diff -U2 -r /var/lib/copr-rpmbuild/results/i2pd-git/upstream-unpacked/Source0/i2pd-openssl/libi2pd_client/UDPTunnel.cpp /var/lib/copr-rpmbuild/results/i2pd-git/srpm-unpacked/i2pd-openssl.tar.gz-extract/i2pd-openssl/libi2pd_client/UDPTunnel.cpp
--- /var/lib/copr-rpmbuild/results/i2pd-git/upstream-unpacked/Source0/i2pd-openssl/libi2pd_client/UDPTunnel.cpp	2026-04-17 18:43:24.000000000 +0000
+++ /var/lib/copr-rpmbuild/results/i2pd-git/srpm-unpacked/i2pd-openssl.tar.gz-extract/i2pd-openssl/libi2pd_client/UDPTunnel.cpp	2026-04-17 17:46:00.000000000 +0000
@@ -275,12 +275,7 @@
 			if (!m_UnackedDatagrams.empty () && m_NextSendPacketNum > m_UnackedDatagrams.front ().first + I2P_UDP_MAX_NUM_UNACKED_DATAGRAMS)
 			{
-				// window is full, try to delete expired unacked datagrams first
-				DeleteExpiredUnackedDatagrams ();
-				if (!m_UnackedDatagrams.empty () && m_NextSendPacketNum > m_UnackedDatagrams.front ().first + I2P_UDP_MAX_NUM_UNACKED_DATAGRAMS)
-				{
-					// window is full, drop packet
-					Receive ();
-					return;
-				}
+				// window is full, drop packet
+				Receive ();
+				return;
 			}
 			LogPrint(eLogDebug, "UDPSession: Forward ", len, "B from ", FromEndpoint);