While specific patch notes for dōjin titles are often only in Japanese on the developer's Circle page, common updates for this version include: Improved support for Windows 10/11.
“Sibling living” suggests a story or simulation about cohabiting siblings, and the version/repack info implies it’s a modified or repackaged release. sibling living ver240609 rj01207277 repack
A "repack" means the game files have been compressed to save space. Here is the standard procedure: While specific patch notes for dōjin titles are