The old hledger-chart tool, deprecated in 2011.
Things that were scheduled for 1.0 but didn't make it. They're still hoping.
The old hledger-vty tool, deprecated in 2011.
Dependencies, version constraints, packaging..
Anything performance-related (run time, memory usage, disk space..)
Period expressions, used in queries, periodic rules, etc.
Phones, tablets, IOS, Android, all of those.
The nextcloud.com content/app-hosting platform.
The Sandstorm.io web app hosting platform.
Filtering options, query arguments..
A backwards step, indicating a weakness in our QA. We don't like these.
Cleanliness/consistency/developer bug. Only perfectionists care.
Minor to moderate usability/doc bug, reasonably easy to avoid or tolerate.
New user experience or installability bug. A potential user could fail to get started.
Major usability/doc bug, crash, or any regression.
Any loss of user's data, privacy, security, or trust.