Should the ToolboxesConfig.config file have assemblies for b

The tools section of the ToolboxesConfig.config file contains both 4.2 and 4.3 assemblies in the tool section.  The website has been running for a month like this without any problems.  However, I have not been able to upgrade to 4.4. I'm wondering if I'm having upgrade problems because the config file did not upgrade completely when going to 4.3.

Below is the section with mixed versions:

                    <tools>
                        <add enabled="True" type="Telerik.Sitefinity.Modules.News.Web.UI.NewsView, Telerik.Sitefinity, Version=4.2.1733.0, Culture=neutral, PublicKeyToken=b28c218413bdf563" title="NewsViewTitle" description="NewsViewDescription" resourceClassId="NewsResources" cssClass="sfNewsViewIcn" moduleName="News" visibilityMode="None" name="NewsView" />
                        <add enabled="True" type="Telerik.Sitefinity.Modules.Blogs.Web.UI.BlogPostView, Telerik.Sitefinity, Version=4.2.1733.0, Culture=neutral, PublicKeyToken=b28c218413bdf563" title="BlogPostsViewTitle" description="BlogPostsViewDescription" resourceClassId="BlogResources" cssClass="sfBlogsViewIcn" moduleName="Blogs" visibilityMode="None" name="BlogPostsView" />
                        <add enabled="True" type="Telerik.Sitefinity.Modules.Events.Web.UI.EventsView, Telerik.Sitefinity, Version=4.2.1733.0, Culture=neutral, PublicKeyToken=b28c218413bdf563" title="EventsViewTitle" description="EventsViewDescription" resourceClassId="EventsResources" cssClass="sfEventsViewIcn" moduleName="Events" visibilityMode="None" name="EventsView" />
                        <add enabled="True" type="Telerik.Sitefinity.Modules.Libraries.Web.UI.Videos.MediaPlayerControl, Telerik.Sitefinity, Version=4.2.1733.0, Culture=neutral, PublicKeyToken=b28c218413bdf563" title="MediaPlayerControlTitle" description="MediaPlayerControlDescription" resourceClassId="PageResources" cssClass="sfVideoIcn" visibilityMode="None" name="MediaPlayerControl" />
                        <add enabled="True" type="Telerik.Sitefinity.Modules.Libraries.Web.UI.Videos.VideosView, Telerik.Sitefinity, Version=4.2.1733.0, Culture=neutral, PublicKeyToken=b28c218413bdf563" title="VideosViewTitle" description="VideosViewDescription" resourceClassId="LibrariesResources" cssClass="sfVideoListIcn" moduleName="Libraries" visibilityMode="None" name="VideosView" />
                        <add enabled="True" type="Telerik.Sitefinity.Modules.Libraries.Web.UI.Documents.DocumentLink, Telerik.Sitefinity, Version=4.2.1733.0, Culture=neutral, PublicKeyToken=b28c218413bdf563" title="DocumentLinkControlTitle" description="DocumentLinkControlDescription" resourceClassId="PageResources" cssClass="sfDownloadLinkIcn" visibilityMode="None" name="DocumentLinkControl" />
                        <add enabled="True" type="Telerik.Sitefinity.Modules.Libraries.Web.UI.Documents.DownloadListView, Telerik.Sitefinity, Version=4.2.1733.0, Culture=neutral, PublicKeyToken=b28c218413bdf563" title="DownloadListViewTitle" description="DownloadListViewDescription" resourceClassId="PageResources" cssClass="sfDownloadListIcn" visibilityMode="None" name="DownloadListView" />
                        <add enabled="True" type="Telerik.Sitefinity.Web.UI.PublicControls.FeedEmbedControl, Telerik.Sitefinity, Version=4.2.1733.0, Culture=neutral, PublicKeyToken=b28c218413bdf563" title="FeedEmbedControlTitle" description="FeedEmbedControlDescription" resourceClassId="PageResources" cssClass="sfFeedsIcn" visibilityMode="None" name="FeedEmbedControl" />
                        <add enabled="True" type="FormsNotification.FormsControlCustom, FormsNotification" title="Forms Control" description="FormsControlDescription" cssClass="sfFormsIcn" visibilityMode="None" name="FormsControlCustom" />
                        <add enabled="True" type="Telerik.Sitefinity.Modules.Lists.Web.UI.ListView, Telerik.Sitefinity, Version=4.2.1733.0, Culture=neutral, PublicKeyToken=b28c218413bdf563" title="ListItemsViewTitle" description="ListItemsViewDescription" resourceClassId="ListsResources" cssClass="sfListitemsIcn" moduleName="Lists" visibilityMode="None" name="ListItemsView" />
                        <add enabled="True" type="Telerik.Sitefinity.Modules.Blogs.Web.UI.BlogsListControl, Telerik.Sitefinity, Version=4.3.1885.0, Culture=neutral, PublicKeyToken=b28c218413bdf563" title="BlogsList" description="BlogsListDescription" resourceClassId="BlogResources" cssClass="sfBlogsListViewIcn" moduleName="Blogs" visibilityMode="None" name="BlogsListControl" />
                    </tools>

Hello David,

Your toolbox.config shouldn't be causing any upgrade problems. Otherwise you would have gotten an error stating that. What exactly happens when you try to upgrade your website? You can open a support ticket,   send us your config files and database and we will upgrade your project here, if this is convenient for you .

All the best,
Jen Peleva
the Telerik team