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• Lance File Version 2.2

  This is a tracking issue to track the 2.2 version of the Lance file format.

  Due by January 1, 2026

  •1/14 issues closed
  7% complete13 open1 closed

• Merge insert ergonomics improvements

  Make merge insert more useful or easier to use.

  No due date

  •2/9 issues closed
  22% complete7 open2 closed

• Efficient merge_insert

  We are migrating the implementation of merge insert to be more efficient, particularly with memory. During the refactor, we are taking the implementation that manually manipulates streams and replacing with an implementation that uses DataFusion to generate and optimize the whole plan.

  No due date

  •4/10 issues closed
  40% complete6 open4 closed

• Top-level indices

  Support the experience of creating index while creating table, then adding data. Read more at: https://github.com/lancedb/lance/issues/3674

  No due date

  •1/5 issues closed
  20% complete4 open1 closed

• Conflict resolution

  Goal is to eliminate most cases where users can get avoidable commit conflicts. For example, users should be able to update or delete different rows in the same lance file. Or users should be able to run an update query and not have it fail because a background compaction job just ran.

  No due date

  •5/8 issues closed
  62% complete3 open5 closed

• Better error handling

  No due date

  •0/4 issues closed
  0% complete4 open0 closed

• Lance Papercuts

  Urgent bugs or other blockers to adoption we should consider fixing immediately.

  No due date

  •5/8 issues closed
  62% complete3 open5 closed