What changed in odoo 17?
    Views. XML.
- Attribute "attrs" deprecated. It look like 
 <field name="url" widget="url" attrs="{'invisible':[('type','=','binary')]}"/>
 to <field name="url" widget="url" invisible="type == 'binary'"/>
- Res.config.settings changed inherit. Look like:<xpath expr="//div[hasclass('settings')]" position="inside">
 to<xpath expr="//app[@name='general_settings']" position="inside"><block title="Attachments center" name="attachments_center">
Python. Backend.
mail.channel model migrate to discuss.channel
outbound_payment_method_ids  to outbound_payment_method_line_ids 
inbound_payment_method_ids to inbound_payment_method_line_ids
 
Owl. Frontend. Js.
1. Main difference it "patch" change import path:
import { patch } from "web.utils";
to
to
import { patch } from "@web/core/utils/patch";
2. Patch now not get second name parametr:
2. Patch now not get second name parametr:
patch(ChatterTopbar.prototype, "attachments_manager_chatter_topbar", {/*OUR CODE*/})
to
to
patch(ChatterTopbar.prototype, {/*OUR CODE*/})
3. When patch and override "setup" method, some code will
also breaks:
3. When patch and override "setup" method, some code will
also breaks:
patch(ChatterTopbar.prototype, {
  setup() {
    this._super(...arguments);
...
to
...
to
patch(ChatterTopbar.prototype, {
  setup() {
    super.setup();
Warnings
                    Views. XML.
                    
                        
                            
                        
                    
                
                  1.  active_id, active_ids shoulde be replace with is ids
<field
<field
                                name="child_category_ids"
                                widget="one2many"
                                mode="tree"
                                context="{'default_parent_id': active_id}"
                            />
to
to
                            <field
                                name="child_category_ids"
                                widget="one2many"
                                mode="tree"
                                context="{'default_parent_id': id}"
                            />
2. In all XML first string like this should be deleted
<?xml version="1.0" encoding="utf-8"?>
                    Python. Backend.
                    
                        
                            
                        
                    
                
                   1.Readonly attr houl be bool
file_ids = fields.One2many(
file_ids = fields.One2many(
        comodel_name="ir.attachment",
        inverse_name="category_id",
        string="Files",
        readonly=True,
    )
                    Owl. Frontend. Js,
                    
                        
                            
                    
                
            In process...