1# **936050 < 930032**23### **pallet-collator-selection:**45* Added use of Collator Selection pallet, along with Session, Authorship, and Identity:6 * Aura authorities become Collator Selection's invulnerables7 * Session keys are put, and the first session is started89# **930032 < 924010**1011### **pallet-common:**1213* Removed the previous migration of:14 * if the storage version is below 1, all collections from storage **CollectionById** of struct **Collection** version 1 to version 2, consisting of:15 * displacing _offchain_schema, variable_on_chain_schema, const_on_chain_schema, schema_version_ into _properties_16 * displacing _acccess, mint_mode_ into _permissions.access, permissions.mint_mode_17 * adding _external_collection_ flag18* Added unconditional bump of the storage version to 119* Replaced returned weight `0` with `Weight::zero()`2021### **pallet-nonfungible:**2223* Removed the previous migration of:24 * if the storage version is below 1, all items from storage **TokenData** of struct **ItemData** version 1 to version 2, consisting of:25 * displacing _const_data, variable_data_ into _properties_26 * adding permission for the collection admin to set the immutable __old_constData_ property27* Added unconditional bump of the storage version to 128* Replaced returned weight `0` with `Weight::zero()`2930### **pallet-refungible:**3132* Removed the previous migration of:33 * if the storage version is below 1, all items from storage **TokenData** of struct **ItemData** version 1 to version 2, consisting of:34 * removing _variable_data_35* Added:36 * if the storage version is below 2, cleaning of all storage of now-redundant **TokenData**37 * unconditional bump of the storage version to 238* Replaced returned weight `0` with `Weight::zero()`3940### **pallet-unique:**4142* Removed the previous migration of:43 * unconditional cleaning of all storage of **VariableMetaDataBasket** (cache for sponosoring setting deprecated variable metadata)