Commits on Mar 2, 2026

1. release: 4.2.0 (#260) …

   Automated Release PR
   ---
   
   
   ## 4.2.0 (2026-03-02)
   
   Full Changelog:
   [v4.1.0...v4.2.0](v4.1.0...v4.2.0)
   
   ## Breaking Changes
   
   - **Removed `priority` parameter and response field from contracts** —
   the `priority` field is no longer accepted as an input or returned in
   contract responses.
   
   ## Features
   
   - **Minimum config support for percentage and tiered percentage
   overwrites** — you can now specify a `minimum_config` when defining
   percentage and tiered percentage overwrite rates.
   - **`minimum_config` added to rates and commits** — the `minimum_config`
   field is now available on rate and commit objects, along with
   specialized override tier types.
   - **`subscription_id` field on invoice line items** — invoice line item
   objects now include a `subscription_id` field.
   - **Compound group keys supported in `/v1/usage/groups`** — the usage
   groups endpoint now supports compound group keys for more granular usage
   aggregation.
   - **New package endpoints** — the SDK has been updated to include new
   package endpoints.
   
   ## Bug Fixes
   
   - **Request cancellation during retry wait** — fixed an issue where a
   request could not be canceled while it was waiting to retry.
   - **`NullStruct` serialization** — the encoder now correctly serializes
   `NullStruct` values.
   
   ## Docs
   
   - Added missing documentation descriptions across several API fields.
   
   ---------
   
   Co-authored-by: stainless-app[bot] <142633134+stainless-app[bot]@users.noreply.github.com>

   

   stainless-app[bot] authored Mar 2, 2026
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