Language track progress and old versions translations

[Byron2016]

TRACK PROGRESS

Instructions for Contributing to translations said:

1.- Inside translations.react.dev where is "Track Progress" link or button?

2.- How do I know what is pending 3.- How do I know which English documentations files where changed from the las update and need to be translated?

OLD VERSIONS TRANSLATIONS

1.- How and where do I create a backup of the V18.3.1 translation? 2.- I need this discusion question to be answered Translation file versions.md and referencing previous translations