v2.2.4

This release fixes the difficulty-adjustment endpoint url.
All users are encouraged to upgrade.

v2.2.3

This release contains many fixes and improvements from the past few months.
All users are encouraged to upgrade.

New Features:

• Add difficulty adjustment method.
• Add block header method.

v2.2.2

2.2.2

v2.2.1

2.2.1 (#22)