Release 2.4.4

- [API] Add lsquic_alpn2ver() to aid parsing Alt-Svc header.
- [BUGFIX] NULL dereference when H3 frame header would be split.
- [BUGFIX] Do not close fixed-size H3 frame prematurely.
- [BUGFIX] Allow PING frames in IETF mini conn.
- [BUGFIX] Mini conns: don't send any packets after receiving
  CONNECTION_CLOSE.
- [BUGFIX] Client migration: reserve slot for DCID from transport params.
- [BUGFIX] Allow max_early_data_size=0 -- early_data might not be there.
- [BUGFIX] Use an invalid stream number to reset BPT cache (zero is now a
  valid stream number).
- [SPEC] Use FINAL_SIZE_ERROR when FIN mismatch is detected.
- [OPTIMIZATION] Closed connection only gets one chance to send packets.
- [OPTIMIZATION] Flush headers stream before packetizing stream data.
- [OPTIMIZATION] process QPACK encoder STREAM frames immediately.
- Update ls-qpack to v0.10.1.

include/lsquic.h

@@ -25,7 +25,7 @@ extern "C" {
 
 #define LSQUIC_MAJOR_VERSION 2
 #define LSQUIC_MINOR_VERSION 4
-#define LSQUIC_PATCH_VERSION 3
+#define LSQUIC_PATCH_VERSION 4
 
 /**
  * Engine flags:
@@ -1505,6 +1505,10 @@ lsquic_conn_crypto_cipher (const lsquic_conn_t *c);
 enum lsquic_version
 lsquic_str2ver (const char *str, size_t len);
 
+/** Translate ALPN (e.g. "h3", "h3-23", "h3-Q046") to LSQUIC enum */
+enum lsquic_version
+lsquic_alpn2ver (const char *alpn, size_t len);
+
 /**
  * This function closes all mini connections and marks all full connection
  * as going away.  In server mode, this also causes the engine to stop