A minor change was made to Google+ with the removal of the hashtags that normally appeared on the top right hand corner of Google+ posts.

Ana Hoffman was the first to spot the change.

The hashtags were auto-generated by Google based on the content shared.  They were never really promoted on Google+ and because they were auto-generated and not set by users, they were mostly forgotten and ignored by users.

Facebook was another social media platform that tried promoting hashtags, but their push fell flat as well.  But hashtags are still alive and well on Twitter as well as to a lesser extend on Instagram.

You can still do hashtag searches on Google+ and they still suggest additional hashtags to search for.

You can also still add hashtags to any content you add, but Google will no longer autogenerate hashtags to display on the top right of the posts.