Many languages (mostly obscure) were de-supported due to the switch from GeSHi to Pygments for syntax highlighting (T85794).
Fallbacks have been re-introduced for many of these languages. Report any new useful fallback mappings here.
For de-supported languages that were being used on wikis, please contribute language lexers to Pygments or report them as missing at https://bitbucket.org/birkenfeld/pygments-main/issues?status=new&status=open .
Note GeSHi included support for some languages which were not used in Wikimedia, and even some which were not real languages, so please do not raise bugs for all languages in GeSHi.
The next release of Pygments will include support for the following GeSHi languages which are not present in Pygments 2.0:
Original bug report:
I have been told by syntaxhighlight-error-category that two languages are lost:
They are not mentioned by rESHG/SyntaxHighlight_GeSHi.lexers.php but mw:Extension:SyntaxHighlight GeSHi #Supported languages promise they will work and at least they are known upstream: