUtil_RegisterWriteDenyOOMCmd`\n - #[121](https://github.com/RedisBloom/RedisBloom/issues/121) Moved `ReplicaVerbatim` to end of functions" } ], "examples": [] }