v0.9.1

ImplicitDifferentiation v0.9.1

Diff since v0.9.0

Merged pull requests:

• fix: provide initial value to iterative linear solver (#182) (@gdalle)
• chore: bump compat for KrylovKit to v0.10.0 (#184) (@gdalle)
• feat: add least-squares linear solver (#185) (@gdalle)

v0.9.0

ImplicitDifferentiation v0.9.0

Diff since v0.8.1

Breaking changes

• Switch to KrylovKit for linear solve
• Remove options from IterativeLinearSolver and OperatorRepresentation
• Remove preparation-related options from the ImplicitFunction constructor

Merged pull requests:

• test: use ChainRulesTestUtils (#175) (@gdalle)
• Revert "test: use ChainRulesTestUtils" (#177) (@gdalle)
• refactor!: split out preparation (#179) (@gdalle)
• revamp!: use KrylovKit for type flexibility (beyond Vector), split out preparation (#180) (@gdalle)
• fix: only factorize for direct linear solve (#181) (@gdalle)

v0.8.1

ImplicitDifferentiation v0.8.1

Diff since v0.8.0

Merged pull requests:

• fix: ignore input type in LinearOperator construction by default (#174) (@gdalle)

v0.8.0

ImplicitDifferentiation v0.8.0

Diff since v0.7.2

Breaking changes

• Renamed KrylovLinearSolver into IterativeLinearSolver
• Strengthened typing in iterative solve, which will make ComponentArrays error unless the OperatorRepresentation is switched from LinearOperators to LinearMaps
• Split the backend keyword to ImplicitFunction into backends (one for x and one for y)
• Activated strict mode with DifferentiationInterface to catch typing errors

Merged pull requests:

• Update TagBot (#168) (@gdalle)
• CompatHelper: bump compat for Krylov to 0.10, (keep existing compat) (#169) (@github-actions[bot])
• chore: bump version (#170) (@gdalle)
• fix!: revamp linear operator handling (#172) (@gdalle)
• test!: better tests (#173) (@gdalle)

v0.7.2

What's Changed

• Allow generic arrays, not just vectors by @gdalle in #167

Full Changelog: v0.7.1...v0.7.2

v0.7.1

What's Changed

• Update ForwardDiff.jl compat by @longemen3000 in #164
• Bump version by @gdalle in #165

New Contributors

• @longemen3000 made their first contribution in #164

Full Changelog: v0.7.0...v0.7.1

v0.7.0

What's Changed

• Complete revamp by @gdalle in #160
• Remove mention of (now unsupported) kwargs by @gdalle in #162
• Delete build directory by @gdalle in #163

Main breaking changes

• The forward function (now called solver) must return a byproduct z in all cases, which will usually be nothing. It used to be optional. For most users, adaptation will only require replacing forward(x) = y by forward(x) = (y, nothing).
• Support for keyword arguments has been removed.
• Forward rules for Enzyme have been dropped (temporarily).

Please refer to the API reference and FAQ for more details.

Main new features

• The ability to run preparation on the differentiation of conditions. This is useful e.g. to leverage a sparse backend and build Jacobian matrices instead of calling lazy pushforwards and pullbacks

Full Changelog: v0.6.3...v0.7.0

v0.6.3

What's Changed

• docs: fix typo by @gdalle in #158
• test: add runtime activity to enzyme by @gdalle in #159
• Remove wrong transpose by @gdalle in #161

Full Changelog: v0.6.2...v0.6.3

v0.6.2

What's Changed

• Adapt to new Enzyme and DifferentiationInterface by @gdalle in #156
• Make Krylov solver verbose and public by @gdalle in #157

Full Changelog: v0.6.1...v0.6.2

v0.6.1

What's Changed

• Fix Enzyme extension and add new broken test by @gdalle in #151

Full Changelog: v0.6.0...v0.6.1