Add what's new info

Author: dwdougherty

content/develop/whats-new/8-0-rc-1.md

@@ -0,0 +1,79 @@
+---
+title: Redis 8.0-RC1
+alwaysopen: false
+categories:
+- docs
+- operate
+- rs
+- rc
+description: What's new in Redis 8.0-RC1
+linkTitle: What's new in Redis 8.0-RC1
+weight: 5
+---
+
+## Highlights
+
+- **Integrated modules** now part of core:  
+  - JSON
+  - Probabilistic Time Series: Bloom, Cuckoo, Count-min sketch, Top-K, and t-digest  
+  - Time Series
+  - [Vector Set (preview)]({{< relref "/develop/data-types/vector-sets/" >}})  
+  - [Redis Query Engine]({{< relref "/develop/interact/#search-and-query" >}}) with horizontal & vertical scaling  
+  - All components available in Redis binary distributions  
+  - New config file: `redis-full.conf` for full component loading
+
+## New Commands
+
+- **Hash with expiration support**:  
+  - `HGETDEL` – get and delete hash field  
+  - `HGETEX`, `HSETEX` – get/set hash fields with expiration  
+- **Field TTL & expiration (7.4+)**:  
+  - `HEXPIRE`, `HPEXPIRE`, `HEXPIREAT`, `HPEXPIREAT`  
+  - `HPERSIST`, `HEXPIRETIME`, `HPEXPIRETIME`, `HTTL`, `HPTTL`  
+- **Other command additions**:  
+  - `XREAD +` – read latest stream entry  
+  - `HSCAN NOVALUES` – scan hash field names only  
+  - `SORT` in cluster mode with `BY` and `GET`  
+  - `CLIENT KILL MAXAGE`  
+  - Lua: `os.clock()` now available  
+  - `SPUBLISH` in `MULTI/EXEC` transactions on replicas  
+  - [Vector set command group (preview)] ({{< relref "/commands/?group=vector_set" >}})
+
+## Internal Architecture
+
+- **I/O threading overhaul**: read+write threading for higher throughput  
+- **Replication**: improved mechanism with AOF offset support  
+- **Over 30 performance optimizations**:  
+  - Optimized: `GET`, `EXISTS`, `LRANGE`, `HSET`, `XREAD`, `SCAN`, `ZADD`, `ZUNION`, `PFCOUNT`, `HSCAN`, and more  
+  - Improved latency, memory, and CPU utilization
+
+## Security
+
+- CVE-2024-46981: Lua RCE  
+- CVE-2024-51741: ACL DoS  
+- CVE-2024-31449, 31227, 31228: DoS in Lua/ACLs
+
+## Packaging
+
+- [Docker](https://hub.docker.com/_/redis)
+- Snap, Brew, APT, and RPM packages are available
+
+## Observability
+
+- New `INFO` sections:  
+  - `KEYSIZES`, `Threads`  
+  - Hash expiration stats  
+  - Client buffer disconnection counters  
+  - Dictionary memory rehashing  
+  - Script eviction stats
+
+## Upgrades & Support
+
+- Supports upgrade from:  
+  - Redis 7.x with or without modules  
+  - Redis Stack 7.2 and 7.4  
+- Supported OS:  
+  - Ubuntu 20.04 / 22.04 / 24.04  
+  - Debian 11 / 12  
+  - macOS 13–15  
+  - Rocky/Alma Linux 8.10, 9.5

content/develop/whats-new/redis-feature-sets.md

@@ -17,6 +17,7 @@ To use a new feature introduced in a later feature set, you must upgrade the cor
 
 | Redis feature set | What's new |
 |-------------------|------------|
+| **Feature set version:** 8.0-RC1| See [here]({{< relref "/develop/whats-new/8-0-rc-1" >}})|
 | **Feature set version:** 7.4<br /><br />**Component versions:**<br />[Redis 7.4]({{<relref "/operate/oss_and_stack/stack-with-enterprise/release-notes/redisce/redisce-7.4-release-notes.md">}})<br />[Search 2.10]({{< relref "/operate/oss_and_stack/stack-with-enterprise/release-notes/redisearch/redisearch-2.10-release-notes.md" >}})<br />[JSON 2.8]({{<relref "operate/oss_and_stack/stack-with-enterprise/release-notes/redisjson/redisjson-2.8-release-notes.md">}})<br />[Time series 1.12]({{<relref "/operate/oss_and_stack/stack-with-enterprise/release-notes/redistimeseries/redistimeseries-1.12-release-notes.md">}})<br />[Bloom 2.8]({{<relref "/operate/oss_and_stack/stack-with-enterprise/release-notes/redisbloom/redisbloom-2.8-release-notes.md">}}) | **Hash**: <br>- [Expiration of individual hash fields]({{<relref "/develop/data-types/hashes#field-expiration">}}). <br> **Streams**: <br>- To start reading from the last stream message, use [`XREAD`]({{<relref "/commands/xread">}}) with the new ID value `+`.<br> **Time series**: <br>Insertion-filter for close samples. <br> **JSON**: <br>- A fix to not duplicate `AOF` commands multiple times in [`JSON.MSET`]({{< relref "commands/json.mset/" >}}). <br> **Probabilistic**: <br>- Returns an error if [`CMS.MERGE`]({{< relref "commands/cms.merge/" >}}) results in an overflow or underflow. <br> **Redis Query Engine**: <br>- New `BFLOAT16` and `FLOAT16` vector data types, reducing memory consumed by vectors while preserving accuracy. <br>- Support for indexing empty and missing values and enhanced developer experience for queries with exact matching capabilities. <br>- You can match `TAG` fields without needing to escape special characters. <br>- Expanded geospatial search with new `INTERSECT` and `DISJOINT` operators, improved reporting of the memory consumed by the index, and exposed full-text scoring in aggregation pipelines. |
 | **Feature set version:** 7.2<br /><br />**Component versions:**<br />[Redis 7.2](https://raw.githubusercontent.com/redis/redis/7.2/00-RELEASENOTES)<br />[Search 2.8]({{< relref "/operate/oss_and_stack/stack-with-enterprise/release-notes/redisearch/redisearch-2.8-release-notes.md" >}})<br />[JSON 2.6]({{<relref "operate/oss_and_stack/stack-with-enterprise/release-notes/redisjson/redisjson-2.6-release-notes.md">}})<br />[Time series 1.10]({{<relref "/operate/oss_and_stack/stack-with-enterprise/release-notes/redistimeseries/redistimeseries-1.10-release-notes.md">}})<br />[Bloom 2.6]({{<relref "/operate/oss_and_stack/stack-with-enterprise/release-notes/redisbloom/redisbloom-2.6-release-notes.md">}})<br />[Gears 2.0](https://github.com/RedisGears/RedisGears/releases) | - Performance and resource utilization improvements, including significant memory and speed optimizations for lists, sets, and sorted sets.<br />**JSON**:<br />- New JSON commands: [`JSON.MERGE`]({{< relref "commands/json.merge/" >}}) and [`JSON.MSET`]({{< relref "commands/json.mset/" >}}).<br />**Redis Query Engine:**<br />- [Geo polygon search]({{< relref "commands/ft.search/#examples" >}}).<br>**Compatibility changes**:<br>- Redis 7.2 uses a new format (version 11) for RDB files, which is incompatible with older versions.<br />- Redis feature set 7.2 does not include [graph capabilities](https://redis.io/blog/redisgraph-eol/). |
 | **Feature set version:** 6.2<br /><br />**Component versions:**<br />[Redis 6.2](https://raw.githubusercontent.com/redis/redis/6.2/00-RELEASENOTES)<br />[Search 2.6]({{< relref "/operate/oss_and_stack/stack-with-enterprise/release-notes/redisearch/redisearch-2.6-release-notes.md" >}})<br />[JSON 2.4]({{<relref "operate/oss_and_stack/stack-with-enterprise/release-notes/redisjson/redisjson-2.4-release-notes.md">}})<br />[Time series 1.8]({{<relref "/operate/oss_and_stack/stack-with-enterprise/release-notes/redistimeseries/redistimeseries-1.8-release-notes.md">}})<br />[Bloom 2.4]({{<relref "/operate/oss_and_stack/stack-with-enterprise/release-notes/redisbloom/redisbloom-2.4-release-notes.md">}})<br />[Graph 2.10]({{<relref "/operate/oss_and_stack/stack-with-enterprise/release-notes/redisgraph/redisgraph-2.10-release-notes.md">}}) | **Time series**:<br />- Time series gap filling.<br />**JSON**:<br />- Improved JSON path parser.<br />**Probabilistic:**<br />- New probabilistic data structure t-digest.<br />**Redis Query Engine:**<br />- Wildcard queries for `TEXT` and `TAG`.<br />- Suffix search.<br />- Multi-value indexing and queries.<br />**Graph**:<br />- New pathfinding algorithms for graphs. |