[FLINK-9867] Extend release notes for Flink 1.6

• Type: Improvement
• Status: Resolved
• Priority: Blocker
• Resolution: Done
• Affects Version/s: 1.6.0
• Fix Version/s: 1.6.0
• Component/s: Documentation
• Labels: pull-request-available
• Assignee: Till Rohrmann
• Reporter: Till Rohrmann
• Created: 16/Jul/18 21:13
• Updated: 08/Aug/18 16:25
• Resolved: 08/Aug/18 16:25

Description

We should extend the release notes under /docs/release-notes/flink-1.6.md.

Issue Links

• links to: GitHub Pull Request #6525
• links to: GitHub Pull Request #6526