Update NEWS for 5.0.6 and 5.1.4beta.
diff --git a/NEWS b/NEWS
index 4125d5f..4b82e01 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,49 @@
XZ Utils Release Notes
======================
+5.1.4beta (2014-09-14)
+
+ * All fixes from 5.0.6
+
+ * liblzma: Fixed the use of presets in threaded encoder
+ initialization.
+
+ * xz --block-list and --block-size can now be used together
+ in single-threaded mode. Previously the combination only
+ worked in multi-threaded mode.
+
+ * Added support for LZMA_IGNORE_CHECK to liblzma and made it
+ available in xz as --ignore-check.
+
+ * liblzma speed optimizations:
+
+ - Initialization of a new LZMA1 or LZMA2 encoder has been
+ optimized. (The speed of reinitializing an already-allocated
+ encoder isn't affected.) This helps when compressing many
+ small buffers with lzma_stream_buffer_encode() and other
+ similar situations where an already-allocated encoder state
+ isn't reused. This speed-up is visible in xz too if one
+ compresses many small files one at a time instead running xz
+ once and giving all files as command-line arguments.
+
+ - Buffer comparisons are now much faster when unaligned access
+ is allowed (configured with --enable-unaligned-access). This
+ speeds up encoding significantly. There is arch-specific code
+ for 32-bit and 64-bit x86 (32-bit needs SSE2 for the best
+ results and there's no run-time CPU detection for now).
+ For other archs there is only generic code which probably
+ isn't as optimal as arch-specific solutions could be.
+
+ - A few speed optimizations were made to the SHA-256 code.
+ (Note that the builtin SHA-256 code isn't used on all
+ operating systems.)
+
+ * liblzma can now be built with MSVC 2013 update 2 or later
+ using windows/config.h.
+
+ * Vietnamese translation was added.
+
+
5.1.3alpha (2013-10-26)
* All fixes from 5.0.5
@@ -121,6 +164,13 @@
experimental and may change before it gets into a stable release.
+5.0.6 (2014-09-14)
+
+ * xzgrep now exits with status 0 if at least one file matched.
+
+ * A few minor portability and build system fixes
+
+
5.0.5 (2013-06-30)
* lzmadec and liblzma's lzma_alone_decoder(): Support decompressing
