Solana Contracts v1.6.0 (#1292)

agusaldasoro · web-flow · commit d0d81df31957 · 2025-11-03T13:24:59.000Z
* Allow zero rates and capacity in Solana Token Pools (#1290) * Bump version + add changelog in solana contracts * add comment * Bump Version * Remove target Folder
diff --git a/chains/solana/CHANGELOG.md b/chains/solana/CHANGELOG.md
@@ -0,0 +1,82 @@
+# Changelog - CCIP Solana Contracts
+
+This document describes the changes introduced in the different versions of the **Chainlink CCIP Solana programs**, located in [`chains/solana/contracts/programs`](https://github.com/smartcontractkit/chainlink-ccip/tree/main/chains/solana/contracts/programs).
+
+---
+
+## [Unreleased] (1.6.0)
+<!-- ### Added
+- (Placeholder for upcoming features) -->
+
+### Changed
+
+- [Token Pools] Allow setting rate limit with rate and capacity set to 0 [#1290](https://github.com/smartcontractkit/chainlink-ccip/pull/1290)
+
+<!-- ### Fixed
+- (Placeholder for bug fixes) -->
+
+---
+
+## [0.1.2]
+
+- Commit [`b96a80a69ad2`](https://github.com/smartcontractkit/chainlink-ccip/commit/b96a80a69ad2)
+- Git Tag: [solana-v0.1.2](https://github.com/smartcontractkit/chainlink-ccip/releases/tag/solana-v0.1.2)
+
+### Added
+
+- [Token Pools] Modify Rate Limit Admin by the owner of the State PDA of the Token Pool.
+
+---
+
+## [0.1.1]
+
+### Core Contracts & CCTP Token Pool
+
+    1. Commit [`7f8a0f403c3a`](https://github.com/smartcontractkit/chainlink-ccip/commit/7f8a0f403c3a)
+    1. Git Tag: [solana-v0.1.1-cctp](https://github.com/smartcontractkit/chainlink-ccip/releases/tag/solana-v0.1.1-cctp)
+
+#### Added
+
+- **Offramp**:
+
+    1. Buffer execution
+    1. Dynamic calculation of accounts
+
+- **Router**:
+
+    1. Updated message routing to support the extended flow with new token pools.
+    1. Support for tokens with extensions
+
+- **CCTP Token Pool**:
+
+    1. New **Token Pool for CCTP (Circle Cross-Chain Transfer Protocol)**.
+
+### Lock and Release + Burn and Mint Token Pools
+
+    1. Commit: [`ee587a6c0562`](https://github.com/smartcontractkit/chainlink-ccip/commit/ee587a6c0562)
+    1. Git Tag: [solana-v0.1.1](https://github.com/smartcontractkit/chainlink-ccip/releases/tag/solana-v0.1.1)
+
+#### Added
+
+1. Added **multisig support** when minting tokens. Tokens that have a multisig as mint authority now are able to be mint in the token pool.
+1. Added a method to modify mint authority from the Signer PDA to the token multisig with validations
+1. Introduced **self-served onboarding** a toggle for the global admin to configure if token pool self served is enabled or not.
+
+---
+
+## [0.1.0]
+
+- Commit [`be8d09930aaa`](https://github.com/smartcontractkit/chainlink-ccip/commit/be8d09930aaa)
+- Git Tag: [solana-v0.1.0](https://github.com/smartcontractkit/chainlink-ccip/releases/tag/solana-v0.1.0)
+
+### Initial Release
+
+This version represents the **first implementation of CCIP on Solana**.
+
+### Added
+
+- **Programs included** with the basic CCIP functionality on Solana:
+  1. **Router**: orchestrates cross-chain message routing, includes the OnRamp (messages from Solana to any).
+  1. **OffRamp**: manages receiving messages in Solana (any to Solana) and processes token price updates.
+  1. **Fee Quoter**: message validation and fee calculations
+  1. **Token Pools**: base contracts for token custody and transfers.
diff --git a/chains/solana/contracts/Cargo.lock b/chains/solana/contracts/Cargo.lock
diff --git a/chains/solana/contracts/programs/base-token-pool/Cargo.toml b/chains/solana/contracts/programs/base-token-pool/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "base-token-pool"
-version = "0.1.1"
+version = "1.6.0"
 description = "Created with Anchor"
 edition = "2021"
 
diff --git a/chains/solana/contracts/programs/base-token-pool/src/rate_limiter.rs b/chains/solana/contracts/programs/base-token-pool/src/rate_limiter.rs
@@ -54,6 +54,7 @@ impl RateLimitTokenBucket {
 
         if self.tokens < request_tokens {
             let rate = self.cfg.rate;
+            require_neq!(rate, 0, CcipTokenPoolError::RLRateLimitReached);
             // Wait required until the bucket is refilled enough to accept this value, round up to next higher second
             // Consume is not guaranteed to succeed after wait time passes if there is competing traffic.
             // This acts as a lower bound of wait time.
@@ -106,7 +107,7 @@ impl RateLimitTokenBucket {
 fn validate_token_bucket_config(cfg: &RateLimitConfig) -> Result<()> {
     if cfg.enabled {
         require!(
-            cfg.rate < cfg.capacity && cfg.rate != 0,
+            cfg.rate <= cfg.capacity, // allow setting rate and capacity to 0
             CcipTokenPoolError::RLInvalidRateLimitRate
         );
     } else {
diff --git a/chains/solana/contracts/programs/burnmint-token-pool/Cargo.toml b/chains/solana/contracts/programs/burnmint-token-pool/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "burnmint-token-pool"
-version = "0.1.2"
+version = "1.6.0"
 description = "Created with Anchor"
 edition = "2021"
 
@@ -20,7 +20,7 @@ anchor-lang = { version = "0.29.0", features = ["init-if-needed"] }
 anchor-spl = "0.29.0"
 solana-program = "1.17.25" # pin solana to 1.17
 spl-math = { version = "0.2.0", features = [ "no-entrypoint" ] }
-base-token-pool = { version = "0.1.1", path = "../base-token-pool/", features = ["no-entrypoint"] }
+base-token-pool = { version = "1.6.0", path = "../base-token-pool/", features = ["no-entrypoint"] }
 rmn_remote = {path = "../rmn-remote", features = ["cpi"]}
 ccip_common = {path = "../ccip-common"}
 
diff --git a/chains/solana/contracts/programs/cctp-token-pool/Cargo.toml b/chains/solana/contracts/programs/cctp-token-pool/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cctp-token-pool"
-version = "0.1.1"
+version = "1.6.0"
 description = "USDC Token Pool for CCIP utilizing CCTP"
 edition = "2021"
 
@@ -18,7 +18,7 @@ default = []
 [dependencies]
 anchor-lang = { version = "0.29.0", features = ["init-if-needed"] }
 anchor-spl = "0.29.0"
-base-token-pool = { version = "0.1.1", path = "../base-token-pool/", features = ["no-entrypoint"] }
+base-token-pool = { version = "1.6.0", path = "../base-token-pool/", features = ["no-entrypoint"] }
 ccip_common = {path = "../ccip-common"}
 solana-program = "1.17.25"
 
diff --git a/chains/solana/contracts/programs/lockrelease-token-pool/Cargo.toml b/chains/solana/contracts/programs/lockrelease-token-pool/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lockrelease-token-pool"
-version = "0.1.2"
+version = "1.6.0"
 description = "Created with Anchor"
 edition = "2021"
 
@@ -20,7 +20,7 @@ anchor-lang = { version = "0.29.0", features = ["init-if-needed"] }
 anchor-spl = "0.29.0"
 solana-program = "1.17.25" # pin solana to 1.17
 spl-math = { version = "0.2.0", features = [ "no-entrypoint" ] }
-base-token-pool = { version = "0.1.1", path = "../base-token-pool/", features = ["no-entrypoint"] }
+base-token-pool = { version = "1.6.0", path = "../base-token-pool/", features = ["no-entrypoint"] }
 rmn_remote = {path = "../rmn-remote", features = ["cpi"]}
 ccip_common = {path = "../ccip-common"}
 
diff --git a/chains/solana/contracts/programs/test-token-pool/Cargo.toml b/chains/solana/contracts/programs/test-token-pool/Cargo.toml
@@ -20,9 +20,9 @@ anchor-lang = { version = "0.29.0", features = ["init-if-needed"] }
 anchor-spl = "0.29.0"
 solana-program = "1.17.25" # pin solana to 1.17
 spl-math = { version = "0.2.0", features = [ "no-entrypoint" ] }
-base-token-pool = { version = "0.1.1", path = "../base-token-pool/", features = ["no-entrypoint"] }
-burnmint-token-pool = { version = "0.1.1", path = "../burnmint-token-pool", features = ["no-entrypoint"] }
-lockrelease-token-pool = { version = "0.1.1", path = "../lockrelease-token-pool", features = ["no-entrypoint"] }
+base-token-pool = { version = "1.6.0", path = "../base-token-pool/", features = ["no-entrypoint"] }
+burnmint-token-pool = { version = "1.6.0", path = "../burnmint-token-pool", features = ["no-entrypoint"] }
+lockrelease-token-pool = { version = "1.6.0", path = "../lockrelease-token-pool", features = ["no-entrypoint"] }
 rmn_remote = {path = "../rmn-remote", features = ["cpi"]}
 ccip_common = {path = "../ccip-common"}
 
diff --git a/chains/solana/contracts/target/idl/base_token_pool.json b/chains/solana/contracts/target/idl/base_token_pool.json
@@ -1,5 +1,5 @@
 {
-  "version": "0.1.1",
+  "version": "1.6.0",
   "name": "base_token_pool",
   "instructions": [],
   "types": [
diff --git a/chains/solana/contracts/target/idl/burnmint_token_pool.json b/chains/solana/contracts/target/idl/burnmint_token_pool.json
@@ -1,5 +1,5 @@
 {
-  "version": "0.1.2",
+  "version": "1.6.0",
   "name": "burnmint_token_pool",
   "instructions": [
     {
diff --git a/chains/solana/contracts/target/idl/cctp_token_pool.json b/chains/solana/contracts/target/idl/cctp_token_pool.json
@@ -1,5 +1,5 @@
 {
-  "version": "0.1.1",
+  "version": "1.6.0",
   "name": "cctp_token_pool",
   "instructions": [
     {
diff --git a/chains/solana/contracts/target/idl/lockrelease_token_pool.json b/chains/solana/contracts/target/idl/lockrelease_token_pool.json
@@ -1,5 +1,5 @@
 {
-  "version": "0.1.2",
+  "version": "1.6.0",
   "name": "lockrelease_token_pool",
   "instructions": [
     {
diff --git a/chains/solana/contracts/target/types/base_token_pool.ts b/chains/solana/contracts/target/types/base_token_pool.ts
@@ -1,5 +1,5 @@
 export type BaseTokenPool = {
-  "version": "0.1.1",
+  "version": "1.6.0",
   "name": "base_token_pool",
   "instructions": [],
   "types": [
@@ -869,7 +869,7 @@ export type BaseTokenPool = {
 };
 
 export const IDL: BaseTokenPool = {
-  "version": "0.1.1",
+  "version": "1.6.0",
   "name": "base_token_pool",
   "instructions": [],
   "types": [
diff --git a/chains/solana/contracts/target/types/burnmint_token_pool.ts b/chains/solana/contracts/target/types/burnmint_token_pool.ts
@@ -1,5 +1,5 @@
 export type BurnmintTokenPool = {
-  "version": "0.1.2",
+  "version": "1.6.0",
   "name": "burnmint_token_pool",
   "instructions": [
     {
@@ -947,7 +947,7 @@ export type BurnmintTokenPool = {
 };
 
 export const IDL: BurnmintTokenPool = {
-  "version": "0.1.2",
+  "version": "1.6.0",
   "name": "burnmint_token_pool",
   "instructions": [
     {
diff --git a/chains/solana/contracts/target/types/cctp_token_pool.ts b/chains/solana/contracts/target/types/cctp_token_pool.ts
@@ -1,5 +1,5 @@
 export type CctpTokenPool = {
-  "version": "0.1.1",
+  "version": "1.6.0",
   "name": "cctp_token_pool",
   "instructions": [
     {
@@ -1388,7 +1388,7 @@ export type CctpTokenPool = {
 };
 
 export const IDL: CctpTokenPool = {
-  "version": "0.1.1",
+  "version": "1.6.0",
   "name": "cctp_token_pool",
   "instructions": [
     {
diff --git a/chains/solana/contracts/target/types/lockrelease_token_pool.ts b/chains/solana/contracts/target/types/lockrelease_token_pool.ts
@@ -1,5 +1,5 @@
 export type LockreleaseTokenPool = {
-  "version": "0.1.2",
+  "version": "1.6.0",
   "name": "lockrelease_token_pool",
   "instructions": [
     {
@@ -983,7 +983,7 @@ export type LockreleaseTokenPool = {
 };
 
 export const IDL: LockreleaseTokenPool = {
-  "version": "0.1.2",
+  "version": "1.6.0",
   "name": "lockrelease_token_pool",
   "instructions": [
     {
diff --git a/chains/solana/contracts/tests/ccip/tokenpool_test.go b/chains/solana/contracts/tests/ccip/tokenpool_test.go
@@ -430,15 +430,6 @@ func TestTokenPool(t *testing.T) {
 								c      test_token_pool.RateLimitConfig
 								errStr string
 							}{
-								{
-									name: "enabled-zero-rate",
-									c: test_token_pool.RateLimitConfig{
-										Enabled:  true,
-										Capacity: 10,
-										Rate:     0,
-									},
-									errStr: "invalid rate limit rate",
-								},
 								{
 									name: "enabled-rate-larger-than-capacity",
 									c: test_token_pool.RateLimitConfig{
@@ -490,15 +481,14 @@ func TestTokenPool(t *testing.T) {
 							).ValidateAndBuild()
 							require.NoError(t, err)
 
-							// test new rate limit admin
 							ixRatesValid, err := test_token_pool.NewSetChainRateLimitInstruction(config.EvmChainSelector, p.Mint,
 								test_token_pool.RateLimitConfig{
 									Enabled:  true,
 									Capacity: amount,
 									Rate:     1,
 								}, test_token_pool.RateLimitConfig{
-									Enabled:  false,
-									Capacity: 0,
+									Enabled:  true,
+									Capacity: 10,
 									Rate:     0,
 								}, poolConfig, p.Chain[config.EvmChainSelector], user.PublicKey(), solana.SystemProgramID).ValidateAndBuild()
 							require.NoError(t, err)

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,5 @@`
`1`	`1`	`{`
`2`		`- "version": "0.1.1",`
	`2`	`+ "version": "1.6.0",`
`3`	`3`	`"name": "base_token_pool",`
`4`	`4`	`"instructions": [],`
`5`	`5`	`"types": [`
Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,5 @@`
`1`	`1`	`{`
`2`		`- "version": "0.1.2",`
	`2`	`+ "version": "1.6.0",`
`3`	`3`	`"name": "burnmint_token_pool",`
`4`	`4`	`"instructions": [`
`5`	`5`	`{`