Evidence:Sourced from the official Z Route: Redemption Discord announcements channel (Z Admin posts). These particular posts did not include an explicit patch date, so they're grouped here rather than assigned a guessed date; they precede the April 22, 2026 update chronologically.
Several updates landed in this stretch before the team started including explicit dates in their announcement posts. Together they raised the block level cap to 204, added participation rewards to the Rookie Arena, and introduced Speedup-source shortcuts so players could see where to get more speedups directly from the build/research/training/healing screens.
A number of interface passes also went out in this window: store and mall art and copy were cleaned up, VIP privilege display was reorganized, hero skill icons and several Radar/Arena visual effects were refined, and duplicate low-quality Survivors began auto-converting into a new Survivor Token item instead of cluttering inventory. City Conquest’s capture-state coloring was adjusted for clarity, and the old Event Warrior Pass was renamed to the Hero Battle Pass. A long tail of smaller display and translation bugs (mail titles, button hitboxes, event-pack purchase confirmations) were fixed across these releases as well.
Condensed independent summary of several official Z Route: Redemption Discord announcements. Not a reproduction of the developer's changelog text — see the official Discord for the full original wording.