v1.12.0

Features

• expand scalar roots and bracketing (4eaf902)
• add gradient and Jacobian checkers (e308ce7)
• add Slsqp and bounded finite differences (2e9ed82)
• add opt-in state capabilities (a731623)
• add configurable forcing to Steihaug (aa7e842)
• add shared point and first-order progress states (5e5504c)
• add owned checkpoint and result extraction (a055377)

Bug Fixes

• reject directional probes that need projection (2ea1c47)
• separate SLSQP feasibility from convergence (9d2b170)
• preserve numeric casts for TerminationReason (79b4f61)

Performance Improvements

• streamline SLSQP small kernels (6113e89)
• reuse SLSQP workspaces (1ccfd49)
• reduce SLSQP temporary allocations (a8c166c)
• reuse gradient descent line-search evaluations (a58dc97)