Merge branch '2.0' into chore/tests/block-id

sdk/src/client/api/block_builder/mod.rs

@@ -19,6 +19,7 @@ impl ClientInner {
     pub async fn build_basic_block(&self, issuer_id: AccountId, payload: Option<Payload>) -> Result<UnsignedBlock> {
         let issuance = self.get_issuance().await?;
 
+        // TODO https://github.com/iotaledger/iota-sdk/issues/1753
         let issuing_time = {
             #[cfg(feature = "std")]
             let issuing_time = std::time::SystemTime::now()

sdk/src/types/api/core.rs

@@ -277,6 +277,9 @@ pub struct IssuanceBlockHeaderResponse {
     /// Blocks that are directly referenced to adjust opinion.
     #[serde(default, skip_serializing_if = "BTreeSet::is_empty")]
     pub shallow_like_parents: BTreeSet<BlockId>,
+    // Latest issuing time of the returned parents.
+    #[serde(with = "string")]
+    pub latest_parent_block_issuing_time: u64,
     /// The slot index of the latest finalized slot.
     pub latest_finalized_slot: SlotIndex,
     /// The latest slot commitment.

sdk/src/types/block/protocol/mod.rs

@@ -91,6 +91,8 @@ pub struct ProtocolParameters {
     /// Defines the target size of the committee. If there's fewer candidates the actual committee size could be
     /// smaller in a given epoch.
     pub(crate) target_committee_size: u8,
+    /// Defines the number of heavier slots that a chain needs to be ahead of the current chain to be considered for switching.
+    pub(crate) chain_switching_threshold: u8,
 }
 
 // This implementation is required to make [`ProtocolParameters`] a [`Packable`] visitor.
@@ -128,6 +130,7 @@ impl Default for ProtocolParameters {
             version_signaling_parameters: Default::default(),
             rewards_parameters: Default::default(),
             target_committee_size: 32,
+            chain_switching_threshold: 3,
         }
     }
 }