FTMahringer/Synapse
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  • v2.3.0 b0d84778e3

    v2.3.0 - Performance & Caching Stable

    FTMahringer released this 2026-05-10 21:31:00 +02:00 | 142 commits to main since this release

    RELEASE NOTES - v2.3.0

    Release Date: 2026-05-10
    Milestone: Performance & Caching

    Overview

    v2.3.0 finalizes the v2.2.x performance track with query optimization, Redis-backed caching, response compression, and connection pooling across database, cache, and provider HTTP integrations.

    Full v2.2.x Changelog

    v2.2.0 - Observability & Monitoring

    • Released observability milestone
    • Included: metrics infrastructure, distributed tracing, health checks, structured logging

    v2.2.1-dev - Query Optimization

    • Added pagination to high-volume API endpoints
    • Added composite performance indexes (V12__performance_query_indexes.sql)
    • Removed costly provider scan from message send path
    • Reduced bundle install lookup overhead using repository existence checks

    v2.2.2-dev - Redis Caching Layer

    • Enabled Spring Cache with Redis backend
    • Cached conversation history reads
    • Cached model provider config/default provider lookups
    • Cached user session-related lookups (id/username)
    • Cached plugin and store metadata with mutation-triggered eviction

    v2.2.3-dev - Response Compression

    • Enabled HTTP response compression (gzip)
    • Added response size threshold and MIME filter
    • Optimized DTO serialization footprint (NON_NULL)
    • Added Jackson Blackbird module for serialization performance

    v2.2.4-dev - Connection Pooling

    • Tuned PostgreSQL/Hikari connection pool settings
    • Tuned Redis/Lettuce pool settings and timeouts
    • Introduced shared pooled outbound HTTP client for provider services
    • Added configurable HTTP client pool thread limits and connect timeout

    Validation Highlights

    • Migration validation workflow passing with new index migration
    • Compose smoke test hotfixed for version-agnostic Flyway success detection
    • CodeQL passing on the latest performance branch state

    Upgrade Notes

    No breaking API changes in v2.3.0.
    Operational teams should review environment defaults for:

    • SPRING_DATASOURCE_HIKARI_*
    • SPRING_DATA_REDIS_LETTUCE_POOL_*
    • SYNAPSE_HTTP_*

    Tags Included

    • v2.2.0
    • v2.2.1-dev
    • v2.2.2-dev
    • v2.2.3-dev
    • v2.2.4-dev
    • v2.3.0
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