1.In which version SPELL CORRECTION and AUTO COMPLETE features are introduced…?
2.what are the parameters to be mentioned in config file to implement the spell correction and auto complete…?
These features were introduced long time ago.
You could read more at our documentation Autocomplete and Spell correction or try these interactive course at Play manticore
For example Did you mean feature or Autocomplete feature.
Would it be possible to implement autocomplete and spell correction correction in 3.4.2 version
it should work there