2.4.21 (2026-01-13) Bug Fixes bedrock: eliminate default params & fix debug logging (adcc716) Features add Amazon Bedrock AI provider with dual runtime support (1318989) bedrock: add application endpoint support with API key auth (33cb9b8) bedrock: add enhanced debug logging for authentication and AWS SDK errors (1fa77cd) bedrock: add flexible inferenceParameters config field (63c3726)