GitHub Announces Changes To Code Search Indexing

GitHub Code Search will now index only repositories with recent activity.

Recently, GitHub announced that now, Code Search will only index repos that had recent activity within the last year. 

Here, recent activity means that the repository has had a commit or has shown up in a search result.  In case a repository does not carry any activity for an entire year, that repo will be purged from the Code Search index.

Source: GitHub

GitHub said that this update will enable the most relevant content to surface in the code search index. This will also make code search queries fast for all customers.