coleifer/peewee 3.12.0 on GitHub

Bulk insert (insert_many() and insert_from()) will now return the row count instead of the last insert ID. If you are using Postgres, peewee will continue to return a cursor that provides an iterator over the newly-inserted primary-key values by default. This behavior is being retained by default for compatibility. Postgres users can simply specify an empty returning() call to disable the cursor and retrieve the rowcount instead.
Migration extension now supports altering a column's data-type, via the new alter_column_type() method.
Added Database.is_connection_usable() method, which attempts to look at the status of the underlying DB-API connection to determine whether the connection is usable.
Common table expressions include a materialized parameter, which can be used to control Postgres' optimization fencing around CTEs.
Added BloomFilter.from_buffer() method for populating a bloom-filter from the output of a previous call to the to_buffer() method.
Fixed APSW extension's commit() and rollback() methods to no-op if the database is in auto-commit mode.
Added generate_always= option to the IdentityField (defaults to False).