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Remove deprecated chains: Holesky; Mantle; X Layer; Fantom; Mumbai#940

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round2-deprecations
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Remove deprecated chains: Holesky; Mantle; X Layer; Fantom; Mumbai#940
aadam-10 wants to merge 10 commits into
mainfrom
round2-deprecations

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@aadam-10 aadam-10 commented Oct 28, 2025

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Remove a number of chains from the TS SDK where guardians are no longer observing messages.

Based on https://github.com/wormhole-foundation/wormhole-sdk-ts/pull/875/files

  • Ethereum Holesky; Polygon Mumbai: Officially deprecated
  • Fantom, X Layer: Deprecated by Wormhole
  • Mantle: Abandonware

Also deleted SUPPORT_MATRIX.md as it's unmaintained and outdated.

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aadam-10 marked this pull request as draft October 28, 2025 13:16
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aadam-10 marked this pull request as ready for review October 28, 2025 14:04
@aadam-10 aadam-10 changed the title Remove chains deprecated in round 2 Remove deprecated chains: Holesky; Mantle; X Layer; Fantom Oct 28, 2025
@aadam-10 aadam-10 changed the title Remove deprecated chains: Holesky; Mantle; X Layer; Fantom Remove deprecated chains: Holesky; Mantle; X Layer; Fantom; Mumbai Oct 29, 2025
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