Customers now receive clear error messages during checkout when they enter an invalid VAT number or incorrectly formatted email address. This helps them correct billing details immediately, reducing checkout confusion and failed order submissions.

Give a proper error message, if users enter invalid VAT number as well as check email address is in valid format. 

<b>Task:</b> https://www.odoo.com/web#id=9970&view_type=form&model=project.task&menu_id=3942&action=327
<b>Pad:</b> https://pad.odoo.com/p/r.5xdH8OsRKzEJJzl9

The email and mass mailing designer now offers more styling options, including background colors, font colors, button styles, icons, and refreshed content blocks. This helps marketing teams create richer, more branded emails directly in Odoo with less manual design work.

...ound color, font color and bootstrap buttons(inline css) in mail designer + added new snippets + improved snippet categories
- Task: https://www.odoo.com/web?#id=9439&view_type=form&model=project.task
- Pad: https://pad.odoo.com/p/r.7aiZsyw4go0bC7De

Clicking an already selected radio button now leaves the choice selected instead of clearing it. This prevents accidental loss of a user's selection and improves reliability, including for options represented by zero values.

A click on a radio button which is already checked will not "uncheck its value" anymore.

PAD: https://pad.odoo.com/p/r.4fNmo1YrgWvKmHoh
TASK: https://www.odoo.com/web#id=11386&view_type=form&model=project.task&menu_id=3942&action=327

Fixed an error that could cause the system to show a traceback when creating a sales order line. This improves reliability for users entering orders and prevents a disruptive interruption in the sales workflow.

Task: https://www.odoo.com/web#id=11811&view_type=form&model=project.task&menu_id=3942&action=327
Pad: https://pad.odoo.com/p/r.L7iGRF78xdzL50jW

The event kanban cards were adjusted to remove a confusing edit link and fix a visual glitch when users hover over an event. This makes browsing events smoother and reduces accidental navigation to the wrong place.

TASK : https://www.odoo.com/web#id=11824&view_type=form&model=project.task&action=333&active_id=248
PAD : https://pad.odoo.com/p/r.4UxiSZ3xxmcLQQhQ