X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=NEWS;h=4467ebcde59a2aec24bee7cc44c4fe41667fc35c;hp=4ca4f99d5a1d8603f5ddf781125058424f37ec93;hb=ce4857b36a6999286b9425469f761dc15dac8794;hpb=67f1265822c67ab189b71e611a4c9aedab4f57df

diff --git a/NEWS b/NEWS
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+++ b/NEWS
@@ -1,10 +1,33 @@
 This file records noteworthy changes.
 
+0.5.4 (15 March 2000)
+* Some algorithms in class matrix (notably determinant) were replaced by
+  less brain-dead ones and should now have much better performance.
+* Checks were completely reorganized and split up into three parts:
+  a) exams (small regression tests with predefined input)
+  b) checks (lenghty coherence checks with random input)
+  c) timings (for coherence and crude benchmarking)
+* Behaviour of .evalf() was changed: it doesn't .evalf() any exponents.
+* Expanded expressions now remember they are expanded to prevent
+  superfluous expansions.
+* Small bugfixes and improvements in the series expansion.
+
+0.5.3 (23 February 2000)
+* A more flexible scheme for registering functions was implemented,
+  allowing for remembering, too.
+* Some Bugfixes.
+
+0.5.2 (16 February 2000)
+* Mainly fixes a bug in the packaging of release 0.5.1.
+
+0.5.1 (14 February 2000)
+* Fixes a small number of bugs.
+
 0.5.0 (7 February 2000)
 * Expressions can be written ("archived") to files and read therefrom.
 * Addition of GiNaC-cint, which lets you write complete programs in
   an interactive shell-like manner in your favoured programming
-  language (C++).
+  language (i.e. C++).
 
 0.4.1 (13 December 1999)
 * Series Expansion of Gamma function and some other trigonometric