diff --git a/addons/mrp/models/mrp_bom.py b/addons/mrp/models/mrp_bom.py
index 6ace858bc78..7e106d7315b 100644
--- a/addons/mrp/models/mrp_bom.py
+++ b/addons/mrp/models/mrp_bom.py
@@ -314,7 +314,7 @@ class MrpBomLine(models.Model):
         if not self.parent_product_tmpl_id:
             return {}
         return {'domain': {'attribute_value_ids': [
-            ('id', 'in', self.parent_product_tmpl_id._get_valid_product_attribute_values().ids),
+            ('id', 'in', self.parent_product_tmpl_id.valid_product_attribute_value_ids.ids),
             ('attribute_id.create_variant', '!=', 'no_variant')
         ]}}
 
diff --git a/addons/product/models/product.py b/addons/product/models/product.py
index 936b3350f54..cf1f70b579d 100644
--- a/addons/product/models/product.py
+++ b/addons/product/models/product.py
@@ -373,8 +373,6 @@ class ProductProduct(models.Model):
         self.clear_caches()
         self.env['product.template'].invalidate_cache(
             fnames=[
-                'valid_archived_variant_ids',
-                'valid_existing_variant_ids',
                 'product_variant_ids',
                 'product_variant_id',
                 'product_variant_count'
@@ -662,11 +660,6 @@ class ProductProduct(models.Model):
 
         return prices
 
-    # compatibility to remove after v10 - DEPRECATED
-    @api.multi
-    def price_get(self, ptype='list_price'):
-        return self.price_compute(ptype)
-
     @api.model
     def get_empty_list_help(self, help):
         self = self.with_context(
diff --git a/addons/product/models/product_pricelist.py b/addons/product/models/product_pricelist.py
index 730d972405c..03ac7876101 100644
--- a/addons/product/models/product_pricelist.py
+++ b/addons/product/models/product_pricelist.py
@@ -290,12 +290,6 @@ class Pricelist(models.Model):
         self.ensure_one()
         return self._compute_price_rule([(product, quantity, partner)], date=date, uom_id=uom_id)[product.id]
 
-    # Compatibility to remove after v10 - DEPRECATED
-    @api.model
-    def _price_rule_get_multi(self, pricelist, products_by_qty_by_partner):
-        """ Low level method computing the result tuple for a given pricelist and multi products - return tuple """
-        return pricelist._compute_price_rule(products_by_qty_by_partner)
-
     @api.multi
     def price_get(self, prod_id, qty, partner=None):
         """ Multi pricelist, mono product - returns price per pricelist """
@@ -318,16 +312,6 @@ class Pricelist(models.Model):
         return pricelist.get_products_price(
             list(zip(**products_by_qty_by_partner)))
 
-    # DEPRECATED (Not used anymore, see d39d583b2) -> Remove me in master (saas12.3)
-    def _get_partner_pricelist(self, partner_id, company_id=None):
-        """ Retrieve the applicable pricelist for a given partner in a given company.
-
-            :param company_id: if passed, used for looking up properties,
-             instead of current user's company
-        """
-        res = self._get_partner_pricelist_multi([partner_id], company_id)
-        return res[partner_id].id
-
     def _get_partner_pricelist_multi_search_domain_hook(self):
         return []
 
diff --git a/addons/product/models/product_template.py b/addons/product/models/product_template.py
index a6b1b43251d..b249acb9fda 100644
--- a/addons/product/models/product_template.py
+++ b/addons/product/models/product_template.py
@@ -135,12 +135,6 @@ class ProductTemplate(models.Model):
         compute="_compute_valid_attributes", string='Valid Product Attribute Values Without No Variant Attributes', help="Technical compute")
     valid_product_attribute_wnva_ids = fields.Many2many('product.attribute',
         compute="_compute_valid_attributes", string='Valid Product Attributes Without No Variant Attributes', help="Technical compute")
-    # valid_archived_variant_ids deprecated
-    valid_archived_variant_ids = fields.Many2many('product.product',
-        compute="_compute_valid_archived_variant_ids", string='Valid Archived Variants', help="Technical compute")
-    # valid_existing_variant_ids deprecated
-    valid_existing_variant_ids = fields.Many2many('product.product',
-        compute="_compute_valid_existing_variant_ids", string='Valid Existing Variants', help="Technical compute")
 
     product_variant_ids = fields.One2many('product.product', 'product_tmpl_id', 'Products', required=True)
     # performance: product_variant_id provides prefetching on the first product variant only
@@ -482,11 +476,6 @@ class ProductTemplate(models.Model):
 
         return prices
 
-    # compatibility to remove after v10 - DEPRECATED
-    @api.model
-    def _price_get(self, products, ptype='list_price'):
-        return products.price_compute(ptype)
-
     @api.multi
     def create_variant_ids(self):
         Product = self.env["product.product"]
@@ -500,7 +489,7 @@ class ProductTemplate(models.Model):
             variants_to_unlink = self.env['product.product']
             # adding an attribute with only one value should not recreate product
             # write this attribute on every product to make sure we don't lose them
-            variant_alone = tmpl_id._get_valid_product_template_attribute_lines().filtered(lambda line: line.attribute_id.create_variant == 'always' and len(line.value_ids) == 1).mapped('value_ids')
+            variant_alone = tmpl_id.valid_product_template_attribute_line_ids.filtered(lambda line: line.attribute_id.create_variant == 'always' and len(line.value_ids) == 1).mapped('value_ids')
             for value_id in variant_alone:
                 updated_products = tmpl_id.product_variant_ids.filtered(lambda product: value_id.attribute_id not in product.mapped('attribute_value_ids.attribute_id'))
                 updated_products.write({'attribute_value_ids': [(4, value_id.id)]})
@@ -588,7 +577,7 @@ class ProductTemplate(models.Model):
         :rtype: bool
         """
         self.ensure_one()
-        return any(a.create_variant == 'dynamic' for a in self._get_valid_product_attributes())
+        return any(a.create_variant == 'dynamic' for a in self.valid_product_attribute_ids)
 
     @api.multi
     def _compute_valid_attributes(self):
@@ -622,51 +611,6 @@ class ProductTemplate(models.Model):
             record.valid_product_attribute_ids = record.valid_product_template_attribute_line_ids.mapped('attribute_id')
             record.valid_product_attribute_wnva_ids = record.valid_product_template_attribute_line_wnva_ids.mapped('attribute_id')
 
-    @api.multi
-    def _compute_valid_archived_variant_ids(self):
-        """This compute is done outside of `_compute_valid_attributes` because
-        it is often not needed, and it can be very bad on performance."""
-        archived_variants = self.env['product.product'].search([('product_tmpl_id', 'in', self.ids), ('active', '=', False)])
-        for record in self:
-            valid_value_ids = record.valid_product_attribute_value_wnva_ids
-            valid_attribute_ids = record.valid_product_attribute_wnva_ids
-
-            record.valid_archived_variant_ids = archived_variants.filtered(
-                lambda v: v.product_tmpl_id == record and v._has_valid_attributes(valid_attribute_ids, valid_value_ids)
-            )
-
-    @api.multi
-    def _compute_valid_existing_variant_ids(self):
-        """This compute is done outside of `_compute_valid_attributes` because
-        it is often not needed, and it can be very bad on performance."""
-        existing_variants = self.env['product.product'].search([('product_tmpl_id', 'in', self.ids), ('active', '=', True)])
-        for record in self:
-
-            valid_value_ids = record.valid_product_attribute_value_wnva_ids
-            valid_attribute_ids = record.valid_product_attribute_wnva_ids
-
-            record.valid_existing_variant_ids = existing_variants.filtered(
-                lambda v: v.product_tmpl_id == record and v._has_valid_attributes(valid_attribute_ids, valid_value_ids)
-            )
-
-    @api.multi
-    def _get_valid_product_template_attribute_lines(self):
-        """deprecated, use `valid_product_template_attribute_line_ids`"""
-        self.ensure_one()
-        return self.valid_product_template_attribute_line_ids
-
-    @api.multi
-    def _get_valid_product_attributes(self):
-        """deprecated, use `valid_product_attribute_ids`"""
-        self.ensure_one()
-        return self.valid_product_attribute_ids
-
-    @api.multi
-    def _get_valid_product_attribute_values(self):
-        """deprecated, use `valid_product_attribute_value_ids`"""
-        self.ensure_one()
-        return self.valid_product_attribute_value_ids
-
     @api.multi
     def _get_possible_variants(self, parent_combination=None):
         """Return the existing variants that are possible.
@@ -707,10 +651,6 @@ class ProductTemplate(models.Model):
             - exclusions: from this product itself
             - parent_combination: ids of the given parent_combination
             - parent_exclusions: from the parent_combination
-            - archived_combinations: deprecated
-            - existing_combinations: deprecated
-            - has_dynamic_attributes: deprecated
-            - no_variant_product_template_attribute_value_ids: deprecated
            - parent_product_name: the name of the parent product if any, used in the interface
                to explain why some combinations are not available.
                (e.g: Not available with Customizable Desk (Legs: Steel))
@@ -724,10 +664,6 @@ class ProductTemplate(models.Model):
             'exclusions': self._complete_inverse_exclusions(self._get_own_attribute_exclusions()),
             'parent_exclusions': self._get_parent_attribute_exclusions(parent_combination),
             'parent_combination': parent_combination.ids,
-            'archived_combinations': [],
-            'has_dynamic_attributes': self.has_dynamic_attributes(),
-            'existing_combinations': [],
-            'no_variant_product_template_attribute_value_ids': [],
             'parent_product_name': parent_name,
             'mapped_attribute_names': self._get_mapped_attribute_names(parent_combination),
         }
@@ -756,7 +692,7 @@ class ProductTemplate(models.Model):
         the value is an array with the other ptav that they exclude (empty if no exclusion).
         """
         self.ensure_one()
-        product_template_attribute_values = self._get_valid_product_template_attribute_lines().mapped('product_template_value_ids')
+        product_template_attribute_values = self.valid_product_template_attribute_line_ids.product_template_value_ids
         return {
             ptav.id: [
                 value_id
@@ -793,29 +729,6 @@ class ProductTemplate(models.Model):
 
         return result
 
-    @api.multi
-    def _get_archived_combinations(self):
-        """Deprecated"""
-        self.ensure_one()
-        return [archived_variant.product_template_attribute_value_ids.ids
-            for archived_variant in self.valid_archived_variant_ids]
-
-    @api.multi
-    def _get_existing_combinations(self):
-        """Deprecated"""
-        self.ensure_one()
-        return [variant.product_template_attribute_value_ids.ids
-            for variant in self.valid_existing_variant_ids]
-
-    @api.multi
-    def _get_no_variant_product_template_attribute_values(self):
-        """Deprecated"""
-        self.ensure_one()
-        product_template_attribute_values = self._get_valid_product_template_attribute_lines().mapped('product_template_value_ids')
-        return product_template_attribute_values.filtered(
-            lambda v: v.attribute_id.create_variant == 'no_variant'
-        ).ids
-
     @api.multi
     def _get_mapped_attribute_names(self, parent_combination=None):
         """ The name of every attribute values based on their id,
@@ -826,7 +739,7 @@ class ProductTemplate(models.Model):
         the parent combination if provided.
         """
         self.ensure_one()
-        all_product_attribute_values = self._get_valid_product_template_attribute_lines().mapped('product_template_value_ids')
+        all_product_attribute_values = self.valid_product_template_attribute_line_ids.product_template_value_ids
         if parent_combination:
             all_product_attribute_values |= parent_combination
 
diff --git a/addons/product/tests/test_product_attribute_value_config.py b/addons/product/tests/test_product_attribute_value_config.py
index 497f6fbeba3..5f53bf906c6 100644
--- a/addons/product/tests/test_product_attribute_value_config.py
+++ b/addons/product/tests/test_product_attribute_value_config.py
@@ -156,7 +156,7 @@ class TestProductAttributeValueSetup(TransactionCase):
         """
         if not model:
             model = self.computer
-        return model._get_valid_product_template_attribute_lines().filtered(
+        return model.valid_product_template_attribute_line_ids.filtered(
             lambda l: l.attribute_id == product_attribute_value.attribute_id
         ).product_template_value_ids.filtered(
             lambda v: v.product_attribute_value_id == product_attribute_value
diff --git a/addons/sale/models/sale.py b/addons/sale/models/sale.py
index d6afcd519bf..966588c4750 100644
--- a/addons/sale/models/sale.py
+++ b/addons/sale/models/sale.py
@@ -1373,21 +1373,6 @@ class SaleOrderLine(models.Model):
         }
         return res
 
-    @api.multi
-    def invoice_line_create(self, invoice_id, qty):
-        """ Create an invoice line. The quantity to invoice can be positive (invoice) or negative (refund).
-
-            .. deprecated:: 12.0
-                Replaced by :func:`invoice_line_create_vals` which can be used for creating
-                `account.invoice.line` records in batch
-
-            :param invoice_id: integer
-            :param qty: float quantity to invoice
-            :returns recordset of account.invoice.line created
-        """
-        return self.env['account.invoice.line'].create(
-            self.invoice_line_create_vals(invoice_id, qty))
-
     def invoice_line_create_vals(self, invoice_id, qty):
         """ Create an invoice line. The quantity to invoice can be positive (invoice) or negative
             (refund).
@@ -1454,12 +1439,12 @@ class SaleOrderLine(models.Model):
 
         # remove the is_custom values that don't belong to this template
         for pacv in self.product_custom_attribute_value_ids:
-            if pacv.attribute_value_id not in self.product_id.product_tmpl_id._get_valid_product_attribute_values():
+            if pacv.attribute_value_id not in self.product_id.product_tmpl_id.valid_product_attribute_value_ids:
                 self.product_custom_attribute_value_ids -= pacv
 
         # remove the no_variant attributes that don't belong to this template
         for ptav in self.product_no_variant_attribute_value_ids:
-            if ptav.product_attribute_value_id not in self.product_id.product_tmpl_id._get_valid_product_attribute_values():
+            if ptav.product_attribute_value_id not in self.product_id.product_tmpl_id.valid_product_attribute_value_ids:
                 self.product_no_variant_attribute_value_ids -= ptav
 
         vals = {}
diff --git a/addons/sale/views/variant_templates.xml b/addons/sale/views/variant_templates.xml
index d9d28998e64..8ea33efeb05 100644
--- a/addons/sale/views/variant_templates.xml
+++ b/addons/sale/views/variant_templates.xml
@@ -3,7 +3,7 @@
     <template id="variants">
         <t t-set="attribute_exclusions" t-value="product._get_attribute_exclusions(parent_combination, parent_name)"/>
         <ul t-attf-class="list-unstyled js_add_cart_variants #{ul_class}" t-att-data-attribute_exclusions="json.dumps(attribute_exclusions)">
-            <t t-foreach="product._get_valid_product_template_attribute_lines()" t-as="variant_id">
+            <t t-foreach="product.valid_product_template_attribute_line_ids" t-as="variant_id">
                 <!-- Attributes selection is hidden if there is only one value available and it's not a custom value -->
                 <li t-att-data-attribute_id="variant_id.attribute_id.id"
                     t-att-data-attribute_name="variant_id.attribute_id.name"
diff --git a/addons/website_forum/controllers/main.py b/addons/website_forum/controllers/main.py
index bd62e519338..86ce6993a90 100644
--- a/addons/website_forum/controllers/main.py
+++ b/addons/website_forum/controllers/main.py
@@ -36,24 +36,6 @@ class WebsiteForum(WebsiteProfile):
             values['forum'] = request.env['forum.forum'].browse(kwargs.pop('forum_id'))
         return values
 
-    # User and validation
-    # --------------------------------------------------
-    # TODO DBE : Those 3 are deprecated. To remove in v13.
-    @http.route('/forum/send_validation_email', type='json', auth='user', website=True)
-    def send_forum_validation_email(self, forum_id=None, **kwargs):
-        _logger.warning("The method send_forum_validation_email() is deprecated and should be removed in v13.")
-        return self.send_forum_validation_email(forum_id=forum_id, **kwargs)
-
-    @http.route('/forum/validate_email', type='http', auth='public', website=True, sitemap=False)
-    def forum_validate_email(self, token, user_id, email, forum_id=None, **kwargs):
-        _logger.warning("The method forum_validate_email() is deprecated and should be removed in v13.")
-        return self.forum_validate_email(token=token, user_id=user_id, email=email, forum_id=forum_id, **kwargs)
-
-    @http.route('/forum/validate_email/close', type='json', auth='public', website=True)
-    def forum_validate_email_done(self, **kwargs):
-        _logger.warning("The method forum_validate_email_done() is deprecated and should be removed in v13.")
-        return self.validate_email_done(**kwargs)
-
     # Forum
     # --------------------------------------------------
 
diff --git a/addons/website_sale/models/product.py b/addons/website_sale/models/product.py
index e5bf6ca82f4..65b8db17882 100644
--- a/addons/website_sale/models/product.py
+++ b/addons/website_sale/models/product.py
@@ -224,7 +224,7 @@ class ProductTemplate(models.Model):
         :rtype: bool
         """
         self.ensure_one()
-        return any(a.create_variant == 'no_variant' for a in self._get_valid_product_attributes())
+        return any(a.create_variant == 'no_variant' for a in self.valid_product_attribute_ids)
 
     @api.multi
     def _has_is_custom_values(self):
@@ -235,7 +235,7 @@ class ProductTemplate(models.Model):
         :return: True if at least one is_custom attribute value, False otherwise
         :rtype: bool
         """
-        return any(v.is_custom for v in self._get_valid_product_attribute_values())
+        return any(v.is_custom for v in self.valid_product_attribute_value_ids)
 
     @api.multi
     def _get_possible_variants_sorted(self, parent_combination=None):
diff --git a/addons/website_sale/models/website.py b/addons/website_sale/models/website.py
index 742e60c3d61..c2b476feb65 100644
--- a/addons/website_sale/models/website.py
+++ b/addons/website_sale/models/website.py
@@ -118,11 +118,6 @@ class Website(models.Model):
         # This method is cached, must not return records! See also #8795
         return pricelists.ids
 
-    # DEPRECATED (Not used anymore) -> Remove me in master (saas12.3)
-    def _get_pl(self, country_code, show_visible, website_pl, current_pl, all_pl):
-        pl_ids = self._get_pl_partner_order(country_code, show_visible, website_pl, current_pl, all_pl)
-        return self.env['product.pricelist'].browse(pl_ids)
-
     def _get_pricelist_available(self, req, show_visible=False):
         """ Return the list of pricelists that can be used on website for the current user.
         Country restrictions will be detected with GeoIP (if installed).
diff --git a/addons/website_sale_comparison/controllers/main.py b/addons/website_sale_comparison/controllers/main.py
index f6cb6cfc0fe..09a5984d64a 100644
--- a/addons/website_sale_comparison/controllers/main.py
+++ b/addons/website_sale_comparison/controllers/main.py
@@ -20,7 +20,7 @@ class WebsiteSaleProductComparison(WebsiteSale):
 
         res = {}
         for num, product in enumerate(products):
-            for var in product.product_tmpl_id._get_valid_product_template_attribute_lines():
+            for var in product.product_tmpl_id.valid_product_template_attribute_line_ids:
                 cat_name = var.attribute_id.category_id.name or _('Uncategorized')
                 att_name = var.attribute_id.name
                 if not var.attribute_id.create_variant:
diff --git a/addons/website_sale_comparison/models/website_sale_comparison.py b/addons/website_sale_comparison/models/website_sale_comparison.py
index 9c2fbca9082..0cf2c04e950 100644
--- a/addons/website_sale_comparison/models/website_sale_comparison.py
+++ b/addons/website_sale_comparison/models/website_sale_comparison.py
@@ -26,6 +26,6 @@ class ProductTemplate(models.Model):
 
     def get_variant_groups(self):
         res = OrderedDict()
-        for var in self._get_valid_product_template_attribute_lines():
+        for var in self.valid_product_template_attribute_line_ids:
             res.setdefault(var.attribute_id.category_id.name or _('Uncategorized'), []).append(var)
         return res