- Update to version 1.29
* Fix: the new Julian calendar feature was raising an
exception in the calendar methods like
`skyfield.timelib.Time.tt_calendar()` if the time
object was in fact an array of times. #450
* Fix: trying to iterate over a time object would raise an
exception if the time was created through
`~skyfield.timelib.Timescale.ut1()`.
- Version 1.28
* Broken URL: Because the VizieR archive apparently decided
to uncompress their copy of the hip_main.dat.gz Hipparcos
catalog file, the old URL now returns a 404 error. As an
emergency fix, this version of Skyfield switches to their
uncompressed hip_main.dat. Hopefully they don’t compress
it again and break the new URL! A more permanent solution
is discussed at: #454
* To unblock this release, removed a few deprecated pre-1.0
experiments from April 2015 in skyfield.hipparcos and
skyfield.named_stars that broke because the Hipparcos
catalog is no longer compressed; hopefully no one was
using them.
* In a sweeping internal change, the
`~skyfield.timelib.Timescale` and
`~skyfield.timelib.Time` objects now offer support
for the Julian calendar that’s used by historians for
dates preceding the adoption of the Gregorian calendar in
1582. See choice of calendars if you want to turn on
Julian dates in your application. #450