4.9.1 — 2026-05-12

← 4.9.2 | 4.9.0 → | ↑ 4.x series

Fixed

Adapters - ScyllaDB

• Async Callback Fix - Fixed async error handling in ScyllaDB adapter by replacing run_in_executor with callback-based approach.
  • Uses add_callbacks to bridge cassandra-driver's ResponseFuture to asyncio.Future
  • Avoids ThreadPoolExecutor bottleneck under high concurrency
  • Properly constructs ResultSet from raw rows in the success callback

Dependencies

Adapters - ScyllaDB

• ScyllaDB and Driver Upgrades - Updated ScyllaDB test container and Python driver to latest versions.
  • Upgraded ScyllaDB Docker image to 2026.1.2
  • Updated scylla-driver to 3.29.10

Chore - Dependencies

• Dependency Updates - Upgraded multiple Python packages for improved compatibility and security.
  • Updated idna to 3.14
  • Updated python-multipart to 0.0.28
  • Updated requests to 2.34.0

Helpers - Tracing

• Elastic APM Initialization - Enhanced Elastic APM client initialization by excluding IS_ENABLED from model dump.
  • Prevents potential configuration leaks in APM agent initialization