docs: update v2 api docs to account F3-awareness in v1.34.0 (#13352)

Author: BigLep

documentation/en/api-experimental-user-facing-v2-docs/api-v2-experimental.md

@@ -7,6 +7,8 @@
 
 # Meta
 ## Status
+- 2025-09-19: Update to account for the F3-awareness that was added to `/v1` APIs in Lotus v1.34.0.  This was reviewed in PR [#13352](https://github.com/filecoin-project/lotus/pull/13352).
+- 2025-08-29: Updated to summarize the difference between `/v1` and `/v2`.  This was reviewed in PR [#13284](https://github.com/filecoin-project/lotus/pull/13284).
 - 2025-06-06: Updated to make clear the impact on the APIs if F3 isn't finalizing or if the latest F3-finalized tipset is older than the latest EC-finalized tipset. This was reviewed in [PR #13161](https://github.com/filecoin-project/lotus/pull/13161).
 - 2025-04-24: This document has been updated to include information about Eth APIs in `/v2`.  This was reviewed in [PR #13068](https://github.com/filecoin-project/lotus/pull/13068).
 - 2025-04-23: This document has been updated to account for the minimum initial set of non-Eth /v2 API groups as specified in [issue #12991](https://github.com/filecoin-project/lotus/issues/12991).  This was reviewed in [PR #13051](https://github.com/filecoin-project/lotus/pull/13051)
@@ -113,12 +115,12 @@ ETH APIs have also been updated with F3 awareness for the `finalized` and `safe`
 
 | Group | Dimension | `/v1` | `/v2` |
 | --- | --- | --- | --- |
-| non-ETH APIs | F3 awareness | ❌ | ✅ |
+| non-ETH APIs | F3 awareness | ☑️ Only `ChainGetFinalizedTipSet` | ✅ |
 |  | Selector pattern | ❌ | ✅ |
 |  | Stable | ✅ | Experimental.  There are no known changes to make, but we’ll make breaking changes in response to user feedback. |
-|  | Support level | Full.  Critical bugs can trigger emergency patch releases.  Backwards compatibility is a chief concern. | Very responsive to any feedback or bugs, and bugs impacting production usage can trigger an emergency patch release.  Backwards compatbility isn’t a concern currently until we get more feedback on the API. |
-|  | Footprint | Large as has accumulated bloat over the years. | Small.  There is a lot of functionality from `/v1` that doesn’t have a `v2` corrolary yet. |
-| ETH APIs | F3 awareness | ❌ | ✅ :`finalized` and `safe` tags consult the F3 subsystem (see [Ethereum (Eth)](#ethereum-eth)). |
+|  | Support level | Full.  Critical bugs can trigger emergency patch releases.  Backwards compatibility is a chief concern. | Very responsive to any feedback or bugs, and bugs impacting production usage can trigger an emergency patch release.  Backwards compatibility isn’t a concern currently until we get more feedback on the API. |
+|  | Footprint | Large as has accumulated bloat over the years. | Small.  There is a lot of functionality from `/v1` that doesn’t have a `v2` equivalent yet. |
+| ETH APIs | F3 awareness | ✅ :`finalized` and `safe` tags consult the F3 subsystem (see [Ethereum (Eth)](#ethereum-eth)). | ✅ Same |
 |  | Support level | Full | Same  |
 |  | Footprint | See [Lotus Ethereum API Compatibility](https://www.notion.so/filecoindev/Lotus-Ethereum-API-Compatibility-1d0dc41950c180cc8c3ecc9033d56cc7)  | Same.  Any `/v1` ETH APIs are supported in `/v2`. |
 
@@ -445,7 +447,7 @@ If the address cannot be resolved to an ID address at the specified tipset state
 
 ## Ethereum (Eth)
 
-The V2 API namespace includes all the Ethereum (Eth) APIs that `/v1` supports, but the `finalized` and `safe` tags have been updated to consult the F3 subsystem (if enabled) for finality information.  `finalized` and `safe` for the "Eth" APIs has the same meaning and fallback outlined in  [Consensus Protocol Notes](#consensus-protocol-notes).  In addition, in V2, `safe` will look back a maximum 30 epochs, whereas V1 looks back 30.
+The V2 API namespace includes all the Ethereum (Eth) APIs that `/v1` supports.  As of Lotus v1.34.0, both `/v1` and `/v2` have had the `finalized` and `safe` tags updated to consult the F3 subsystem (if enabled) for finality information.  `finalized` and `safe` for the "Eth" APIs has the same meaning and fallback outlined in  [Consensus Protocol Notes](#consensus-protocol-notes).  In addition, `safe` will look back a maximum 200 epochs.
 
 For a complete list of available Eth methods in V2, refer to the [V2 autogenerated documentation](https://github.com/filecoin-project/lotus/blob/master/documentation/en/api-v2-unstable-methods.md#eth).