Bump file version.

README.md

@@ -25,6 +25,9 @@ modes in which multiple algorithms are tried per chunk to determine the best
 one for the given chunk. Finally it supports 14 compression levels to allow
 for ultra compression modes in some algorithms.
 
+NOTE: This utility is Not an archiver. It compresses only single files or
+      datastreams. To archive use something else like tar, cpio or pax.
+
 Usage
 =====
 

main.c

@@ -501,7 +501,7 @@ start_decompress(const char *filename, const char *to_filename)
 	chunksize = ntohll(chunksize);
 	level = ntohl(level);
 
-	if (version != VERSION) {
+	if (version < VERSION-1) {
 		fprintf(stderr, "Unsupported version: %d\n", version);
 		err = 1;
 		goto uncomp_done;

pcompress.h

@@ -37,7 +37,7 @@ extern "C" {
 #define	CHDR_SZ		1
 #define	ALGO_SZ		8
 #define	MIN_CHUNK	2048
-#define	VERSION		2
+#define	VERSION		3
 #define	FLAG_DEDUP	1
 #define	UTILITY_VERSION	0.7