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Changelog

The reinit option is added to the CLI to reinitialize modules. See #206408.
Possibility to write and combine custom domains for injecting arbitrary SQL. See #205208.

Domain optimization is applied before executing Fields.search methods. All equalities are handled consistently: = is equivalent to in. See #191549.
New cron API for notifying progress with batch commits. See #197781.
Demo data no longer loaded by default. See #194585.

read_group has been deprecated in favor of _read_group for backend usage and of formatted_read_group as formatted public API. See #163300.
@api.private is added to distinguish public Python methods from methods exposed for RPC calls. See #195402.
Native namespaces for odoo module PEP-420. See #195664.

New odoo.domain and odoo.Domain API for domain manipulation. See #170009.
Declare constraints and indexes as model attributes with #175783.
The json controllers have been renamed to jsonrpc. They are called the same, only the type in the python files changed. See #183636.

Searching by name is now implemented as _search_display_name like all other fields. See #174967.
New methods to check access rights and rules now combine both access rights and rules: check_access, has_access and _filtered_access. See #179148.
Translations are made available from the Environment with #174844.

The internal operator inselect is removed. The alternative is to use in with a Query or SQL object. #171371.

We can now group by date parts numbers in read_group, _read_group and domains with #159528.

The group_operator attribute of ~odoo.fields.Field is renamed into aggregator with #127353.
We can now group/aggregate/order by related no-store field with #127353.

Method ~odoo.models.Model._flush_search has been deprecated with #144747. The flushing of fields is now done by ~odoo.api.Environment.execute_query, and is based on metadata put in the ~odoo.tools.SQL object by ~odoo.models.BaseModel._search and other low-level ORM methods that build such objects. Those methods are also responsible for checking the access rights on the fields that are used in the SQL object.

Introduce an ~odoo.tools.SQL wrapper object to make SQL composition easier and safer with respect to SQL injections. Methods of the ORM now use it internally. Introduced by #134677.

Method ~odoo.models.Model.name_get has been deprecated with #122085. Read field display_name instead.

Refactor the implementation of searching and reading methods to be able to combine both in a minimal number of SQL queries. We introduce two new methods ~odoo.models.Model.search_fetch and ~odoo.models.Model.fetch that take advantage of the combination. More details can be found on the pull request #112126.

Translations for translated fields are stored as JSONB values with #97692 and #101115. Code translations are no longer stored into the database. They become static and are extracted from the PO files when needed.
~odoo.models.Model.search_count takes the limit argument into account with #95589. It limits the number of records to count, improving performance when a partial result is acceptable.

New API for flushing to the database and invalidating the cache with #87527. New methods have been added to odoo.models.Model and odoo.api.Environment, and are less confusing about what is actually done in each case. See the section SQL Execution <reference/orm/sql>.

The argument args is renamed to domain for ~odoo.models.Model.search, ~odoo.models.Model.search_count and ~odoo.models.Model._search. #83687
~odoo.models.Model.filtered_domain conserves the order of the current recordset. #83687
~odoo.models.Model.browse does not accept str as ids. #83687
The methods ~odoo.models.Model.fields_get_keys and ~odoo.models.Model.get_xml_id on ~odoo.models.Model are deprecated. #83687
The method ~odoo.models.Model._mapped_cache is removed. #83687
Remove the limit attribute of ~odoo.fields.One2many and ~odoo.fields.Many2many. #83687

Specific index types on fields: With #83274 and #83015, developers can now define what type of indexes can be used on fields by PostgreSQL. See the index property <reference/fields> of odoo.fields.Field.
The _sequence attribute of ~odoo.models.Model is removed. Odoo lets PostgreSQL use the default sequence of the primary key. #82727
The method ~odoo.models.Model._write does not raise an error for non-existing records. #82727
The column_format and deprecated attributes of ~odoo.fields.Field are removed. #82727

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