replicate/cog v0.20.0

v0.20.0

Repository: replicate/cog

Tag: v0.20.0

Published: 2026-05-19T23:00:03Z

Prerelease: no

Release notes:

New features

• `cog run` command. The cog predict command has been renamed to cog run with full backward compatibility. cog predict still works as an alias. (#3015)
• Model refs for `cog push` and weights commands. You can now reference models by name (e.g., r8.im/user/model) instead of full image URLs when pushing or managing weights. (#3018)
• Multi-source weights and HTTPS weight sources. Weights can now be fetched from multiple sources, including direct HTTPS URLs. (#3008)
• Opaque annotations in schema generation. Predictor inputs can use the new Opaque annotation to exclude fields from the generated schema. (#3001)

Improvements

• Runtime schema generation fully removed. The legacy runtime Python schema generation path has been completely removed. Cog exclusively uses static schema generation, making builds faster and more reliable. (#3003)
• Centralized build state and cleaner Docker context. Cog now stores build state in a dedicated .cog/ directory that is automatically filtered from the Docker build context. (#3000)
• Support durable base-image build context. Base image builds now support a durable build context for better caching and reliability. (#3004)
• Support uv-managed Python installs in generated Dockerfiles. Generated Dockerfiles now properly handle Python installations managed by uv. (#2999)

Bug fixes

• Pushing a model with a version tag now emits a clean URL. The Replicate model URL printed after cog push no longer includes the image tag (e.g., :latest), preventing 404 errors when users click the link. (#3020)
• Prefer latest torch patch when resolving unpatched versions. When resolving PyTorch compatibility, Cog now correctly selects the latest available patch version for unpatched version specs. (#3009)
• Deterministic compatibility matrix output. Compatibility matrices are now sorted for consistent, deterministic output. (#3006)