Dagster 1.10 introduces unified concurrency pools replacing the previous tag-based approach, a new `pool` argument on assets, and improved UI visibility for concurrency management. ELT integrations with Fivetran and Airbyte are modernized with a translator pattern and a consolidated `get_asset_spec()` method. Developer experience improvements include GRPC server consolidation for `dagster dev`, flexible asset dependency declarations, improved IO manager support for `multi_asset_check`, per-partition metadata, new module loading APIs, and a formal API lifecycle system with preview/beta/superseded stages.
