As far as I know, the char panel isn’t back yet. What I did to get a euro character into Blender is:
Make a text file with an euro character, charset UTF-8
Open the file into Blender’s text editor
In the text editor’s menu: Edit -> Text To 3D Object -> One Object
To make the text show up in the 3D view, go to object data in the properties panel. In the font tab, under Regular, load a ttf font that supports unicode characters.
This thread answered my hanging question about at least one way to edit a text object, but I’m wondering, is there some simpler way, after creating a text object from the Add menu to get rid of the default “Text”. Until I discovered I could generate an object from the Text Editor, I was rather lost, since adding the contents of a text file was appending my new text after the default text.