Migrating from Conan 1.x to Conan 2.x involves updating recipe syntax, adopting a new cross-building model, and leveraging modern integration tools. While the migration process for recipes is generally straightforward, it requires understanding key API improvements and CLI command removals. Core Migration Areas
# Conan 1 profile [settings] os=Macos os.version=10.15 compiler=apple-clang compiler.version=12.0
Your command will change slightly. You now often need to specify the build type upfront or via the profile. conan 2 migration
Here are several angles for content regarding Conan 2 migration, tailored for different formats (blog posts, conference talks, or team guides).
In Conan 1, you could get away with a simple conanfile.txt . In Conan 2, you essentially must use conanfile.py . The logic for generators and imports has moved into the Python API. Migrating from Conan 1
# Conan 2 def layout(self): cmake_layout(self) # standard src/build pattern
Convert your conanfile.txt to a Python class. You now often need to specify the build
Ensure you have a clean environment. Do not mix Conan 1 and 2 installations in the same path.