1.17.2

Released: November 14, 2025

feature

• [feature] [operations] Added Operations.implementation_for.replace parameter to
  Operations.implementation_for(), allowing replacement of existing
  operation implementations. This allows for existing operations such as
  CreateTableOp to be extended directly. Pull request courtesy
  justanothercatgirl.

  References: #1750

bug

• [bug] [mssql] Fixed issue in SQL Server dialect where the DROP that's automatically
  emitted for existing default constraints during an ALTER COLUMN needs to
  take place before not just the modification of the column's default, but
  also before the column's type is changed.

  References: #1744