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1,489 commits this week Dec 30, 2025 - Jan 06, 2026
CIP-0068 | Add rationale for version 4 nested map format
Add comprehensive rationale explaining the motivation for introducing
the CIP-0025-compatible nested map format in version 4:

- Addresses minUTxO cost barriers for large NFT collections
- Enables metadata consolidation to reduce ADA locking (10-20% savings)
- Improves migration path from CIP-0025 to CIP-0068
- Preserves backward compatibility through strict optionality

This rationale explains the economic and practical benefits that led
to the version 4 design decision.
CIP-0068 | Address review feedback on v4 metadata format
Fix terminology and CDDL syntax issues identified in review:

- Remove "721-ERC-style" terminology; clarify reference to CIP-0025's
  nested map structure vs individual metadata fields
- Fix CDDL syntax: use proper bounded_bytes for "721", policy_id, and
  asset_name keys (matching CIP-0025 version 2 conventions)
- Remove __RESERVE_KEYWORD_721_V4__ marker; presence of "721" key is
  sufficient for format detection
- Update retrieval steps to detect format by checking for "721" key
- Clarify "backwards-compatible" in changelog: version 4 adds nested
  map format as additional option, compatible with v1-3 direct format
- Rename "721-style" example label to "nested map format"
- Propagate all fixes consistently across 222, 333, and 444 standards