Alex Chi Z.

Needs control plane code owner review. Could @NanoBjorn please take a look? Thanks!

Last week: iterator APIs almost done, mock WAL record. This week: test with test_gc_feedback, resolve PR comments.

Updated plan this week: improve the streaming read interface, test with `test_gc_feedback`.

Last week: B-tree iterator (but inefficient), fixed some bugs, passed test_gc_feedback. This week: continue with the plan and merge iterator-related pull requests.

Last week: merged iterator-related pull requests, brainstorm + design doc on branch compaction https://www.notion.so/neondatabase/Bottom-Most-Compaction-and-Garbage-Collection-9474c713ddee4b6586c264a6df1e044b This week: implement retain LSN PoC, merge k-merge iterator pull request

This week: retain_lsn pull request ready, oncall so not planning anything this week. Probably will add more tests on k-merge + branching to test the case we have mixed delta+image...

going to resolve the comments + merge https://github.com/neondatabase/neon/pull/8608 and run dry-run mode testing in staging this week

running in staging, will try larger tenents. goal for Sep: run on production tenants. secondary goal: collect aux v1 garbage.

the implementation mostly complete and I'm closing it in favor of https://github.com/neondatabase/neon/issues/9114