Redis 8.8: New array data structure, rate limiter, performance improvements
Redis 8.8 has been released, introducing a new array data structure and various performance improvements. The update includes features like a window counter rate limiter and message NACKing for Redis Streams. Additionally, users can now control JSON numeric array storage and utilize multiple aggregators in time series queries.
- ▪Redis 8.8 introduces a new general-purpose data structure called array, which allows for fast access to indexed string values.
- ▪The update enhances performance with significant throughput improvements across various data types, including up to 83% for Streams and 68% for Strings.
- ▪New features include subkey notifications for hash fields and a COUNT aggregator for sorted set operations, expanding use cases in ranking and analytics.
Hacker News (Newest) files mainly under programming. We currently carry 5,306 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
inspect →
Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | Redis |
| Canonical URL | https://redis.io/blog/announcing-redis-8-8/ |
| Publication time | Wed, 03 Jun 2026 10:05:11 +0000 |
| Retrieval time | 2026-06-03T10:12:01.667Z |
| Last seen | 2026-06-03T10:12:09.908Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | 1Z-Ui9ZyW_BQ |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Resource CenterEvents & webinarsBlogVideosGlossaryResourcesArchitecture DiagramsDemo CenterResource CenterEvents & webinarsBlogVideosGlossaryResourcesArchitecture DiagramsDemo CenterBack to blogBlogAnnouncing Redis 8.8: New array data structure, rate limiter, performance improvements, & moreJune 02, 202614 minute readLior KoganRedis 8.8 in Redis Open Source is now available, bringing performance improvements alongside a set of powerful new features. Highlights include array - a new general-purpose data structure, a window counter rate limiter, streams message NACKing, subkey notifications for hash fields, explicit control over JSON numeric array storage, multiple aggregators in a single time series query, and a new COUNT aggregator for sorted sets union and intersection.Summary of…
Excerpt limited to ~120 words for fair-use compliance. The full article is at Redis.
Discussion
0 commentsMore from Redis
