Explanation

The assets-controllers package has been updated to remove scoped state on TokensController, TokenListController, and AccountTrackerController. Previously, these controllers contained fields in their state that were scoped to the current chain, while others were keyed by chain ID. The former approach is now deprecated and has been removed in favor of querying state by chain ID.

Changes Implemented:

• Deprecated and removed state fields that were scoped to the current chain.
• Ensured all clients use per-chain variants of these state fields.
• Removed logic in controllers that updated the deprecated fields.

Removed State Fields and Their Replacements:

• TokensController:
  • Removed: tokens, ignoredTokens, detectedTokens
  • Use instead: allTokens, allIgnoredTokens, allDetectedTokens
• AccountTrackerController:
  • Removed: accounts
  • Use instead: accountsByChain
• TokenListController:
  • Removed: tokenList
  • Use instead: tokensChainsCache

References

• Fixes: [Assets Controllers] Remove state scoped to the current chain #5166

Changelog

@metamask/assets-controllers

• REMOVED: Deprecated state fields scoped to the current chain.
• CHANGED: Updated TokensController, TokenListController, and AccountTrackerController to use per-chain state variants.

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've highlighted breaking changes using the "BREAKING" category above as appropriate
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes