According to the project's change log, between 4.53 and 4.55 were performance
improvements and bug fixes.
Index: Makefile
===================================================================
RCS file: /cvs/ports/archivers/p7zip/Makefile,v
retrieving revision 1.5
diff -u -r1.5 Makefile
--- Makefile 15 Sep 2007 10:14:33 -0000 1.5
+++ Makefile 3 Dec 2007 22:47:36 -0000
@@ -5,7 +5,7 @@
COMMENT-main= file archiver with high compression ratio
COMMENT-rar= rar modules for p7zip
-V= 4.53
+V= 4.55
DISTNAME= p7zip_${V}_src_all
PKGNAME= p7zip-${V}
PKGNAME-main= p7zip-${V}
Index: distinfo
===================================================================
RCS file: /cvs/ports/archivers/p7zip/distinfo,v
retrieving revision 1.4
diff -u -r1.4 distinfo
--- distinfo 10 Sep 2007 10:52:40 -0000 1.4
+++ distinfo 3 Dec 2007 22:48:39 -0000
@@ -1,5 +1,5 @@
-MD5 (p7zip_4.53_src_all.tar.bz2) = MxRQRj1XN7upbL6iEVq+iw==
-RMD160 (p7zip_4.53_src_all.tar.bz2) = IFuSDRQjgk5nW/qUKQwUEAJMN8o=
-SHA1 (p7zip_4.53_src_all.tar.bz2) = V3YCXknRTzFI0qm109BnuxnG10U=
-SHA256 (p7zip_4.53_src_all.tar.bz2) =
Da9c6CDTocpZDrbu4mE3gVxryR2BPR0J/haLgvDdb10=
-SIZE (p7zip_4.53_src_all.tar.bz2) = 1488885
+MD5 (p7zip_4.55_src_all.tar.bz2) = uxQVKc8jdKLhVzXxVScxcg==
+RMD160 (p7zip_4.55_src_all.tar.bz2) = 0iRXJGHwS1OXbi5FptHDSqvaGNg=
+SHA1 (p7zip_4.55_src_all.tar.bz2) = fdb3XAMfFfPTea8+II4uTWX1W7c=
+SHA256 (p7zip_4.55_src_all.tar.bz2) =
VgTCG0/sG3Pmv4tpsMP5ej8mnN2XXDvcXZYd5+2KCDU=
+SIZE (p7zip_4.55_src_all.tar.bz2) = 1487801