From 8b166b232760ed4cae4f2009a6f96d79858db9c3 Mon Sep 17 00:00:00 2001
From: Lorenz Leutgeb <lorenz.leutgeb@radicle.xyz>
Date: Sun, 22 Mar 2026 17:59:20 +0100
Subject: [PATCH] fetch: Log on old sigrefs

In hopes of nudging users to upgrade, print a warning if older feature
levels are encountered. However, only do this for delegates, as these
are more critical for the repository, to not log too many warnings.
---
 crates/radicle-fetch/src/state.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/crates/radicle-fetch/src/state.rs b/crates/radicle-fetch/src/state.rs
index 209de59b..c7f378fd 100644
--- a/crates/radicle-fetch/src/state.rs
+++ b/crates/radicle-fetch/src/state.rs
@@ -8,7 +8,7 @@ use radicle::identity::{Did, Doc, DocError};
 
 use radicle::storage;
 use radicle::storage::git::Repository;
-use radicle::storage::refs::RefsAt;
+use radicle::storage::refs::{FeatureLevel, RefsAt};
 use radicle::storage::{
     git::Validation, Remote, RemoteId, RemoteRepository, Remotes, ValidateRepository, Validations,
 };
@@ -548,6 +548,7 @@ impl FetchState {
                         }
                     }
 
+                    let level = refs.feature_level();
                     let cache = self.as_cached(handle);
                     let mut fails =
                         sigrefs::validate(&cache, refs)?.unwrap_or(Validations::default());
@@ -561,6 +562,10 @@ impl FetchState {
                         valid_delegates.insert(remote);
                         remotes.insert(remote);
                     }
+
+                    if level < FeatureLevel::LATEST {
+                        log::warn!("Delegate {remote} is on feature level '{level}' which is lower than '{}', they should consider upgrading Radicle.", FeatureLevel::LATEST)
+                    }
                 }
             }
         }