We need to use either lastBuildDate or pubDate on our feed to pull data from an existing feed and save when we do that. The rules for that are below. It sounds like we want to default to pubDate on save based on how our tool currently works.
In case of pubDate, the channel is published manually or in fixed period. In case of lastBuildDate, the channel is built automatically upon new article being added on the website, adding it as new item.
We need to use either lastBuildDate or pubDate on our feed to pull data from an existing feed and save when we do that. The rules for that are below. It sounds like we want to default to pubDate on save based on how our tool currently works.
Source: https://stackoverflow.com/questions/1698076/what-is-the-difference-between-pubdate-and-lastbuilddate-in-rss