This is a bug-fix release, v0.10.0-beta2, built on top of the v0.10.0-beta version.

This update addresses a critical issue that could cause a span to "freeze." The problem occurred when a producer for a veBlop span was selected from a list that could include a validator who was no longer active in the current set (i.e., had zero power). This inconsistency between the selected producer and the active validator set would halt the span's progress.

The fix hardens the producer selection process by ensuring that any selected span producer is always an active member of the current validator set with positive power. This is enforced in two ways:

• Candidate selection is now filtered to only include positive-power members of the current validator set.
• A final check is performed during span creation to confirm the producer is valid before being committed, preventing an inconsistent producer from ever being serialized.

This is a consensus-relevant change that will be activated with the Ithaca hard fork. The behavior of the chain before the fork remains unchanged.