diff -U2 -r /var/lib/copr-rpmbuild/results/i2pd-git/upstream-unpacked/Source0/i2pd-openssl/libi2pd/Destination.cpp /var/lib/copr-rpmbuild/results/i2pd-git/srpm-unpacked/i2pd-openssl.tar.gz-extract/i2pd-openssl/libi2pd/Destination.cpp
--- /var/lib/copr-rpmbuild/results/i2pd-git/upstream-unpacked/Source0/i2pd-openssl/libi2pd/Destination.cpp	2026-06-22 20:39:34.000000000 +0000
+++ /var/lib/copr-rpmbuild/results/i2pd-git/srpm-unpacked/i2pd-openssl.tar.gz-extract/i2pd-openssl/libi2pd/Destination.cpp	2026-06-22 18:09:59.000000000 +0000
@@ -1170,19 +1170,15 @@
 	void ClientDestination::UpdateOfflineSignature (const i2p::data::PrivateKeys& keys)
 	{
-		// Adopt a newer offline transient of the same identity in place, on the
-		// destination's service so it stays single-threaded with LeaseSet and stream
-		// signing. Only the transient is refreshed, the identity is unchanged.
-		if (!keys.IsOfflineSignature ()) return;
+		// Adopt a newer offline transient of the same identity in place: swap keys and
+		// republish the LeaseSet, keeping tunnels and streams (unlike SetPrivateKeys).
+		if (!keys.IsOfflineSignature () || !m_Keys.IsOfflineSignature ()) return;
+		if (keys.GetPublic ()->GetIdentHash () != GetIdentHash ()) return;
+		const uint32_t expires = bufbe32toh (keys.GetOfflineSignature ().data ());
+		if (expires <= bufbe32toh (m_Keys.GetOfflineSignature ().data ())) return; // only move forward
+		LogPrint (eLogInfo, "Destination: Refreshing offline signature for ",
+			GetIdentHash ().ToBase32 (), ", transient expires ", expires);
 		boost::asio::post (GetService (), [s = GetSharedFromThis (), keys]()
 		{
-			if (!s->m_Keys.IsOfflineSignature ()) return;
-			if (keys.GetPublic ()->GetIdentHash () != s->GetIdentHash ()) return;
-			const auto& next = keys.GetOfflineSignature ();
-			const auto& cur = s->m_Keys.GetOfflineSignature ();
-			if (next == cur) return; // same transient
-			if (bufbe32toh (next.data ()) < bufbe32toh (cur.data ())) return; // do not shorten validity
-			LogPrint (eLogInfo, "Destination: Refreshing offline signature for ",
-				s->GetIdentHash ().ToBase32 (), ", transient expires ", bufbe32toh (next.data ()));
-			s->m_Keys.UpdateOfflineSignature (keys);
+			s->m_Keys = keys;
 			s->UpdateLeaseSet ();
 		});
diff -U2 -r /var/lib/copr-rpmbuild/results/i2pd-git/upstream-unpacked/Source0/i2pd-openssl/libi2pd/Identity.cpp /var/lib/copr-rpmbuild/results/i2pd-git/srpm-unpacked/i2pd-openssl.tar.gz-extract/i2pd-openssl/libi2pd/Identity.cpp
--- /var/lib/copr-rpmbuild/results/i2pd-git/upstream-unpacked/Source0/i2pd-openssl/libi2pd/Identity.cpp	2026-06-22 20:39:34.000000000 +0000
+++ /var/lib/copr-rpmbuild/results/i2pd-git/srpm-unpacked/i2pd-openssl.tar.gz-extract/i2pd-openssl/libi2pd/Identity.cpp	2026-06-22 18:09:59.000000000 +0000
@@ -644,15 +644,4 @@
 	}
 
-	void PrivateKeys::UpdateOfflineSignature (const PrivateKeys& other)
-	{
-		// same identity (m_Public): refresh only the transient material and the signer
-		m_SigningPrivateKey = other.m_SigningPrivateKey;
-		m_OfflineSignature = other.m_OfflineSignature;
-		m_TransientSignatureLen = other.m_TransientSignatureLen;
-		m_TransientSigningPrivateKeyLen = other.m_TransientSigningPrivateKeyLen;
-		m_Signer = nullptr;
-		CreateSigner ();
-	}
-
 	void PrivateKeys::CreateSigner () const
 	{
diff -U2 -r /var/lib/copr-rpmbuild/results/i2pd-git/upstream-unpacked/Source0/i2pd-openssl/libi2pd/Identity.h /var/lib/copr-rpmbuild/results/i2pd-git/srpm-unpacked/i2pd-openssl.tar.gz-extract/i2pd-openssl/libi2pd/Identity.h
--- /var/lib/copr-rpmbuild/results/i2pd-git/upstream-unpacked/Source0/i2pd-openssl/libi2pd/Identity.h	2026-06-22 20:39:34.000000000 +0000
+++ /var/lib/copr-rpmbuild/results/i2pd-git/srpm-unpacked/i2pd-openssl.tar.gz-extract/i2pd-openssl/libi2pd/Identity.h	2026-06-22 18:09:59.000000000 +0000
@@ -192,5 +192,4 @@
 			PrivateKeys CreateOfflineKeys (SigningKeyType type, uint32_t expires) const;
 			const std::vector<uint8_t>& GetOfflineSignature () const { return m_OfflineSignature; };
-			void UpdateOfflineSignature (const PrivateKeys& other); // refresh transient material, keep identity
 
 		private: