fix: rewording

Author: nhussein11

llms.txt

@@ -610,7 +610,8 @@ The [`XcmRouter`](https://paritytech.github.io/polkadot-sdk/master/pallet_xcm/pa
 For instance, the Kusama network employs the [`ChildParachainRouter`](https://paritytech.github.io/polkadot-sdk/master/polkadot_runtime_common/xcm_sender/struct.ChildParachainRouter.html){target=\_blank}, which restricts routing to [Downward Message Passing (DMP)](https://wiki.polkadot.network/learn/learn-xcm-transport/#dmp-downward-message-passing){target=\_blank} from the relay chain to parachains, ensuring secure and controlled communication.
 
 ```rust
-// Only one router so far - use DMP to communicate with child parachains.
+pub type XcmRouter = WithUniqueTopic<(
+	// Only one router so far - use DMP to communicate with child parachains.
 	ChildParachainRouter<Runtime, XcmPallet, PriceForChildParachainDelivery>,
 )>;
 ```
@@ -34174,13 +34175,13 @@ To define your chain specification:
     You should now see your chain specification containing SCALE-encoded hex values versus plain text.
 
 
-!!!note "Deprecation of `para_id` in Chain Specs"
+!!!note "`para_id` Considerations"
 
-    The `para_id` field in JSON chain specifications, added through the [`chain-spec-builder`](https://paritytech.github.io/polkadot-sdk/master/staging_chain_spec_builder/index.html){target=\_blank} command, is currently used by nodes for configuration purposes. However, beginning with Polkadot SDK release `stable2509`, the `para_id` field will no longer be required in chain specifications. Instead, runtimes need to be updated to implement the [`cumulus_primitives_core::GetParachainInfo`](https://paritytech.github.io/polkadot-sdk/master/cumulus_primitives_core/trait.GetParachainInfo.html){target=\_blank} trait to successfully operate with nodes using chain specs that omit the `para_id` field.
+    The `para_id` field in JSON chain specifications, added through the [`chain-spec-builder`](https://paritytech.github.io/polkadot-sdk/master/staging_chain_spec_builder/index.html){target=\_blank} command, is used by nodes for configuration purposes. Beginning with Polkadot SDK release `stable2509`, runtimes can optionally implement the [`cumulus_primitives_core::GetParachainInfo`](https://paritytech.github.io/polkadot-sdk/master/cumulus_primitives_core/trait.GetParachainInfo.html){target=\_blank} trait as an alternative method for parachain identification.
 
-    With the upcoming `stable2512` release, the `para_id` field will be completely removed from chain specifications in favor of the new runtime API. New nodes will be unable to start with chain specs containing the `para_id` field unless the runtime implements the `GetParachainInfo` trait. Ensure your runtime is updated to maintain compatibility with future node versions.
+    However, the `para_id` field will remain supported in chain specifications for backwards compatibility. This ensures that nodes can still sync from genesis or from runtime states that existed before the `GetParachainInfo` runtime API was introduced.
 
-    For guidance on performing runtime upgrades to implement this new trait, refer to the [runtime upgrade tutorial](/tutorials/polkadot-sdk/parachains/zero-to-hero/runtime-upgrade/){target=\_blank}.
+    For guidance on performing runtime upgrades to implement the `GetParachainInfo` trait, refer to the [runtime upgrade tutorial](/tutorials/polkadot-sdk/parachains/zero-to-hero/runtime-upgrade/){target=\_blank}.
 
 ## Export Required Files
 

tutorials/polkadot-sdk/parachains/zero-to-hero/deploy-to-testnet.md

@@ -149,13 +149,13 @@ To define your chain specification:
     You should now see your chain specification containing SCALE-encoded hex values versus plain text.
 
 
-!!!note "Deprecation of `para_id` in Chain Specs"
+!!!note "`para_id` Considerations"
 
-    The `para_id` field in JSON chain specifications, added through the [`chain-spec-builder`](https://paritytech.github.io/polkadot-sdk/master/staging_chain_spec_builder/index.html){target=\_blank} command, is currently used by nodes for configuration purposes. However, beginning with Polkadot SDK release `stable2509`, the `para_id` field will no longer be required in chain specifications. Instead, runtimes need to be updated to implement the [`cumulus_primitives_core::GetParachainInfo`](https://paritytech.github.io/polkadot-sdk/master/cumulus_primitives_core/trait.GetParachainInfo.html){target=\_blank} trait to successfully operate with nodes using chain specs that omit the `para_id` field.
+    The `para_id` field in JSON chain specifications, added through the [`chain-spec-builder`](https://paritytech.github.io/polkadot-sdk/master/staging_chain_spec_builder/index.html){target=\_blank} command, is used by nodes for configuration purposes. Beginning with Polkadot SDK release `stable2509`, runtimes can optionally implement the [`cumulus_primitives_core::GetParachainInfo`](https://paritytech.github.io/polkadot-sdk/master/cumulus_primitives_core/trait.GetParachainInfo.html){target=\_blank} trait as an alternative method for parachain identification.
 
-    With the upcoming `stable2512` release, the `para_id` field will be completely removed from chain specifications in favor of the new runtime API. New nodes will be unable to start with chain specs containing the `para_id` field unless the runtime implements the `GetParachainInfo` trait. Ensure your runtime is updated to maintain compatibility with future node versions.
+    However, the `para_id` field will remain supported in chain specifications for backwards compatibility. This ensures that nodes can still sync from genesis or from runtime states that existed before the `GetParachainInfo` runtime API was introduced.
 
-    For guidance on performing runtime upgrades to implement this new trait, refer to the [runtime upgrade tutorial](/tutorials/polkadot-sdk/parachains/zero-to-hero/runtime-upgrade/){target=\_blank}.
+    For guidance on performing runtime upgrades to implement the `GetParachainInfo` trait, refer to the [runtime upgrade tutorial](/tutorials/polkadot-sdk/parachains/zero-to-hero/runtime-upgrade/){target=\_blank}.
 
 ## Export Required Files