Hi

I am using MacOS 10.15,

sourcetree  version  4.1.2

mercurial 5.2

when either creating a new repository or open an existing one

I receive the following error (it seems that I cannot attach a screenshot)

hg status' failed with code 255:'abort: repository requires features
unknown to this Mercurial: sparserevlog!

(see https://mercurial-scm.org/wiki/MissingRequirement for more information)