[2.0] Remove old ibc-v1

CHANGELOG.md

@@ -29,8 +29,10 @@ and this project adheres to
 - cosmwasm-std: Make inner values of `CanonicalAddr` and `Binary` private and
   add constructor for `Binary`. ([#1876])
 - cosmwasm-vm: Make inner value of `Size` private and add constructor. ([#1876])
+- cosmwasm-std: Remove old IBC version and make v3 the default. ([#1875])
 
 [#1874]: https://github.com/CosmWasm/cosmwasm/pull/1874
+[#1875]: https://github.com/CosmWasm/cosmwasm/pull/1875
 [#1876]: https://github.com/CosmWasm/cosmwasm/pull/1876
 [#1878]: https://github.com/CosmWasm/cosmwasm/pull/1878
 [#1879]: https://github.com/CosmWasm/cosmwasm/pull/1879

MIGRATING.md

@@ -19,6 +19,10 @@ major releases of `cosmwasm`. Note that you can also view the
   # ...
   ```
 
+  If you were using cosmwasm-std's `ibc3` feature, you can remove it, as it is
+  the default now. Depending on your usage, you might have to enable the
+  `stargate` feature instead, since it was previously implied by `ibc3`.
+
 - `ContractInfoResponse::new` now takes all fields of the response as
   parameters:
 

contracts/ibc-reflect-send/src/ibc.rs

@@ -1,7 +1,8 @@
 use cosmwasm_std::{
-    entry_point, from_json, to_json_binary, DepsMut, Env, IbcBasicResponse, IbcChannelCloseMsg,
-    IbcChannelConnectMsg, IbcChannelOpenMsg, IbcMsg, IbcOrder, IbcPacketAckMsg,
-    IbcPacketReceiveMsg, IbcPacketTimeoutMsg, IbcReceiveResponse, Never, StdError, StdResult,
+    entry_point, from_json, to_json_binary, DepsMut, Env, Ibc3ChannelOpenResponse,
+    IbcBasicResponse, IbcChannelCloseMsg, IbcChannelConnectMsg, IbcChannelOpenMsg,
+    IbcChannelOpenResponse, IbcMsg, IbcOrder, IbcPacketAckMsg, IbcPacketReceiveMsg,
+    IbcPacketTimeoutMsg, IbcReceiveResponse, Never, StdError, StdResult,
 };
 
 use crate::ibc_msg::{
@@ -17,7 +18,11 @@ pub const PACKET_LIFETIME: u64 = 60 * 60;
 
 #[entry_point]
 /// enforces ordering and versioing constraints
-pub fn ibc_channel_open(_deps: DepsMut, _env: Env, msg: IbcChannelOpenMsg) -> StdResult<()> {
+pub fn ibc_channel_open(
+    _deps: DepsMut,
+    _env: Env,
+    msg: IbcChannelOpenMsg,
+) -> StdResult<IbcChannelOpenResponse> {
     let channel = msg.channel();
 
     if channel.order != IbcOrder::Ordered {
@@ -37,7 +42,9 @@ pub fn ibc_channel_open(_deps: DepsMut, _env: Env, msg: IbcChannelOpenMsg) -> St
         }
     }
 
-    Ok(())
+    Ok(Some(Ibc3ChannelOpenResponse {
+        version: IBC_APP_VERSION.to_string(),
+    }))
 }
 
 #[entry_point]

contracts/ibc-reflect/Cargo.toml

@@ -33,7 +33,7 @@ backtraces = ["cosmwasm-std/backtraces", "cosmwasm-vm/backtraces"]
 
 [dependencies]
 cosmwasm-schema = { path = "../../packages/schema" }
-cosmwasm-std = { path = "../../packages/std", features = ["iterator", "ibc3"] }
+cosmwasm-std = { path = "../../packages/std", features = ["iterator", "stargate"] }
 schemars = "0.8.3"
 serde = { version = "1.0.103", default-features = false, features = ["derive"] }
 

docs/USING_COSMWASM_STD.md

@@ -39,7 +39,6 @@ The libarary comes with the following features:
 | iterator     | x                  | Storage iterators                                                         |
 | abort        | x                  | A panic handler that aborts the contract execution with a helpful message |
 | stargate     |                    | Cosmos SDK 0.40+ features and IBC                                         |
-| ibc3         |                    | New fields added in IBC v3                                                |
 | staking      |                    | Access to the staking module                                              |
 | backtraces   |                    | Add backtraces to errors (for unit testing)                               |
 | cosmwasm_1_1 |                    | Features that require CosmWasm 1.1+ on the chain                          |

packages/go-gen/Cargo.toml

@@ -9,7 +9,7 @@ publish = false
 
 [dependencies]
 schemars = "0.8.3"
-cosmwasm-std = { path = "../std", version = "1.5.0", features = ["cosmwasm_1_4", "staking", "stargate", "ibc3"] }
+cosmwasm-std = { path = "../std", version = "1.5.0", features = ["cosmwasm_1_4", "staking", "stargate"] }
 cosmwasm-schema = { path = "../schema", version = "1.5.0" }
 anyhow = "1"
 Inflector = "0.11.4"

packages/std/Cargo.toml

@@ -9,7 +9,7 @@ license = "Apache-2.0"
 readme = "README.md"
 
 [package.metadata.docs.rs]
-features = ["abort", "stargate", "staking", "ibc3", "cosmwasm_1_4"]
+features = ["abort", "stargate", "staking", "cosmwasm_1_4"]
 
 [features]
 default = ["iterator", "abort"]
@@ -30,9 +30,6 @@ backtraces = []
 # stargate enables stargate-dependent messages and queries, like raw protobuf messages
 # as well as ibc-related functionality
 stargate = []
-# ibc3 extends ibc messages with ibc-v3 only features. This should only be enabled on contracts
-# that require these types. Without this, they get the smaller ibc-v1 API.
-ibc3 = ["stargate"]
 # This feature makes `BankQuery::Supply` available for the contract to call, but requires
 # the host blockchain to run CosmWasm `1.1.0` or higher.
 cosmwasm_1_1 = []

packages/std/src/exports.rs

@@ -15,10 +15,10 @@ use serde::de::DeserializeOwned;
 use crate::deps::OwnedDeps;
 #[cfg(feature = "stargate")]
 use crate::ibc::{
-    IbcBasicResponse, IbcChannelCloseMsg, IbcChannelConnectMsg, IbcChannelOpenMsg,
-    IbcChannelOpenResponse, IbcPacketAckMsg, IbcPacketReceiveMsg, IbcPacketTimeoutMsg,
-    IbcReceiveResponse,
+    IbcBasicResponse, IbcChannelCloseMsg, IbcChannelConnectMsg, IbcPacketAckMsg,
+    IbcPacketReceiveMsg, IbcPacketTimeoutMsg, IbcReceiveResponse,
 };
+use crate::ibc::{IbcChannelOpenMsg, IbcChannelOpenResponse};
 use crate::imports::{ExternalApi, ExternalQuerier, ExternalStorage};
 use crate::memory::{alloc, consume_region, release_buffer, Region};
 #[cfg(feature = "abort")]
@@ -529,7 +529,6 @@ where
     query_fn(deps.as_ref(), env, msg).into()
 }
 
-#[cfg(feature = "stargate")]
 fn _do_ibc_channel_open<Q, E>(
     contract_fn: &dyn Fn(DepsMut<Q>, Env, IbcChannelOpenMsg) -> Result<IbcChannelOpenResponse, E>,
     env_ptr: *mut Region,

packages/std/src/ibc.rs

@@ -5,7 +5,6 @@ use core::cmp::{Ord, Ordering, PartialOrd};
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 
-#[cfg(feature = "ibc3")]
 use crate::addresses::Addr;
 use crate::binary::Binary;
 use crate::coin::Coin;
@@ -299,11 +298,9 @@ impl From<IbcChannelOpenMsg> for IbcChannel {
     }
 }
 
-/// Note that this serializes as "null".
-#[cfg(not(feature = "ibc3"))]
-pub type IbcChannelOpenResponse = ();
-/// This serializes either as "null" or a JSON object.
-#[cfg(feature = "ibc3")]
+/// This serializes either as `null` or a JSON object.
+/// Within the response, a channel version can be specified.
+/// If `null` is provided instead, the incoming channel version is accepted.
 pub type IbcChannelOpenResponse = Option<Ibc3ChannelOpenResponse>;
 
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq, JsonSchema)]
@@ -405,17 +402,10 @@ impl From<IbcChannelCloseMsg> for IbcChannel {
 #[non_exhaustive]
 pub struct IbcPacketReceiveMsg {
     pub packet: IbcPacket,
-    #[cfg(feature = "ibc3")]
     pub relayer: Addr,
 }
 
 impl IbcPacketReceiveMsg {
-    #[cfg(not(feature = "ibc3"))]
-    pub fn new(packet: IbcPacket) -> Self {
-        Self { packet }
-    }
-
-    #[cfg(feature = "ibc3")]
     pub fn new(packet: IbcPacket, relayer: Addr) -> Self {
         Self { packet, relayer }
     }
@@ -427,20 +417,10 @@ impl IbcPacketReceiveMsg {
 pub struct IbcPacketAckMsg {
     pub acknowledgement: IbcAcknowledgement,
     pub original_packet: IbcPacket,
-    #[cfg(feature = "ibc3")]
     pub relayer: Addr,
 }
 
 impl IbcPacketAckMsg {
-    #[cfg(not(feature = "ibc3"))]
-    pub fn new(acknowledgement: IbcAcknowledgement, original_packet: IbcPacket) -> Self {
-        Self {
-            acknowledgement,
-            original_packet,
-        }
-    }
-
-    #[cfg(feature = "ibc3")]
     pub fn new(
         acknowledgement: IbcAcknowledgement,
         original_packet: IbcPacket,
@@ -459,17 +439,10 @@ impl IbcPacketAckMsg {
 #[non_exhaustive]
 pub struct IbcPacketTimeoutMsg {
     pub packet: IbcPacket,
-    #[cfg(feature = "ibc3")]
     pub relayer: Addr,
 }
 
 impl IbcPacketTimeoutMsg {
-    #[cfg(not(feature = "ibc3"))]
-    pub fn new(packet: IbcPacket) -> Self {
-        Self { packet }
-    }
-
-    #[cfg(feature = "ibc3")]
     pub fn new(packet: IbcPacket, relayer: Addr) -> Self {
         Self { packet, relayer }
     }

packages/std/src/lib.rs

@@ -51,11 +51,12 @@ pub use crate::errors::{
     VerificationError,
 };
 pub use crate::hex_binary::HexBinary;
+pub use crate::ibc::IbcChannelOpenResponse;
 pub use crate::ibc::{
     Ibc3ChannelOpenResponse, IbcAcknowledgement, IbcBasicResponse, IbcChannel, IbcChannelCloseMsg,
-    IbcChannelConnectMsg, IbcChannelOpenMsg, IbcChannelOpenResponse, IbcEndpoint, IbcMsg, IbcOrder,
-    IbcPacket, IbcPacketAckMsg, IbcPacketReceiveMsg, IbcPacketTimeoutMsg, IbcReceiveResponse,
-    IbcTimeout, IbcTimeoutBlock,
+    IbcChannelConnectMsg, IbcChannelOpenMsg, IbcEndpoint, IbcMsg, IbcOrder, IbcPacket,
+    IbcPacketAckMsg, IbcPacketReceiveMsg, IbcPacketTimeoutMsg, IbcReceiveResponse, IbcTimeout,
+    IbcTimeoutBlock,
 };
 #[cfg(feature = "iterator")]
 pub use crate::iterator::{Order, Record};

packages/std/src/testing/mock.rs

@@ -433,7 +433,6 @@ pub fn mock_ibc_packet_recv(
             }
             .into(),
         },
-        #[cfg(feature = "ibc3")]
         Addr::unchecked("relayer"),
     ))
 }
@@ -476,25 +475,20 @@ pub fn mock_ibc_packet_ack(
     Ok(IbcPacketAckMsg::new(
         ack,
         packet,
-        #[cfg(feature = "ibc3")]
         Addr::unchecked("relayer"),
     ))
 }
 
 /// Creates a IbcPacketTimeoutMsg for testing ibc_packet_timeout. You set a few key parameters that are
 /// often parsed. If you want to set more, use this as a default and mutate other fields.
-/// The difference from mock_ibc_packet_recv is if `my_channel_id` is src or dest./
+/// The difference from mock_ibc_packet_recv is if `my_channel_id` is src or dest.
 #[cfg(feature = "stargate")]
 pub fn mock_ibc_packet_timeout(
     my_channel_id: &str,
     data: &impl Serialize,
 ) -> StdResult<IbcPacketTimeoutMsg> {
     let packet = mock_ibc_packet(my_channel_id, data)?;
-    Ok(IbcPacketTimeoutMsg::new(
-        packet,
-        #[cfg(feature = "ibc3")]
-        Addr::unchecked("relayer"),
-    ))
+    Ok(IbcPacketTimeoutMsg::new(packet, Addr::unchecked("relayer")))
 }
 
 /// The same type as cosmwasm-std's QuerierResult, but easier to reuse in

packages/vm/Cargo.toml

@@ -21,7 +21,7 @@ backtraces = []
 iterator = ["cosmwasm-std/iterator"]
 staking = ["cosmwasm-std/staking"]
 # this enables all stargate-related functionality, including the ibc entry points
-stargate = ["cosmwasm-std/stargate", "cosmwasm-std/ibc3"]
+stargate = ["cosmwasm-std/stargate"]
 # Use cranelift backend instead of singlepass. This is required for development on Windows.
 cranelift = ["wasmer/cranelift"]
 # It's a bit unclear if interface_version_7 (CosmWasm 0.16) contracts are fully compatible

packages/vm/src/calls.rs

@@ -825,9 +825,10 @@ mod tests {
         use crate::testing::{
             mock_env, mock_info, mock_instance, MockApi, MockQuerier, MockStorage,
         };
+        use cosmwasm_std::testing::mock_ibc_packet_timeout;
         use cosmwasm_std::testing::{
             mock_ibc_channel_close_init, mock_ibc_channel_connect_ack, mock_ibc_channel_open_init,
-            mock_ibc_packet_ack, mock_ibc_packet_recv, mock_ibc_packet_timeout, mock_wasmd_attr,
+            mock_ibc_packet_ack, mock_ibc_packet_recv, mock_wasmd_attr,
         };
         use cosmwasm_std::{
             Empty, Event, IbcAcknowledgement, IbcOrder, Reply, ReplyOn, SubMsgResponse,