## BAT v4.0.4 [Diff since v4.0.3](https://github.com/bat/BAT.jl/compare/v4.0.3...v4.0.4)

## BAT v4.0.3 [Diff since v4.0.2](https://github.com/bat/BAT.jl/compare/v4.0.2...v4.0.3)

## BAT v4.0.2 [Diff since v4.0.1](https://github.com/bat/BAT.jl/compare/v4.0.1...v4.0.2) **Merged pull requests:** - Refactor mcmc_update_z_position!!() (#487) (@Micki-D)

## BAT v4.0.0 [Diff since v3.4.0](https://github.com/bat/BAT.jl/compare/v3.4.0...v4.0.0) ### Breaking changes Several algorithms have changed their names, but also their role: * `MCMCSampling` has become `TransformedMCMC`. * `MetropolisHastings` has become `RandomWalk`. It's parameters have changed (no deprecation for the parameter changes). Tuning and sample weighting scheme selection have moved to `TransformedMCMC`. * `PriorToGaussian` has become `PriorToNormal`. Partial deprecations are available for the above, so old code should run more or less unchanged (with deprecation warnings). Also: * `AdaptiveMHTuning` has become `AdaptiveAffineTuning`, but is now used as a parameter for `TransformedMCMC` (formerly `MCMCSampling`) instead of `RandomWalk` (formerly `MetropolisHastings`). * `MCMCNoOpTuning` has become `NoMCMCTransformTuning`. * The arguments of `HamiltonianMC` have changed. * `MCMCTuningAlgorithm` has been replaced by `MCMCTransformTuning`. * The `trafo` parameter of algorithms has been renamed to `pretransform`, the `trafo` field in algorithm results has been renamed to `f_pretransform`. * `bat_report` has been deprecated in favor of `LazyReports.lazyreport` (drop-in compatible). ### New features * Sampling, integration and mode-finding algorithms now generate a return value `result = ..., evaluated::EvaluatedMeasure = ..., ...)` if their target is a probability measure/distribution. * The new `RAMTuning` is now the default (transform) tuning algorithm for `RandomWalk` (formerly `MetropolisHastings`). It typically results in a much faster burn-in process than `AdaptiveAffineTuning` (formerly `AdaptiveMHTuning`, the previous default). * MCMC Sampling handles parameter scale and correlation adaptivity via via tunable space transformations instead of tuning covariance matrices in proposal distributions. * MCMC tuning has been split into proposal tuning (algorithms of type `MCMCProposalTuning`) and transform turning (algorithms of type `MCMCTransformTuning`). Proposal tuning has now a much more limited role and often may be `NoMCMCProposalTuning()` (e.g. for `RandomWalk`). * Added `MGVISampling` for Metric Gaussian Variational Inference. **Merged pull requests:** - Add PolarShellDistribution (#475) (@oschulz) - CompatHelper: bump compat for AdvancedHMC in [weakdeps] to 0.8, (keep existing compat) (#480) (@github-actions[bot]) - Advanced HMC compat bump compatibility check (#481) (@Micki-D) - Improve dist transport implementation, support AffineDistribution (#482) (@oschulz)

## BAT v3.4.0 [Diff since v3.3.5](https://github.com/bat/BAT.jl/compare/v3.3.5...v3.4.0) **Merged pull requests:** - Adjust for API changes in AdvancedHMC.jl (#470) (@Micki-D) - Unified sample transformation (#471) (@oschulz) - CompatHelper: bump compat for ForwardDiff to 1, (keep existing compat) (#472) (@github-actions[bot]) - Enable ensemble based sampling for MCMC algorithms (#473) (@Micki-D) - Replace bat_report by LazyReports (#474) (@oschulz) - Fix transform_samples (#476) (@oschulz) - Indent bat_transform !!! note (#478) (@kalmarek)

## BAT v3.3.5 [Diff since v3.3.4](https://github.com/bat/BAT.jl/compare/v3.3.4...v3.3.5) **Merged pull requests:** - Hmc proposed sample handling refactor (#468) (@Micki-D)

## BAT v3.3.4 [Diff since v3.3.3](https://github.com/bat/BAT.jl/compare/v3.3.3...v3.3.4) **Merged pull requests:** - Manually set lower bounds on direct deps (#466) (@fhagemann) - Refactor z position update in transformed MCMC (#467) (@Micki-D)

## BAT v3.3.3 [Diff since v3.3.2](https://github.com/bat/BAT.jl/compare/v3.3.2...v3.3.3) **Merged pull requests:** - Include sample_z in _cleanup_samples() (#462) (@Micki-D) - CompatHelper: bump compat for StructArrays to 0.7, (keep existing compat) (#463) (@github-actions[bot]) - Bump codecov/codecov-action from 4 to 5 (#464) (@dependabot[bot])