# ULTRAKILL Patch 17b2 Changelog

- Product: ULTRAKILL (https://whatsnew.fyi/product/ultrakill)
- Vendor: Arsi "Hakita" Patala
- Date: 2026-03-04
- Original notes: https://store.steampowered.com/news/app/1229490/view/541132417437532228
- Permalink: https://whatsnew.fyi/product/ultrakill/releases/2026-03-04-patch-17b2-changelog

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Default Piercer splitcoin now ignores the same target on subsequent splits
- **removed** — Most "oops" OOB preventers from 8-3's final section
- **fixed** — Mirror Reaper no longer lacks damage resistance to sawblades
- **changed** — Mirror Reaper toxic projectiles now stop tracking the player after 2 seconds
- **fixed** — 8-3 Dimensional Cave getting stuck on the wrong side when the player has cleared out the cave side and then clears out the flesh side right as the portal reaches its destination
- **fixed** — 8-3 elevator to secret softlocking the player if they use a call button on the second floor
- **fixed** — Two pillars in 7-3 now have the correct texture

-  Fixed default Piercer splitcoin not ignoring the same target on subsequent splits

-  Removed most "oops" OOB preventers from 8-3's final section

-  Fixed Mirror Reaper not having damage resistance to sawblades

-  Mirror Reaper toxic projectiles now stop tracking the player after 2 seconds

-  (Hopefully) fixed 8-3 Dimensional Cave getting stuck on the wrong side when the player has cleared out the cave side and then clears out the flesh side right as the portal reaches its destination

-  Fixed 8-3 elevator to secret softlocking the player if they use a call button on the second floor

-  Fixed two pillars in 7-3 not having the correct texture