update changelog, news, readme for 1.7.0

Author: Paul Dreik

ChangeLog

@@ -1,3 +1,7 @@
+2025-02-03 Paul Dreik <rdfind@pauldreik.se>
+        * release 1.7.0
+	* add xxh checksum for speed
+	* add controllable buffer size -buffersize N
 2023-06-17 Paul Dreik <rdfind@pauldreik.se>
         * release 1.6.0
 2023-06-17 Paul Dreik <rdfind@pauldreik.se>

NEWS

@@ -1,5 +1,7 @@
-next
+1.7.0
 requires a C++17 capable compiler.
+new fast non-cryptographic hash xxh
+controllable buffer size for calculating checksum
 1.6.0
 supports sha512
 1.4.0alpha

README.md

@@ -123,7 +123,7 @@ Here is how to get and install nettle from source. Please check for the current
 ### Quality
 The following methods are used to maintain code quality:
  - builds without warnings on gcc and clang, even with all the suggested warnings from [cppbestpractices](https://github.com/lefticus/cppbestpractices/blob/master/02-Use_the_Tools_Available.md) enabled. Pass --enable-warnings to configure to turn them on.
- - builds with standards c++11, 14, 17 and 2a
+ - builds with standards c++17 and 20
  - tests are written for newly found bugs, first to prove the bug and then to prove that it is fixed. Older bugs do not all have tests.
  - tests are also run through valgrind
  - tests are run on address sanitizer builds