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Free tool by SNM Digitech

Odoo Change Explorer: what changed between Odoo 16, 17, 18, 19 and 20

Search any model, field or view XML id and see what was added, removed or renamed in every upgrade step, straight from the Odoo source code.

Try: res.partner account.move hr.contract groups_id ir.model.access

2,572models tracked
9,400fields added
3,723fields removed
374models removed

Upgrade steps

Odoo 16 to 17 Community only
Models
+100 -43
Fields
+1397 -534
Views removed
362
Renames
9
See what changed
Odoo 17 to 18 Community only
Models
+114 -29
Fields
+1143 -461
Views removed
206
Renames
13
See what changed
Odoo 18 to 19 Community + Enterprise
Models
+297 -127
Fields
+2606 -1042
Views removed
1126
Renames
49
See what changed
Odoo 19 to 20 Community + Enterprise
Models
+434 -175
Fields
+4254 -1686
Views removed
3552
Renames
53
See what changed

Most-changed core models

Own fields added (+), removed (-) and re-typed per upgrade step.

Model16 to 1717 to 1818 to 1919 to 20Total
res.config.settingsConfig Settings +135 -46 +114 -50 +175 -110 +349 -205 1190
res.companyCompany +115 -33 +85 -23 +149 -39 +240 -104 793
hr.employeeEmployee +17 -4 +5 -2 +329 -19 +280 -82 741
account.moveJournal Entry +136 -16 +134 -20 +74 -48 +144 -52 632
res.partnerContact +43 -6 +38 -17 +64 -35 +86 -43 334
pos.orderPoint of Sale Order +20 -2 +37 -5 +65 -4 +50 -48 236
res.usersUser +17 -4 +8 -2 +33 -96 +47 -10 218
stock.pickingTransfer +42 -4 +11 -6 +33 -11 +56 -2 166
project.taskTask +5 -45 +14 -2 +10 -7 +5 -54 143
product.templateProduct +14 -9 +14 -4 +31 -16 +36 -13 139
account.move.lineJournal Item +9 -4 +22 -5 +33 -4 +43 -5 132
sale.orderSales Order +23 -3 +17 -6 +21 -8 +30 -11 120
stock.moveStock Move +17 -9 +3 -2 +34 -17 +14 -6 102
sale.order.lineSales Order Line +3 -3 +15 -1 +31 -8 +22 -3 87
account.paymentPayment +2 -0 +16 -10 +9 -2 +32 -10 82
mrp.productionManufacturing Order +9 -5 +9 -4 +10 -3 +15 -8 63
product.productProduct Variant +5 -3 +7 -1 +13 -7 +15 -11 62
purchase.orderPurchase Order +1 -1 +8 -4 +10 -7 +8 -1 41
crm.leadLead +5 -2 +0 -1 +4 -2 +5 -4 23
stock.quantQuant +2 -0 +1 -1 +1 -0 +2 -1 8

How to use it

  • Search a model (sale.order) to see every version it exists in, its module and each field added, removed, renamed or re-typed.
  • Search a field as model.field (res.users.groups_id) or just its name.
  • Paste an XML id from an upgrade error ("External ID not found") to see when that view, menu or action disappeared.
  • Open an upgrade step for the breaking changes, removed models and renamed fields of that release.

Where the data comes from

Coverage. Odoo 16 to 17 and 17 to 18 compare Community modules only (the Enterprise 16 and 17 sources are not available to us). Odoo 18 to 19 and 19 to 20 include Community and Enterprise modules. Everything here comes from a static read of the Odoo source code: a field counts as removed only when no parent model, mixin or delegated model still provides it. Fields created dynamically at run time can be missed, and entries we could not confirm are marked as low confidence.

Planning an Odoo upgrade?

Odoo app Check your own database: Studio Upgrade Checker Scans your Studio fields, views, automations and custom code for everything listed here before you upgrade. See it on the Odoo Apps store Odoo app Fix broken views: Studio View Repair Assistant Finds views that stopped loading after an upgrade and helps you repair the xpaths and fields they point at. See it on the Odoo Apps store Upgrade service Need the upgrade done? Book a call We move databases between major Odoo versions, port custom modules and validate the data. Book a call Free Free upgrade scan, we run it for you Send us a copy of your database or give us access and we report what will break on the target version. Ask for a scan