Changes in version 1.23.1 (2023-06-03)
+ Fix cooler2sparse function when a cool file has only a single chromosome. 
Thanks to @junjunlab, @agata-sm, https://github.com/dozmorovlab/HiCcompare/issues/28
+ Update cool file handling in the vignette.

Changes in version 1.20.1 (2022-11-28)
+ Use more secure HTTPS URL for Aiden Lab (PR #12 by @paulmenzel)

Changes in version 1.11.1 (2020-08-14)
+ Add CITATION, also to README.md file
+ Update NEWS
+ Update DESCRIPTION
  o Add Mikhail Dozmorov as Maintainer
  o Add URL and BugReports fields
+ Revert breaking changes
  o KRnormalization.R, line 75, Z = rk/v; rho_km1 = t(rk) %*% Z;
  o hic_compare.R, line 99, A.min <- ceiling(mean(A_q10))

Changes in version 1.11.0 (2020-02-11)
+ New method to read in .cool files, cooler2bedpe()
+ New method for comparison, hic_compare()
