Up until the last release, all the gallery items were included in part 2. However, if this trend was to continue the game would end up with no space in the 2gb APK for any new content, so the dev made the decision to cut out the replays and only include the ones from the specific days in the part. As it is, the content has grown large enough that the next update will be in a part 3, as the first two are filled up now.