2.1.0

• Updated some gems.
• Made the test suite green again.

2.0.4

• Allowed periods in shortened names.

2.0.3

• Security updates.

2.0.2

• Moved QR codes icons to a new table column.
• Made a downloaded QR code image have an unique name.

2.0.1

• Applied security updates.
• Allowed to generate a QR code for each shortened URL.

2.0.0

• Upgraded Rails to 7.0.x.