This is a minor update. Please see v14.0's change log for the full list of changes since 13.x.
Ignore 14.7. That never happened.

Additions

• Add time zone to timestamps
• Support for 1.12 advancement messages

Fixes

• AccountLinkManager NPE when players join too early
• API cancellation checks
• Attachment URLs not properly being sent
• JDA proxySelector issues