(Updated June 30, 2025)

Wormhole extends grace period for Terra Classic, Terra, Karura and Acala.

Previously, it was communicated that Wormhole would stop services on a number of chains this summer, including the ones mentioned above. On June 6th, Terra Classic (columbus-5), Karura, Acala, XPLA and Oasis have been disconnected from Wormhole. Originally, Terra (phoenix-1) was planned for disconnection on June 26th, alongside the Cosmos tab on portalbridge.com.

The Wormhole Guardians have decided to temporarily restore messaging on Terra Classic, Karura and Acala, and grant an extension for Terra and the Cosmos tab. Until the 14th July 2025 date, the following services will be available on portalbridge.com to allow more users to exit the affected chains:

• Token transfers to/from Terra Classic
• Token transfers to/from Karura
• Token transfers to/from Acala
• Token transfers to/from Terra
• IBC token transfers to/from Injective, Osmosis, Kujira, Evmos

After 14th July 2025, the following will no longer be possible:

• Any message originating from Terra Classic (including token transfers)
• Any message originating from Karura (including token transfers)
• Any message originating from Acala (including token transfers)
• Any message originating from Terra (including token transfers)

After 14th July 2025, the following will still be possible, assuming a third party hosts a frontend and sets up IBC relaying (as described in the previous blog post):

• IBC token transfers to/from Injective, Osmosis, Kujira, Evmos

After the 14th July 2025 date, the following will still be possible on portalbridge.com:

• Non-IBC token transfers to/from Injective on the legacy tools

Additional notes:

• Due to not every guardian restoring their individual connections to the affected chains, token transfers may experience delays.
• We recommend to only use this window of opportunity to bridge out of the affected chains, but not use it to bridge tokens in.

Original Post — Feb 11, 2025

The Guardian Network, which independently governs the security and sustainability of Wormhole’s cross-chain messaging infrastructure, has made the decision to adjust support for several blockchain networks on the Wormhole platform. This decision follows the comprehensive analysis of network metrics, including transaction volumes, resource utilization, and long-term sustainability factors.

Affected Networks

The following chains will undergo network support changes:

Full Deprecation

• Terra
• Terra2
• Oasis
• Aurora
• Acala
• Karura
• Xpla

Frontend Transition

• Injective
• Osmosis
• Evmos
• Kujira

Implementation & Timeline

Full Network Deprecation: Summer 2025

Fully deprecating these networks involves the following 2 steps:

1. For each of the affected chains, the Guardian Network will disconnect their respective full nodes from Wormhole. This will, in effect, prevent Wormhole messages including token transfers from going out of the network. Due to the nature of how Wormhole works, inbound messages and token transfers will continue to be possible for as long as at least 13 out of the 19 Guardians that are currently registered on the Wormhole Core Contracts on these chains are able and willing to sign messages originating from foreign chains.
2. Portal (portalbridge.com) will delist the affected chains from the frontend.

No delisting or messaging cutoff will occur before the summer of 2025.

Frontend Transition: Summer 2025

Select Cosmos chains will transition from first-party frontend support and discontinue subsidized IBC relaying. This involves the following 2 steps:

1. Portal (portalbridge.com) will no longer host a frontend to facilitate token transfers to/from the affected chains.
2. The Wormhole Foundation will stop subsidizing IBC relaying between Wormhole Gateway and other Cosmos chains.

No changes (Portal delisting or IBC relayer cutoff) will occur before the summer of 2025.

Note that:

• The existing IBC connections between Wormhole Gateway and the affected chains will continue to be whitelisted.
• Wormhole Gateway will continue to operate as it currently does.
• Anyone can permissionlessly set up their frontend and IBC relaying solution to continue providing a place for token transfers for the affected chains (see Support and Resources).

Support and Resources

Third party frontends

The teams below have indicated that token transfers will continue to be available uninterrupted for these chain.

• Injective: https://bridge.injective.network/
• Osmosis: The team is working on the frontend solution.
• Evmos: https://store.evmos.org/portfolio

Permissionless IBC transfers

Given that Wormhole Gateway and the existing IBC channels will continue to operate as normal, anyone can set up their frontend solution to facilitate token transfers. To do so, there are 2 necessary steps:

1. Set up the frontend
2. Set up IBC relaying between Wormhole Gateway and the chain

Setting up the frontend

The easiest way is to use a version of the Wormhole Connect frontend widget (0.x.x) that has support for these chains. Please find instructions to set these up in the repository’s readme at the indicated commit height. You’re also free to fork the repository and modify Wormhole Connect according to your needs.

• NPM package: https://www.npmjs.com/package/@wormhole-foundation/wormhole-connect/v/0.3.21
• Release notes & commit height: https://github.com/wormhole-foundation/wormhole-connect/releases/tag/production%400.3.21

Alternatively, if you’d like to build your own frontend, this is the SDK being used by Wormhole Connect 0.x.x: https://www.npmjs.com/package/@certusone/wormhole-sdk/v/0.10.18

Setting up IBC relaying

If you don’t want to host your own IBC relaying infrastructure, we recommend getting in touch with one of the service providers to set them up for you. You’ll need the channel identifier between the Cosmos chain you want to set up IBC relaying for, and Wormhole Gateway (cosmos chain ID: wormchain)

The service provider the Wormhole Foundation recommends and used is CryptoCrew Validators: https://ccvalidators.com/

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