v0.550000.3

• Updated golang.org/x/sys to v0.48.0, raising the minimum supported Go version to 1.26. The recommended toolchain remains Go 1.27.1.
• Updated Tokio to 1.53.1 and the Futures crates to 0.3.34.
• Updated all workflows to use SHA-pinned actions/checkout v7.0.1 and actions/setup-go v7.0.0.

v0.550000.2

• Consolidated query and statement execution and simplified native ownership and cleanup across Go and Rust.
• Fixed statement preparation to honor the configured SQL dialect and preserve parameters owned by SQL PREPARE and CREATE FUNCTION statements, including under EXPLAIN.
• Upgraded Arrow Go to v18.8.0 for correct fractional-hour timezone offsets.
• Added the pinned DataFusion SQLLogicTest corpus, SQL documentation coverage reports, reproducible datasets, and CI runs on Linux, macOS, and Windows. Replaced platform-dependent trigonometric snapshots with portable assertions. Two zero-length fixed-size-list assertions remain disabled pending Arrow Go support, and parallel spill stress tests run as nonblocking diagnostics.
• Expanded lifecycle, installation, conformance, fuzzing, and native ABI checks, and clarified setup and usage documentation.

v0.550000.1

• Fixed Arrow reader callback panics leaking imported buffers, premature reader finalization during active reads, and native connection access racing with close or session reset.
• Hardened automatic native library loading with canonical path, ownership, permission, and platform ACL checks. Explicit library paths must now be absolute; downloads and redirects require HTTPS, and native asset sizes are bounded. Restricted Windows DLL dependency searches and disabled runtime loading for privileged processes.
• Rejected embedded NULs before C-string conversion and oversized parameter ordinals before allocation. Sanitized NULs in streamed execution errors to prevent native process aborts.
• Added memory, concurrency, callback, and loader security regression tests, and documented process isolation requirements for untrusted SQL and native providers.

v0.550000.0

• Upgraded bundled Apache DataFusion to 55.0.0 and Arrow Rust to 59.3.0. Foreign table providers must be built with datafusion-ffi 55.0.0; the exact version handshake rejects older providers before dereferencing their pointers.
• Fixed parameterized CREATE TABLE and CREATE VIEW statements by binding their logical plans before executing DDL, preserving existing tables when parameter validation fails.
• Fixed cached prepared statements retaining and querying old isolated sessions, failed session initialization exposing previous session state, and native runtimes leaking after direct Driver.Open/Close calls.
• Made Arrow reader cancellation interrupt active reads and made DDL and shared-initialization waits honor context deadlines. Added native lifetime and allocation regression tests.
• Removed an unnecessary full IPC buffer copy during safe Arrow registration. Documented query memory budgets and the complete foreign-provider/library lifetime contract, including pooled connections and retained batches.
• Updated vulnerable dependencies and added Go/Rust advisory scans and dependency monitoring. The module now requires Go 1.25+, recommends the patched Go 1.27.1 toolchain, and requires Rust 1.94+ for source builds.

v0.540100.0

• Upgraded the bundled Apache DataFusion to 54.1.0. No driver API changed.
• datafusion-ffi 54 builds its stable ABI on stabby instead of abi_stable, so foreign table providers passed to RegisterFFITableProvider must come from datafusion-ffi 54.1.0. The exact DataFusionVersion handshake rejects providers built against any other version before their pointer is dereferenced.

v0.530100.2

• Added foreign FFI table provider support: register a datafusion-ffi FFI_TableProvider produced by another library with RegisterFFITableProvider and query it with projection and filter pushdown reaching the provider. Returns a *RegisteredTable handle for explicit Deregister, with an exact DataFusionVersion handshake checked before the provider pointer is dereferenced.
• Restructured the README in Apache DataFusion style.

v0.530100.1

Initial release for Apache DataFusion 53.1.0.

• Added a database/sql driver backed by an in-process DataFusion SessionContext.
• Added bundled native static-library build and release automation for darwin-amd64, darwin-arm64, linux-amd64, linux-arm64, and windows-amd64.
• Added source, bundled, static-library, and no-cgo link-mode test coverage.
• Added SQL parameter binding for common scalar, temporal, decimal, binary, and typed-null values.
• Added Arrow-native query streaming through QueryArrowContext.
• Added Arrow record-reader table registration through safe IPC copy and native zero-copy materialized registration.
• Added shared-session and isolated-session connection modes.
• Added native cancellation, native error kinds, and panic containment across the Rust/C/Go boundary.