[ARROW-9231] [Format] Increment MetadataVersion from V4 to V5

• Type: Improvement
• Status: Closed
• Priority: Blocker
• Resolution: Duplicate
• Fix Version/s: 1.0.0
• Component/s: Format
• External issue URL: https://github.com/apache/arrow/issues/25328
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 26/Jun/20 14:27
• Updated: 11/Jan/23 08:05
• Resolved: 03/Jul/20 00:01

Description

We are making enough non-forward-compatible format changes that we should increase the format version to V5 while continuing to accept V4 (because the changes we've made are backward compatible) and where relevant implementing a V4-compatibility mode that disables features where there are changes between 0.17.x and 1.x