From e842b54328c9f26be795014aa7ffd5cc3b728c73 Mon Sep 17 00:00:00 2001
From: himotoyoshi <himotoyoshi@kde.biglobe.ne.jp>
Date: Wed, 16 Jun 2021 11:52:07 +0900
Subject: [PATCH] Updates NEWS.md

---
 NEWS.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/NEWS.md b/NEWS.md
index 5ca4aa5..20c48e0 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,6 +1,18 @@
 ChangeLog of Ruby/CArray
 ========================
 
+1.5.6 -> 1.5.7
+
+* [Mod] Modify the methods 'CArray#first' and 'CArray#last' to return nil when the number of elements is zero
+* [Fix] Added check of having ArithmeticSeuqence in ruby_carray.c
+
+1.5.5 -> 1.5.6
+
+* [Mod] Modify CArray access methods to accept Enumerator::ArithmeticSequence for index, address
+* [Mod] Remove some gem autoloading (io_csv, io_sqlite3, rmagick, cairo, opencv, ffi)
+* [Mod] Modify 'CArray#valid_index?' and 'CArray#valid_addr?' to accept negative integers
+* [Mod] Modify the methods 'CArray#double' etc not to raise error for invalid string in conversion into float
+
 1.5.4 -> 1.5.5
 
 * [Fix] Fix recognition of "atan2", ... in "math.h"