Concise monthly summary for 2025-08: Key features delivered: Azure VectorStore Metadata Mutability Bug Fix implemented by introducing parseMetadataToMutable to store metadata as a mutable HashMap and adding unit tests. Major bugs fixed: resolved the non-mutable metadata issue in AzureVectorStore that caused UnsupportedOperationException. Overall impact: increased stability and reliability of Azure VectorStore integration, reduced risk of metadata mutations breaking runtime flows, with improved test coverage. Technologies/skills demonstrated: Java, HashMap mutability patterns, unit testing, Azure AI Search integration, and clean commit hygiene.

May 2025: Focused on stability and correctness in wazuh-indexer, delivering a critical bug fix that prevents incorrect reuse of MatrixStatsAggregator when the aggregation mode changes, along with comprehensive tests and backward compatibility verification. The change strengthens reliability of matrix-based analyses and sets groundwork for future enhancements in multiValueMode handling.