MVVM fails - Compiled Bindings are now the default? A11P6

Describe the bug My application employs MVVM and data bindings. Previously, under 10.18, following axaml View snippet worked fine:

    <views:CodeTextBox Grid.Row="0"
        Name="PlainTextBox"
        Classes="mono"
        IsReadOnly="True"
        IsVisible="{Binding IsPlainTextViewable}">
    </views:CodeTextBox>

Note the IsVisible="{Binding IsPlainTextViewable}"> .

Now, under 11P6, it fails to compile with the error:

... PreviewPane.axaml(17,13,17,13): Avalonia error AVLN:0004: Cannot parse a compiled binding without an explicit x:DataType directive to give a starting data type for bindings.

However, if I goto the root and add the line:

x:CompileBindings="False"

to the following:

<UserControl xmlns="https://github.com/avaloniaui"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:views="clr-namespace:AvantGarde.Views"
    mc:Ignorable="d" d:DesignWidth="400" d:DesignHeight="300"

    x:CompileBindings="False"

    x:Class="AvantGarde.Views.PreviewPane">

Then everything works fine.

THIS SUGGESTS THAT COMPILED BINDINGS IS NOW THE DEFAULT?

But the documentation states: “Compiled bindings are not enabled by default.”

See: https://docs.avaloniaui.net/docs/data-binding/compiledbindings

Is this the case? Has it changed? I can find no reference to it in the list of version 11 breaking changes?

Or could I be missing something here? Is there some other global “compiled bindings setting”?

Or is this a bug?

Expected behavior Compiled bindings are not default.

Screenshots If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Fedora 37
• Version 11 Preview 6

Additional context Add any other context about the problem here.

[rabbitism]

IRCC you can disable it in csproj with <AvaloniaUseCompiledBindingsByDefault>false</AvaloniaUseCompiledBindingsByDefault>

[timunie]

Cast it like in c#

IsVisible="{Binding $parent.((vm:MainViewModel)DataContext).IsXamlViewable}"