feat: store undo/redo for future edits, like nvim and vscode do

[kuvaldini]

Description

$subj

any plans? or may be it is already implemented but needs to be edabled in config?

[Andriamanitra]

Micro already keeps undo/redo stacks. Or if you mean storing them to disk so they persist even if you close micro you will want to look at help options, specifically saveundo.