# 2026 v1.1

## Content

## DataCollection

**Breaking changes**

* Removed the `IsTrimmable` attribute from the .NET 6 target framework `DataCollection` `Win` and `WPF`. The attribute remains available in .NET 7 and later versions.

**Improvements**

* Added the `IsTrimmable` attribute to the following libraries:
    * AdoNet
    * Android
    * DataCollection
    * iOS
    * BindingList
    * EntityFrameworkCore
    * ScheduleCore
    * Serialization
    * SignalR.Client
    * SignalR.Server
    * Win
    * WinUI
    * WPF

**Bug Fixes**

* Fixed an issue where the `C1WrapDataCollection` constructor threw an exception when the source collection was `null`. (Jira: C1XAML-39756)
* Fixed an issue where resolving stub attributes caused runtime errors in .NET 6 applications. (Jira: C1XAML-39756)

## C1.DataConnector

**Bug Fixes**

* Fixed an issue where the `ESCAPE` clause behaved inconsistently with standard SQL syntax.
* Fixed an issue in `C1.AdoNet.Json` where using a derived column in the `ORDER BY` clause produced incorrect results. (Jira: C1-9659)

### C1.DataEngine

**Improvements**

* Updated the `C1.DataCollection` dependency to version `10.0.20261.6`.

## ScheduleCore

**Improvements**

* Added the `IsTrimmable` attribute.