What's Changed
* Small aesthetic update to Ray benchmark RTD by copybara-service in https://github.com/google/vizier/pull/914
* Add a lot of tracing trackers. by copybara-service in https://github.com/google/vizier/pull/913
* Fix broken `pytest_ray` installation by copybara-service in https://github.com/google/vizier/pull/918
* Add multi-objective acquisitions and integrate them into GPBandit. by copybara-service in https://github.com/google/vizier/pull/909
* Add profiling around seed trial generation to help debug slow runs. by copybara-service in https://github.com/google/vizier/pull/925
* Meta learning designer: 1) multi-metric trial support, 2) updated default schedules, 3) additional testing and documentation. by copybara-service in https://github.com/google/vizier/pull/933
* Add counter metrics with metadata. by copybara-service in https://github.com/google/vizier/pull/931
* Use QuasiRandomDesigner in EagleStrategy. by copybara-service in https://github.com/google/vizier/pull/943
* Clean up & bugfix for random rotation matrix generation. by copybara-service in https://github.com/google/vizier/pull/941
* Remove redundant logging from Eagle designer for expediting benchmarking jobs / convergence tests. by copybara-service in https://github.com/google/vizier/pull/946
**Full Changelog**: https://github.com/google/vizier/compare/v0.1.11...v0.1.12