This update adds more efficient ways for Odoo to combine groups of records internally. It can help developers and system processes handle record collections with less overhead, supporting better performance without changing everyday user workflows.

As the title says:

``` python
recs0.concat(recs1, ..., recsn)     # same as recs0 + recs1 + ... + recsn
recs0.union(recs1, ..., recsn)      # same as recs0 | recs1 | ... | recsn
```

Subscriptions now include pivot and graph views, making it easier for teams to analyze subscription data visually. This helps business users spot trends and compare performance without relying on custom exports or technical reporting work.

Task: https://www.odoo.com/web?#id=21702&view_type=form&model=project.task&action=333&active_id=131&menu_id=4720
Pad: https://pad.odoo.com/p/r.PD1BJCCvjFgxSq3s

Adds a new auction capability that lets the business manage auction lots, bids, categories, demo content, and public website presentation. This creates a dedicated sales channel for auction-based selling and improves how visitors can browse and filter available lots online.

- Task : https://www.odoo.com/web?#id=12586&view_type=form&model=project.task&action=333&active_id=131
- Pad : https://pad.odoo.com/p/r.PYj1DpORf82TQew7

This change adds an embedded code-style editor for selected backend text fields, making it easier to view and edit structured text such as scripts or templates. The editor is loaded only when needed, helping provide the new editing experience without slowing down normal page use.

use with `widget="ace"` on text fields

This change adds an embedded code editor to the web module so users can edit technical text fields, such as Python or XML, with better formatting and readability. It loads the editor only when needed, helping support website and web editing without adding unnecessary overhead elsewhere.

…e are going to create ace editor widget for web module

Task: https://www.odoo.com/web?#id=12841&view_type=form&model=project.task&action=327
Pad: https://pad.odoo.com/p/r.FEH8ALWJdkNQniJU