StarkNet has released Cairo 1.0-alpha.2 version

ChainCatcher news, StarkNet announced the release of Cairo 1.0-alpha.2, which includes new features such as: dictionaries, events in contracts, mapping storage variables, trait support, type inference, and methods.

Currently, the team is working to make Cairo 1.0 fully compatible with the previous version of Cairo and developing StarkNet v0.11.0 to support writing contracts in Cairo 1.0. (source link)