stable vs. unstable releases / release model clarification

[gvegidy]

Recent releases of the clonezilla text-UI like version 5.4.4 are published in the "unstable" directory: https://free.nchc.org.tw/drbl-core/src/unstable/

The latest release in the "stable" directory is "clonezilla-3.35.2.tar.xz" from 2019.

Are the more recent releases not considered "stable" anymore or did the release model change since then and there are no more stable or unstable releases, but just new versions without this classification?

I'm asking this because this information is important for distribution packaging. For example Arch Linux currently ships this version 3.35.2, because it is the latest one marked "stable": https://archlinux.org/packages/community/any/clonezilla/ https://github.com/archlinux/svntogit-community/blob/packages/clonezilla/trunk/PKGBUILD This older version is missing many recent improvements and fixes.

I would appreciate if you could clarify this.

Maybe it would also be helpful to rename the directories at https://free.nchc.org.tw/drbl-core/src/ if there are no more stable/unstable releases.

Thank you.