Migrating to v0.8.0

v0.8.0 removes historical redirect modules from the active package. The practitioner API remains unchanged: SimpleCGE, StandardCGE, CamCGE, IFPRICGE, CGE, and PyCGE are still available from cge_core.

Import-path changes

Before v0.8	v0.8 canonical location
cge_core.api	cge_core.workflow or top-level cge_core
cge_core.engine	top-level cge_core.PyCGE
cge_core.modern_engine	internal; use the public workflow
cge_core.solvers	cge_core.solver
cge_core.samtools	cge_core.sam
cge_core.ifpri.*	cge_core.models.ifpri.*
cge_core.authoring.*	cge_core.experimental.authoring.*
cge_core.spec.*	cge_core.experimental.spec.*
cge_core.examples.*_model_def	cge_core.models.simple/standard
cam.cam_model_def	cge_core.models.camcge.model

The inherited PyCGE implementation now lives at cge_core._pycge; ordinary advanced code should continue importing PyCGE from the package root.

Notebook course

The active notebooks/ directory now contains exactly seven notebooks: 01 through 06, plus 90_internals. Redirect notebooks from earlier releases are intentionally absent. Their historical contents remain available through Git tags.

Why the break

CGE-Core is still pre-1.0. v0.8 uses that window to establish one namespace, one implementation location, and one course before those historical aliases become long-term maintenance obligations.