Identify the version of the eBird Status and Trends Data Products that this version of the R package works with. Versions are defined by the year that all model estimates are made for. In addition, the release data and end date for access of this version of the data are provided. Note that after the given access end data you will no longer be able to download this version of the data and will be required to update the R package and transition to using a newer data version.
A list with three components:
version_year is the year the model
estimates are made for in this version of the data,
release_year is the
year this version of the data were released, and
access_end_date is the
last date that users will be able to download this version of the data.
ebirdst_version() #> $version_year #>  2021 #> #> $release_year #>  2022 #> #> $access_end_date #>  "2023-11-30" #>