This update reorganizes how message threads and chatter loading are handled, making the underlying messaging code easier to maintain. For business users, the expected impact is smoother long-term reliability in recruitment-related communication areas without changing day-to-day workflows.

This reduces the complexity of thread_service,
and encapsulate self-contained code of chatter-specific code of thread and message list loading.

https://github.com/odoo/odoo/pull/121090

This draft updates how messaging-related data is organized behind the scenes so it can be stored and found more consistently. The change supports future cleanup and maintenance work, with little expected direct impact on day-to-day users.

https://github.com/odoo/odoo/pull/130602

This change updates several Enterprise modules to align with a behind-the-scenes restructuring of Odoo's messaging framework. It helps keep accounting, approvals, and documents features compatible with the latest internal architecture without changing the user-facing workflow.

https://github.com/odoo/odoo/pull/132442

Adapt enterprise code with moving `insert()` method in the discuss model class, rather than a service coupled with the model.