diff --git a/client/asset/driver.go b/client/asset/driver.go
index 7c00b6be3b..25824f9835 100644
--- a/client/asset/driver.go
+++ b/client/asset/driver.go
@@ -82,7 +82,7 @@ func Register(assetID uint32, driver Driver) {
 // RegisterToken should be called to register tokens. If no nets are specified
 // the token will be registered for all networks. The user must invoke
 // SetNetwork to enable net-based filtering of package function output.
-func RegisterToken(tokenID uint32, token *dex.Token, walletDef *WalletDefinition, nets ...dex.Network) {
+func RegisterToken(tokenID uint32, token *dex.Token, walletDef *WalletDefinition, supportedVersions []uint32, nets ...dex.Network) {
 	driversMtx.Lock()
 	defer driversMtx.Unlock()
 	if _, exists := tokens[tokenID]; exists {
@@ -94,8 +94,9 @@ func RegisterToken(tokenID uint32, token *dex.Token, walletDef *WalletDefinition
 	}
 	tokens[tokenID] = &nettedToken{
 		Token: &Token{
-			Token:      token,
-			Definition: walletDef,
+			Token:             token,
+			Definition:        walletDef,
+			SupportedVersions: supportedVersions,
 		},
 		nets: nets,
 	}
diff --git a/client/asset/eth/eth.go b/client/asset/eth/eth.go
index f85921064d..7f81774a89 100644
--- a/client/asset/eth/eth.go
+++ b/client/asset/eth/eth.go
@@ -53,7 +53,7 @@ func registerToken(tokenID uint32, desc string, nets ...dex.Network) {
 	asset.RegisterToken(tokenID, token.Token, &asset.WalletDefinition{
 		Type:        "token",
 		Description: desc,
-	}, nets...)
+	}, SupportedTokenVersions, nets...)
 }
 
 func init() {
@@ -138,6 +138,8 @@ var (
 		},
 	}
 
+	SupportedTokenVersions = []uint32{0} // Server versions that we can handle.
+
 	chainIDs = map[dex.Network]int64{
 		dex.Mainnet: 1,
 		dex.Testnet: 5,  // Görli
@@ -492,11 +494,9 @@ func (w *ETHWallet) Info() *asset.WalletInfo {
 // Info returns basic information about the wallet and asset.
 func (w *TokenWallet) Info() *asset.WalletInfo {
 	var bestVer uint32
-	var vers []uint32
 	netToken := w.token.NetTokens[w.net]
 	if netToken != nil {
 		for ver := range netToken.SwapContracts {
-			vers = append(vers, ver)
 			if ver > bestVer {
 				bestVer = ver
 			}
@@ -506,7 +506,7 @@ func (w *TokenWallet) Info() *asset.WalletInfo {
 	return &asset.WalletInfo{
 		Name:              w.token.Name,
 		Version:           bestVer,
-		SupportedVersions: vers,
+		SupportedVersions: SupportedTokenVersions,
 		UnitInfo:          w.token.UnitInfo,
 		MaxSwapsInTx:      w.maxSwapsInTx,
 		MaxRedeemsInTx:    w.maxRedeemsInTx,
diff --git a/client/asset/interface.go b/client/asset/interface.go
index 5c1627f864..09fa854275 100644
--- a/client/asset/interface.go
+++ b/client/asset/interface.go
@@ -198,7 +198,8 @@ type WalletDefinition struct {
 // Token combines the generic dex.Token with a WalletDefinition.
 type Token struct {
 	*dex.Token
-	Definition *WalletDefinition `json:"definition"`
+	Definition        *WalletDefinition `json:"definition"`
+	SupportedVersions []uint32          `json:"supportedVersions"`
 }
 
 // WalletInfo is auxiliary information about an ExchangeWallet.
diff --git a/client/webserver/site/src/js/registry.ts b/client/webserver/site/src/js/registry.ts
index 5d9f102627..adb508ae2b 100644
--- a/client/webserver/site/src/js/registry.ts
+++ b/client/webserver/site/src/js/registry.ts
@@ -167,6 +167,7 @@ export interface Token {
   name: string
   unitInfo: UnitInfo
   definition: WalletDefinition
+  supportedVersions: number[]
 }
 
 export interface WalletState {
@@ -189,7 +190,8 @@ export interface WalletState {
 
 export interface WalletInfo {
   name: string
-  version: number
+  version: number // deprecated
+  versions: number[] // new field for supported server versions
   availablewallets: WalletDefinition[]
   emptyidx: number
   unitinfo: UnitInfo