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Copy file name to clipboardExpand all lines: content/develop/whats-new/8-2.md
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@@ -23,6 +23,13 @@ This release delivers major improvements across multiple areas:
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Below is a detailed breakdown of these updates.
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## Security improvements
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Redis 8.2 includes important security fixes:
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-**CVE-2025-27151**: Fixed potential stack overflow and RCE vulnerability in redis-check-aof.
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-**CVE-2025-32023**: Fixed out-of-bounds write vulnerability in HyperLogLog commands.
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-**CVE-2025-48367**: Improved connection handling to retry accepting connections even when errors occur.
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## New features
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### Enhanced Redis Streams
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-[`XDELEX`]({{< relref "/commands/xdelex/" >}}): Delete entries from streams with advanced consumer group handling options.
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-[`XACKDEL`]({{< relref "/commands/xackdel/" >}}): Acknowledge and delete stream entries in a single atomic operation.
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These commands include `KEEPREF`, `DELREF`, and `ACKED` options that give you precise control over how consumer group references are handled during entry deletion. This simplifies common patterns where you need to clean up acknowledged entries while maintaining consumer group integrity.
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These commands include `KEEPREF`, `DELREF`, and `ACKED` options that give you precise control over how consumer group references are handled during entry deletion. This simplifies common patterns where you need to clean up acknowledged entries while working with multiple consumer groups.
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The [`XADD`]({{< relref "/commands/xadd/" >}}) and [`XTRIM`]({{< relref "/commands/xtrim/" >}}) commands have also been extended with these same options, providing consistent behavior across all stream management operations.
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The [`XADD`]({{< relref "/commands/xadd/" >}}) and [`XTRIM`]({{< relref "/commands/xtrim/" >}}) commands have also been extended with these same options, providing consistent behavior across all commands that remove stream entries.
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### Cluster monitoring improvements
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The new [`CLUSTER SLOT-STATS`]({{< relref "/commands/cluster-slot-stats/" >}}) command provides detailed per-slot usage metrics including:
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- Key count per slot
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- CPU time consumption
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- Network I/O statistics
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- Network ingress and egress
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This enhanced visibility helps you optimize cluster performance and identify hotspots in your data distribution.
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### Vector search enhancements
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Redis 8.2 introduces the SVS-VAMANA vector index type, which supports vector compression and is optimized for Intel machines. This new index type can significantly reduce memory usage while maintaining search performance for vector similarity operations.
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The `VSIM` command now supports the `IN` operator for filtering expressions, giving you more flexibility when performing vector similarity searches with complex filtering criteria.
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### Enhanced bitmap operations
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-**ANDOR**: Combine AND and OR operations in a single command.
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-**ONE**: Specialized operation for single-bit scenarios.
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These new operators enable more complex bitmap analytics and can simplify operations that previously required multiple commands.
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These new operators enable more complex bitmap workflows and can simplify operations that previously required multiple commands.
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### Improved keyspace notifications
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These metrics provide better visibility into replication health and help you identify patterns in connection stability.
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## Security improvements
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Redis 8.2 includes important security fixes:
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-**CVE-2025-27151**: Fixed potential stack overflow and RCE vulnerability in redis-check-aof.
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-**CVE-2025-32023**: Fixed out-of-bounds write vulnerability in HyperLogLog commands.
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-**CVE-2025-48367**: Improved connection handling to retry accepting connections even when errors occur.
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## Component versions
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Redis 8.2 continues the unified distribution approach introduced in Redis 8.0, delivering all functionality in a single Redis Open Source package without separate modules.
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