This repository has two independent MSRVs, one for the standard library that is compiled into contracts (cosmwasm-std MSRV) and one for the virtual machine executing contracts (cosmwasm-vm MSRV). The other packages belong to one of the two:
| Crate | MSRV |
|---|---|
| cosmwasm-crypto | cosmwasm-std MSRV |
| cosmwasm-derive | cosmwasm-std MSRV |
| cosmwasm-schema | cosmwasm-std MSRV |
| cosmwasm-std | cosmwasm-std MSRV |
| cosmwasm-storage | cosmwasm-std MSRV |
| cosmwasm-vm | cosmwasm-vm MSRV |
The reason for this is that cosmwasm-std has a wider audience than cosmwasm-vm and we try to change the MSRV less frequently, allowing contract developers to pick their favourite compiler version without getting disrupted. Another reason is that cosmwasm-vm depends on Wasmer, which bump their MSRV frequently. Please note that as soon as you start using integration tests for contract development, you will depends on the cosmwasm-vm MSRV.
| Version | cosmwasm-std MSRV | cosmwasm-vm MSRV | Notes |
|---|---|---|---|
| 1.0.0 | 1.53.0 | 1.53.0 | Not strictly needed but prepares for Wasmer > 2 and let's us keep up with modern Rust |
| 0.14.0 | 1.51.0 | 1.51.0 | Added support for const generics |
| 0.13.2 | 1.47.0 | 1.48.0 | Through Wasmer 1.0.1 |
| 0.13.0 | 1.47.0 | 1.47.0 | |
| 0.11.0 | 1.45.2 | 1.45.2 |
cosmwasm-std MSRV
- It must always be at least one minor version behind latest stable. E.g. with stable Rust 1.33.3 it must not exceed 1.32.0.
- It can be bumped without a semver major release of the crates. However, a minor version bump is required.
cosmwasm-vm MSRV
- It can be bumped without a semver major release of the crate. However, a minor version bump is required.
- It is always higher or equal to cosmwasm-std MSRV because the VM depends on cosmwasm-std and related packages.