Prepare 4.0 Release

Update the changelog and the SO version of the library.

Change-Id: I1aa486ae778484dca1a2f19037c3885d1fe0d301

CHANGELOG.md

@@ -6,20 +6,37 @@ All notable changes to this project will be documented in this file.
 
 ## Changed
 
+## Fixed
+
+## Added
+
+# Release 4.0.0
+
+Multiple (self-contained) example programs have been added to illustrate the features of this
+libary. Otherwise, just smaller clean up tasks.
+
+As part of the clean up, the `DigestTypes` enum has been moved from the openssl namespace into
+the mococrw namespace. A `using` statement  was added to make this backwards-compatible API-wise.
+It is, however, an ABI change. Thus, this is a new major version release.
+
+## Details
+
+### Changed
+
 * Replace `explicit_bzero(3)` with `OPENSSL_cleanse(3)` to fix compilation on non-glibc systems. (see #75)
 * Replaced manual calculation of hash digest length by library function in ECIES
 * Improved error message when attempting to create an AES-GCM cipher with empty IV. (see #83)
 * Move DigestTypes from openssl namespace to mococrw namespace. This is an ABI change!
 * Add error detection to utility::fromHex (This changes the behaviour of fromHex as it will throw
 errors on invalid string from now on.)
 
-## Fixed
+### Fixed
 
 * Exception message in AESCipher (thrown if key has unexpected length)
 * Install target of documentation
 * Fix toggling stream cipher test when encrypting short messages
 
-## Added
+### Added
 
 * Examples for KDF, MAC, ECIES and EdDSA, and updated existing examples and documentation
 * Expose `mococrw/bio.h` as public header to simplify interoperability with OpenSSL functions

src/CMakeLists.txt

@@ -2,7 +2,7 @@ project(MoCOCrW VERSION 0.1.0)
 
 string(TOLOWER ${PROJECT_NAME} LIBRARY_NAME)
 
-set(MoCOCrW_SOVERSION "3.0")
+set(MoCOCrW_SOVERSION "4.0")
 add_definitions(
     -DMOCOCRW_VERSION="${MoCOCrW_VERSION}"
     -DMOCOCRW_SOVERSION="${MoCOCrW_SOVERSION}"