diff --git a/CHANGELOG b/CHANGELOG
index 90693cd..bff5e0c 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,8 @@
+2021-03-17
+    - 2.29.5
+    - Fix a few issues detected by h3spec for better compliance with HTTP/3
+      standard.
+
 2021-03-08
     - 2.29.4
     - [BUGFIX] Infinite loop in stream: returned HQ frame can be at any
diff --git a/docs/conf.py b/docs/conf.py
index 6c942f3..df74224 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -26,7 +26,7 @@ author = u'LiteSpeed Technologies'
 # The short X.Y version
 version = u'2.29'
 # The full version, including alpha/beta/rc tags
-release = u'2.29.4'
+release = u'2.29.5'
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/include/lsquic.h b/include/lsquic.h
index 164ff7c..29b4a5e 100644
--- a/include/lsquic.h
+++ b/include/lsquic.h
@@ -25,7 +25,7 @@ extern "C" {
 
 #define LSQUIC_MAJOR_VERSION 2
 #define LSQUIC_MINOR_VERSION 29
-#define LSQUIC_PATCH_VERSION 4
+#define LSQUIC_PATCH_VERSION 5
 
 /**
  * Engine flags:
diff --git a/src/liblsquic/lsquic_full_conn_ietf.c b/src/liblsquic/lsquic_full_conn_ietf.c
index 4d5d2aa..9ee2bb3 100644
--- a/src/liblsquic/lsquic_full_conn_ietf.c
+++ b/src/liblsquic/lsquic_full_conn_ietf.c
@@ -6393,6 +6393,13 @@ process_new_token_frame (struct ietf_full_conn *conn,
         return 0;
     }
 
+    if (conn->ifc_flags & IFC_SERVER)
+    {   /* [draft-ietf-quic-transport-34] Section 19.7 */
+        ABORT_QUIETLY(0, TEC_PROTOCOL_VIOLATION,
+                                    "received unexpected NEW_TOKEN frame");
+        return 0;
+    }
+
     if (LSQ_LOG_ENABLED(LSQ_LOG_DEBUG)
                             || LSQ_LOG_ENABLED_EXT(LSQ_LOG_DEBUG, LSQLM_EVENT))
     {
@@ -6858,17 +6865,22 @@ parse_regular_packet (struct ietf_full_conn *conn,
     p = packet_in->pi_data + packet_in->pi_header_sz;
     pend = packet_in->pi_data + packet_in->pi_data_sz;
 
-    while (p < pend)
-    {
-        len = process_packet_frame(conn, packet_in, p, pend - p);
-        if (len > 0)
-            p += len;
-        else
+    if (p < pend)
+        do
         {
-            ABORT_ERROR("Error parsing frame");
-            break;
+            len = process_packet_frame(conn, packet_in, p, pend - p);
+            if (len > 0)
+                p += len;
+            else
+            {
+                ABORT_ERROR("Error parsing frame");
+                break;
+            }
         }
-    }
+        while (p < pend);
+    else
+        ABORT_QUIETLY(0, TEC_PROTOCOL_VIOLATION,
+            "packet %"PRIu64" has no frames", packet_in->pi_packno);
 }
 
 
@@ -8959,7 +8971,8 @@ on_settings_frame (void *ctx)
     LSQ_DEBUG("SETTINGS frame");
     if (conn->ifc_flags & IFC_HAVE_PEER_SET)
     {
-        ABORT_WARN("second incoming SETTING frame on HTTP control stream");
+        ABORT_QUIETLY(1, HEC_FRAME_UNEXPECTED,
+            "second incoming SETTING frame on HTTP control stream");
         return;
     }
 
diff --git a/src/liblsquic/lsquic_qdec_hdl.c b/src/liblsquic/lsquic_qdec_hdl.c
index 0dda8e0..87fb1b7 100644
--- a/src/liblsquic/lsquic_qdec_hdl.c
+++ b/src/liblsquic/lsquic_qdec_hdl.c
@@ -380,7 +380,7 @@ qdh_read_encoder_stream (void *ctx, const unsigned char *buf, size_t sz,
         LSQ_INFO("error reading encoder stream");
         qerr = lsqpack_dec_get_err_info(&qdh->qdh_decoder);
         qdh->qdh_conn->cn_if->ci_abort_error(qdh->qdh_conn, 1,
-            HEC_QPACK_DECODER_STREAM_ERROR, "Error interpreting QPACK encoder "
+            HEC_QPACK_ENCODER_STREAM_ERROR, "Error interpreting QPACK encoder "
             "stream; offset %"PRIu64", line %d", qerr->off, qerr->line);
         goto end;
     }
diff --git a/src/liblsquic/lsquic_trans_params.c b/src/liblsquic/lsquic_trans_params.c
index 1c5fed4..bf6b468 100644
--- a/src/liblsquic/lsquic_trans_params.c
+++ b/src/liblsquic/lsquic_trans_params.c
@@ -153,7 +153,7 @@ static const uint64_t max_vals[MAX_NUMERIC_TPI + 1] =
      * it is not required by the spec and is not necessary.
      */
     [TPI_MAX_UDP_PAYLOAD_SIZE]              =  VINT_MAX_VALUE,
-    [TPI_ACK_DELAY_EXPONENT]                =  VINT_MAX_VALUE,
+    [TPI_ACK_DELAY_EXPONENT]                =  TP_MAX_ACK_DELAY_EXP,
     [TPI_INIT_MAX_STREAMS_UNI]              =  1ull << 60,
     [TPI_INIT_MAX_STREAMS_BIDI]             =  1ull << 60,
     [TPI_INIT_MAX_DATA]                     =  VINT_MAX_VALUE,
diff --git a/src/liblsquic/lsquic_trans_params.h b/src/liblsquic/lsquic_trans_params.h
index 03afbf1..22d101b 100644
--- a/src/liblsquic/lsquic_trans_params.h
+++ b/src/liblsquic/lsquic_trans_params.h
@@ -128,6 +128,9 @@ struct transport_params
 #define TP_DEF_MAX_ACK_DELAY 25u
 #define TP_DEF_ACTIVE_CONNECTION_ID_LIMIT 2
 
+/* [draft-ietf-quic-transport-34], Section 18.2 */
+#define TP_MAX_ACK_DELAY_EXP 20
+
 /* [draft-ietf-quic-transport-18], Section 18.1 */
 #define TP_MAX_MAX_ACK_DELAY ((1u << 14) - 1)