AztecProtocol/aztec-packages v4.1.3

on GitHub

4.1.3 (2026-04-02)

This is a mandatory upgrade. It fixes a critical bug where an L1 reorg could cause the archiver to enter an infinite crash
loop, requiring manual intervention to recover.

Node

Bug Fixes

• Fixed a crash loop where an L1 reorg moving a checkpoint to a different L1 block caused the archiver to re-discover it and
  fail with InitialCheckpointNumberNotSequentialError. The archiver now gracefully handles duplicate checkpoints by accepting
  them if the archive root matches and updating the L1 metadata.
  (#22252) (b5a9e97) (7fee115)

Other

Bug Fixes

• Expanded compatibility test coverage to run on all v4-related branches (v4-next, backport-to-v4-staging,
  backport-to-v4-next), preventing compatibility breaks from going undetected — a gap that previously allowed a block header
  shape change to brick staging nodes. (#22149) (d8fa4c4)