Log Message:
New Tryton release 3.8
http://www.tryton.org/news/index.html

Major changes for the developer

    The progress bar widget works with float between 0 and 1 to ease usage as
    percentage.

    The rich text widget uses now a subset of HTML to allow its implementation
    in sao.

    The Many2One has a new option target_search which define the kind of query
    to use for dereferenced search. The options are subquery and the new join
    (which is the default). The join method generate a faster query in most
    cases.

    The SQL constraints use a similar syntax to python-sql. This gives more
    flexibility to implement backend for other databases.

    Trying to create/write/delete on a Model based on a table_query raises an
    exception instead of a silent error.

    The table name of a ModelSQL can be overridden with a configuration file.
    This allows to work around database limitations on the length of table
    names.

    The new StateReport has been added to wizards, to simplify the code of
    wizards that run a report.
    The style on reports has been removed, experience show that this feature
    was not used.

    The PostgreSQL backend manages now schema. This allows different instances
    of Tryton sharing the same database.

    The generic foreign key to create/write user on all ModelSQL has been
    replaced by a rule that prevent to delete users. This greatly improves
    scalability in some circumstances.

    The Property field supports now float and integer values.
    A subdirectory locale/override is supported for modules that override
    translations of other modules.

Accounting

    The charts of account are no longer translatable. Instead we provide
    translated charts via a template using XSLT.

    The invoice doesn't set a unit price on the line. For this feature the
    purchase or sale module must be used.

    Some fields of the invoice like the note and the origin are editable after
    posting the invoice.

Product

    Conversion between units no longer results in silent failures but an
    explicit error is risen.

    The volume property has been added to the products.

Project

    The tree structure of the project and the time sheet have been separated,
    each object has its own one.

    The price list uses the same decimal precision as the product.

    The cost price of the employee is stored on the time sheet line for the
    date of the line. This allows to sum the costs of time sheet faster

Purchase

    The state of the purchase request is now searchable.

    The purchase requests are generated even if the rounded quantity is zero
    to allow the user to still decide to purchase more.

Stock

    Many unnecessary restrictions on the edition of move fields have been
    removed.

    The expected quantity of the inventory lines is always computed even if
    they are added manually.

    It is possible to create staging and draft moves using view locations.
    Those locations will have to be changed to really do the move.

    The inventory uses the grouping feature to create the moves. This allows
    to easily support the lot (or any other extra field).