When deploying contracts, you should use the latest released version of Solidity. Apart from exceptional cases, only the latest version receives security fixes.
source
No floating pragma
To prevent contracts from being accidentally deployed using an older compiler with unfixed bugs.
Motivation
Security patches
No floating pragma
To prevent contracts from being accidentally deployed using an older compiler with unfixed bugs.
Related
https://github.com/kleros/kleros-v2/issues/572 https://github.com/kleros/vea/issues/107