[TYPO3-english] how to enable/install new ts editor with syntax highlighting

[Stefanos Karasavvidis]

I've just upgraded to 4.3, and wanted to check out the new TS editor
with code highlighting etc. But it seems that I'm missing something,
because my template setup field hasn't changed at all, and shows up as a
simple text area.

In the extension repository, there is no extension named "t3editor", and
in my installed extensions, I see "t3editor" version 1.0.0

Can please someone point out how to get this new editor?

Thanks

Stefanos