This release reintroduces ProbabilityOfImprovement (638) and Pareto diverse sample method (643), which were temporarily removed in 0.13.2.
_Note that the minimum supported TensorFlow version has been raised to 2.5._
**New features**
Batch Expected Improvement (641, 653)
Portfolio method for Batch BO (651, 659, 663)
Multifidelity modeling (621, 654)
Explicit constraints (656, 660)
**Improvements**
Allow scipy optimizer to be changed (655)
Allow arbitrary dataset/model tags (668) — note that this may break type checking for existing code
Slight improvements to synthetic objective functgions (671)
**Build changes**
Support latest gpflow and gpflux (649)
Support more recent tox versions (669)
**Full Changelog**: https://github.com/secondmind-labs/trieste/compare/v0.13.1...v0.13.3