diff --git a/Changelog b/Changelog
index 490ca76..c5b65f0 100644
--- a/Changelog
+++ b/Changelog
@@ -1,3 +1,32 @@
+== 2.1 Update Release ==
+Add more tests covering Segmented Global Dedupe.
+Fix some tests.
+Switch location of Dedupe context creation to allow correct index memory sizing.
+Update README with details of Global Dedupe block hash selection.
+Add SSE2 optimizations for Segmented Dedupe.
+Fix segment offset sorting.
+Get rid of incorrect duplicate checks in index.
+Allow SKEIN to be used as a Global Dedupe chunk lookup hash.                                                                                                        
+Add a qsort variant optimized for integers and use in global dedupe.
+Cleanup LZMA CRC64/32 declarations and add a header.
+Fix heapq header.
+Use openmp parallelism always for chunk hash computation during Global Dedupe.
+Use SHA256 for Global Dedupe chunk lookup hash by default.
+Allow changing Global Dedupe chunk lookup hash via env variable.
+Fix crash with some older GCC versions. Reported in issue #7.
+Fix issue #7.
+Ensure tempfile cleanup even with error abort.
+Fix bugs and improve accuracy in Segmented Dedupe.
+Fix segment hashlist size computation.
+Remove unnecessary sync of segment hashlist file writes.
+Pass correct number of threads to index creation routine.
+Add more error checks.
+Handle correct positioning of segment hashlist file offset on write error.
+Add missing semaphore signaling at dedupe abort points with global dedupe.
+Use closer min-values sampling for improved segmented dedupe accuracy.
+Update proper checksum info in README.
+Fix sizing of similarity hash buffer.
+Tweak index size computation.
 == 2.0 Major Release ==
 Add test cases for Global Deduplication.
 Update documentation and code comments.
diff --git a/README.md b/README.md
index b098be0..383f549 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 Pcompress
 =========
 
-Copyright (C) 2012 Moinak Ghosh. All rights reserved.
+Copyright (C) 2012-2013 Moinak Ghosh. All rights reserved.
 Use is subject to license terms.
 moinakg (_at) gma1l _dot com.
 Comments, suggestions, code, rants etc are welcome.
@@ -12,13 +12,13 @@ support for multiple algorithms like LZMA, Bzip2, PPMD, etc, with SKEIN/
 SHA checksums for data integrity. It can also do Lempel-Ziv pre-compression
 (derived from libbsc) to improve compression ratios across the board. SSE
 optimizations for the bundled LZMA are included. It also implements
-chunk-level Content-Aware Deduplication and Delta Compression features
-based on a Semi-Rabin Fingerprinting scheme. Delta Compression is done
-via the widely popular bsdiff algorithm. Similarity is detected using a
-technique based on MinHashing. When doing chunk-level dedupe it attempts
-to merge adjacent non-duplicate blocks index entries into a single larger
-entry to reduce metadata. In addition to all these it can internally split
-chunks at rabin boundaries to help dedupe and compression.
+Variable Block Deduplication and Delta Compression features based on a
+Semi-Rabin Fingerprinting scheme. Delta Compression is done via the widely
+popular bsdiff algorithm. Similarity is detected using a technique based
+on MinHashing. When doing Dedupe it attempts to merge adjacent non-
+duplicate block index entries into a single larger entry to reduce metadata.
+In addition to all these it can internally split chunks at rabin boundaries
+to help Dedupe and compression.
 
 It has low metadata overhead and overlaps I/O and compression to achieve
 maximum parallelism. It also bundles a simple slab allocator to speed
diff --git a/pcompress.h b/pcompress.h
index 56f4060..e9f6c1d 100644
--- a/pcompress.h
+++ b/pcompress.h
@@ -44,7 +44,7 @@ extern "C" {
 #define	FLAG_DEDUP	1
 #define	FLAG_DEDUP_FIXED	2
 #define	FLAG_SINGLE_CHUNK	4
-#define	UTILITY_VERSION	"2.0"
+#define	UTILITY_VERSION	"2.1"
 #define	MASK_CRYPTO_ALG	0x30
 #define	MAX_LEVEL	14