--- Title: RedisTimeSeries 1.4 release notes alwaysopen: false categories: - docs - operate - stack description: Added ability to backfill time series. linkTitle: v1.4 (September 2020) min-version-db: 5.0.0 min-version-rs: 6.0.12 weight: 98 --- ## Requirements RedisTimeSeries v1.4.14 requires: - Minimum Redis compatibility version (database): 5.0.0 - Minimum Redis Enterprise Software version (cluster): 6.0.12 ## v1.4.14 (February 2022) This is a maintenance release for RedisTimeSeries 1.4. Update urgency: `MODERATE`: Program an upgrade of the server, but it's not urgent. Bug fixes: - [#891](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/891), [#892](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/892) Fixed memory leak in parseCreateArgs when parsing error occurs (MOD-1958) ## v1.4.13 (November 2021) This is a maintenance release for RedisTimeSeries 1.4. Update urgency: `MODERATE`: Program an upgrade of the server, but it's not urgent. Bug fixes: - [#881](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/881) Replicate only successful insertion of `TS.MADD` ## v1.4.11 (November 2021) This is a maintenance release for RedisTimeSeries 1.4. Update urgency: `MODERATE`: Program an upgrade of the server, but it's not urgent. Bug fixes: - [#862](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/862) Index dictionary should be freed on removing the last element ## v1.4.10 (July 2021) This is a maintenance release for RedisTimeSeries 1.4. Update urgency: `HIGH`: There is a critical bug that may affect a subset of users. Upgrade! Bug fixes: - [#760](https://github.com/RedisTimeSeries/RedisTimeSeries/issues/760) Avoid closing the same key twice, causing server crash on [`RENAME`]({{< relref "/commands/rename" >}}) of other keys ## v1.4.9 (May 2021) This is a maintenance release for version 1.4. Update urgency: Medium Headlines: - This release improves overall stability and provides fixes for issues found after the previous release. Bug fixes: - #[#712](https://github.com/RedisTimeSeries/RedisTimeSeries/issues/712) Missing keytype check on TS.INCRBY/DECRBY causes shards to crash - #[#719](https://github.com/RedisTimeSeries/RedisTimeSeries/issues/719) Support for renaming time series keys ## v1.4.8 (March 2021) This is a maintenance release for version 1.4. Headlines: - This release improves overall stability and provides fixes for issues found after the previous release. Bug fixes: - [#612](https://github.com/RedisTimeSeries/RedisTimeSeries/issues/612) Crash on `MGET`/`MRANGE` - [#606](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/606) Memory leak when key loaded from RDB - [#624](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/624) Uninitialised memory access on log ## v1.4.7 (December 2020) This is a maintenance release for version 1.4. Headlines: - This release improves overall stability, and provides fixes for issues found after the previous release. Bug fixes: - [#581](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/581) Misaligned allocators usage might crash Redis. - [#588](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/588) `ON_DUPLICATE` min/max rules not working for negative value. ## v1.4.6 (November 2020) This is a maintenance release for version 1.4. Headlines: This release improves overall stability and provides fixes for issues found after the previous release. Minor enhancements: - [#565](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/565) duplicate policy: add `SUM` option: If a previous sample exists, add the new sample to it so that the updated value is equal to (previous + new). If no previous sample exists, set the updated value equal to the new value. (PR [#565](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/565) - [#559](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/559) Compressed chunk will be be the default global option - [#559](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/559) Added `chunkType` to `TS.INFO` Bug fixes: - [#528](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/528) Out of order insert might crash Redis if there's an update to an empty downsampled key - [#561](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/561) `TS.MRANGE` command might crash if there's an expired key that was deleted in the result set ## v1.4 GA (September 2020) This is the General Availability release for RedisTimeSeries 1.4. Highlights: **Ability to backfill time series!** You can now add samples to a time series where the time of the sample is older than the newest sample in the series. This enables: - Adding out of order of samples to time series. - Batch loading of historical samples into an existing series. - Updating existing samples (for example for compliance reasons). This has been the most requested feature for RedisTimeSeries. We look forward to your feedback so we can move to a general availability release soon. Details: - Added functionality: - [#254](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/254) TS.REVRANGE and TS.MREVRANGE commands allow for querying in descending order of Timestamps. - [#503](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/503) - RDB saves the whole chunk instead of individual samples giving a speed and space improvement when saving or loading an RDB file - [#502](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/502) - The ability to set, at creation time, the data section size of each chunk using flag `CHUNK_SIZE`. TS.INFO uses `chunkSize` instead of `maxSamplesPerChunk`. - [#437](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/437) Allow backfilling of samples and updating of existing samples - Works with [compressed](https://redislabs.com/blog/redistimeseries-version-1-2-is-here/) and uncompressed series. - This comes with a performance hit when a sample is written out-of-order. We will publish numbers once we are generally available, but are still considering optimisations. - [#521](https://github.com/RedisTimeSeries/RedisTimeSeries/pull/521) `DUPLICATE_POLICY` allows to configure on module, series and sample level how to handle duplicate samples. A duplicate sample is a sample for which the series holds already a sample on the same timestamp. Note that the default behaviour is equal to v1.2: `BLOCK` Notes: The version inside Redis will be 10405 or 1.4.5 in semantic versioning. Since the version of a module in Redis is numeric, we could not add an GA flag.