Enabled federation to AWS Redshift (and older PG) via special “quirk” enabling PostgreSQL 8 compatible schema inference (no JSON, composites, enums, etc)

Fix proto reification of ListingScan nodes when projecting partition columns

Preserve schema metadata for DataSourceExec / FileScanConfig across proto ser/de boundary

Fix executor panics when default tmpfs is not writeable

Made Ballista clients scheduler-agnostic by implementing catalog RPC. Clients can now create logical plans and query any scheduler independently of server customizations—without knowing about custom table providers, logical nodes, or data source configurations. The scheduler’s catalog is now accessible remotely, eliminating the need for clients to replicate data source setup.

JVM HotSpot AES-NI IV counter overvlow in aarch64 JIT intrinsic implementation.

Enabled use of the Appender API for raw byte[] appends, eliminating an extra copy when called from Java

Improved ART index projection/column binding logic to fix index scans for views that had column orders differing from that of the underlying table

Enables ART index scans with composite keys by implementing a new ART index scan and state for equality assertions. Before this change, composite keys were only supported for enforcing uniqueness constraints. Now they can be queried too!

Wrote ODBC data connector enabling federation to ~hundreds of databases (and platforms like Salesforce)

Added static embedding model support via Model2Vec with in-process parallelism to increase vector embedding throughput by over 10x

Added UDF for vector embeddings to allow SQL/DF native expression of vector embeddings during ingestion and search

Introduced hybrid search UDTF with an easy high-level API for Reciprocal-Rank-Fusion, supporting variadic subqueries, custom smoothing, custom join key, and rank/recency boosting with customizable decay.

Integrated Apache Ballista to scale database runtime past single-process to a clustered, horizontally scalable execution model. Implemented physical plan optimizer pipeline that increased data lake scan performance 5-7x over the equivalent Spark SQL query (dynamic sizing & parallelization of DataSourceExec, projection pushdown).

Implemented ser/de for AppleSingle files to/from ProDOS for the popular CADIUS disk image utility

Meta-PR that fixed:

• OAuth 2 for Python, Ruby, PHP
• Nested DTO ser/de
• LOCATION header consistency
• Support for hypermedia style path identifiers

Feature to allow customization of SSLSocketFactory for Java fluentd/fluent bit ingestion logger

GZIP NewRelic API requests to allow sending larger frames

Fixed count(*) queries for widely used no-op ActiveRecord adapter

Fixed string inflector for popular Rails API pagination library

Remove a deprecated function from FFI bindings

Wrote ActiveRecord/Mongoid relation extension for ruby-grape’s hypermedia presenter library, allowing easy declaration -> auto-generation of HAL links from ORM relationships

Enabled popular classifier library to run on JRuby by hooking up a native Java stemming library

Fixed string deserialization for Python YAJL library