fix: upgrade sozo to v1.8.6 for Blake2s CASM class hash support#13
Merged
Slymeofthemonth merged 2 commits intomainfrom Mar 4, 2026
Merged
fix: upgrade sozo to v1.8.6 for Blake2s CASM class hash support#13Slymeofthemonth merged 2 commits intomainfrom
Slymeofthemonth merged 2 commits intomainfrom
Conversation
Sepolia now uses Blake2s for CASM class hashing (since Starknet 0.13.4). sozo v1.8.0 used Pedersen hashing, causing CASM compiled class hash mismatch on deployment. sozo v1.8.4+ (PR dojoengine/dojo#3377) adds Blake2s support, auto-detecting the correct hash algorithm from the RPC. Changes: - .tool-versions: sozo 1.8.0 → 1.8.6 - Dockerfile.build: dojo image v1.8.0 → v1.8.6 - deployment.md: updated toolchain reference The dojo cairo library dependency stays at v1.8.0 (unchanged API). scarb/cairo 2.13.1 remain compatible. Closes #1
The previous Dockerfile referenced ghcr.io/dojoengine/dojo:v1.8.6 which doesn't exist. This builds from ubuntu:24.04 and installs: - scarb 2.13.1 (matching dojo v1.8.0 core deps) - sozo 1.8.6 (latest, with updated Sierra->CASM compiler) - Rust toolchain for plugin compilation sozo build verified passing in this container. Added docker-build.sh helper script. Refs #1
This was referenced Mar 4, 2026
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Problem
Sepolia deployment (
sozo migrate --profile sepolia) fails with CASM compiled class hash mismatch. The Sierra→CASM compiler in sozo 1.7.1 produces different hashes than Sepolia expects.Fix
Verified
sozo buildpasses in the new containerCloses #1