# Tryton Release 2.6

**URL:** https://discuss.tryton.org/t/tryton-release-2-6/6013
**Category:** News
**Created:** [October 23, 2012, 4:00pm UTC](https://discuss.tryton.org/t/tryton-release-2-6/6013 "2012-10-23T16:00:00Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![ced](https://discuss-cdn.tryton.org/user_avatar/discuss.tryton.org/ced/32/1237_2.png) [@ced](https://discuss.tryton.org/u/ced)
#### Post date: [October 23, 2012, 4:00pm UTC](https://discuss.tryton.org/t/tryton-release-2-6/6013/1 "2012-10-23T16:00:00Z")

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We are happy to announce the 2.6 release of [Tryton](http://www.tryton.org/).

This release brings major changes in the [API](http://en.wikipedia.org/wiki/API) with the introduction of the [Active Record](http://en.wikipedia.org/wiki/Active_record) pattern. But also the graphical user interface was not left without improvements. And as usual there are many bug-fixes, module improvements and new modules (as announced in the previous release news).

Of course, migration from previous series is fully supported.

## Major changes in graphical user interface

- Management of model access and create/delete field access.  
The client is now aware of the model access which allows the disable buttons when the user doesn’t have access to it.  
It is also possible to manage the create/delete event on fields in addition to read/write.

- Dynamic size limit on the One2Many, Many2Many and Char.  
It is now possible to limit the size of those fields and the client will enforce it.

- Remove “Please wait” box. The popup was annoying because it make the client lost the focus.

- Paste in editable list view. It is possible to paste from a spreadsheet to update a set of rows.

## Major changes on the server side

- Allow to use Reference field in One2Many & Many2Many.  
In addition to the Many2One, the reverse field could be a Reference field.  
In the future, the link between Move and Shipments will be done like that instead of having 4 exclusive Many2One fields.

- All kind of buttons have been merge into one simple concept.

- [Active Record](http://en.wikipedia.org/wiki/Active_record): This is the result of refactoring work started 2 years ago.

- Allow to store the views in a XML file instead of the database. This supports the modification of a view without updating the database. A good speedup for designing views.

- A new kind of validation has been added the pre\_validation.

## Modules

### account

- The Trial Balance report displays now the start and end balance in addition to the debit and credit columns.
- Double-clicking on Balance Sheet opens accounts.
- The Account Chart doesn’t show cumulate Debit/Credit by default but only for the current period.
- The Aged Balance is computed over all fiscalyears.
- The Account Moves have been refactored to include an origin field which allows to easily link it to the master document. They have two number fields for draft and posted.

### account\_stock\_continental

- Updating cost price create automatically a stock accounting move.

### purchase

- The purchase manages negative quantities on lines, they will generate Return Shipments and Credit Note.

### stock

- A graph has been added showing the evolution in past and future of the stock level for a product per warehouse.

 ![product quantities per warehouse](https://discuss-cdn.tryton.org/uploads/default/original/2X/d/de94aece9dc213e43b9af0897eae9cb48309c867.png)

## New modules

- `stock_lot` defines lot of products.
- `stock_split` adds a wizard to split move.
- `account_fr` adds French account chart.
- `production` defines the basics for production management.
- `stock_supply_production` adds automatic supply mechanisms via production requests.

## Other changes graphical user interface

- Constant interpolation has been added to line graph.
- The group could have a readonly state.
- It is possible to define a time format different of the classic ‘%H:%M:%S’.

## Other changes on server side

- The `ModelSQL.default_sequence` has been removed. The sequence fields will no more increase indefinitely.
- The time format is validated, so it is possible to enforce the second to 0 for example.
- ` __tryton__.py` is replaced by `tryton.cfg`, a static file.
- It is possible to use tuple as Reference value. It is useful to construct dynamic domain on such field in `PYSON`.