Storage-layout collision risk across upgrades

Jito's assessment for RD-F-142 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Solana Anchor programs use discriminators and explicit account layouts rather than EVM storage slots — less susceptible to slot-collision. Data account upgrades require careful migration. No storage layout collision incidents documented. Cannot fully assess without source diff analysis of upgrade versions.

Sources #

Docs
Anchor Framework DocumentationAnchor framework documentation: account discriminators and layout enforcementretrieved 2026-04-29

Methodology #

Determine whether the OZ upgrades-plugin or manual review flags a storage-layout collision risk between implementation versions.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol jito factor RD-F-142 score yellow collected_at 2026-04-29 15:50:23