This is a major release. It should continue to run older queries without modification. New features (like `MetaData`) are only partially supported by the CMS backend for now.
New Features
Interface Features
* Local running is now supported, as long as `docker` is installed. For ATLAS containers, a local datavolume is also mounted so calibration files do not have to be repeatedly downloaded.
Code Generation Features
* `MetaData` to completely define an object model for events, including all types. This can be sent over the wire meaning when there are changes to the underlying container this is running on, the code generator no longer has to be updated.
* One can now inject job options into ATLAS jobs via MetaData (supporting, for example, object corrections)
* Strings are now first-class citizens and can be returned from queries
The PR's
* Support MetaData by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/177
* Add JobOptions Injection by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/180
* Link Libraries attached to collections by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/183
* Fixes the event info bug by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/184
* Enable Local Dataset Running by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/185
* MetaData Improvements by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/186
* Fix First scoping bug by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/187
* Merge Common Body MD by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/188
* Support bool constants in the code by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/189
* Code Injection Improvements by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/190
* Strings Are First Class Citizen by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/192
* Mount a docker volume as cache by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/194
* Build working with new ast packages by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/195
* Improvements for Production by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/196
**Full Changelog**: https://github.com/iris-hep/func_adl_xAOD/compare/1.4.1...2.0