# Katana Vanguard Balance Changelog

Every framedata change must list the patch, public test build signal, A/B
result, affected move, before/after values, and design rationale.

| Patch              | PTB Signal                           | A/B Result                  | Move                    | Before | After | Rationale                                                                                               |
| ------------------ | ------------------------------------ | --------------------------- | ----------------------- | ------ | ----- | ------------------------------------------------------------------------------------------------------- |
| `patch-2026.05.s1` | `ptb.s1.cross-up-kick.block-winrate` | `balance.s1.cross-up-kick`  | Cross-Up Kick startup   | 12f    | 14f   | Win-rate-on-block and hot/cold heatmaps showed the move converting too often from safe pressure.        |
| `patch-2026.05.s1` | `ptb.s1.heavy-launcher.pick-rate`    | `balance.s1.heavy-launcher` | Heavy Launcher recovery | 23f    | 25f   | Pick-rate and win-rate-on-hit exceeded the target band across Competitive and EsportsAspirant segments. |

## Review Gate

- Public before/after metrics are published under `V2/balance/public-results/`.
- Official forum and survey feedback are attached before patch signoff.
- Community-flagged regressions during PTB trigger patch hold until design, QA,
  and live-ops review the replay set.