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← Back to schema changes overview We are standardizing how Beacon Chain tables expose epoch and slot identifiers so they match our naming on newer networks (for example Hoodi) and are easier to use in joins and analytics. Last published: April 20, 2026

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What’s changing

New columns EPOCH_NUMBER and SLOT_NUMBER are available alongside the legacy EPOCH and SLOT columns on April 9, 2026. Values in EPOCH_NUMBER and SLOT_NUMBER match the same underlying data as EPOCH and SLOT before the drop.
May 23, 2026 — legacy columns removedOn May 23, 2026, we will drop the legacy identifiers:
  • EPOCH — removed from beacon.raw.validator_duties, beacon.raw.ideal_rewards, and beacon.raw.total_rewards
  • SLOT — removed from beacon.raw.validator_duties only
After that date, use EPOCH_NUMBER and SLOT_NUMBER only.

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Timeline

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What this means for you

  • Until May 23, 2026: Queries that use EPOCH or SLOT continue to work; migrate in parallel using EPOCH_NUMBER / SLOT_NUMBER.
  • From May 23, 2026: EPOCH and SLOT will no longer exist on these tables — you must use EPOCH_NUMBER and SLOT_NUMBER.
  • Recommended path: Prefer EPOCH_NUMBER and SLOT_NUMBER in all new or updated queries and dashboards, and complete rewrites of existing logic by May 21, 2026 (see Timeline).

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Suggested migration (at your pace)

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Questions or support

If you need help mapping queries or BI models to the new names, contact Allium Support or your usual account channel.