prepare release notes for EasyBuild v4.6.0 + bump version to 4.6.0

Author: SebastianAchilles

RELEASE_NOTES

@@ -4,6 +4,30 @@ For more detailed information, please see the git log.
 These release notes can also be consulted at https://easybuild.readthedocs.io/en/latest/Release_notes.html.
 
 
+v4.6.0 (July 8th 2022)
+----------------------
+
+feature release
+
+- various enhancements, including:
+  - allow searching for sources/patches in alternative location by specifying 'alt_location' in source/patch spec (#3994)
+  - show URLs used for download attempts in trace output (#4026)
+  - add support for setting environment variables via 'pushenv' with modextravars (#4030)
+  - add support for OneAPI compilers using toolchain option 'oneapi' (#4031)
+  - add dedicated test for opting in to using oneAPI Intel compilers (#4032)
+  - make check_linked_shared_libs more robust by taking into account that 'ldd' may fail (#4033)
+  - fallback to sequential extension install if parallel install is not implemented (#4034)
+  - add support for using template values in name/version of extensions (#4036)
+- various bug fixes, including:
+  - make sure that ARCH constant has 'aarch64' (rather than 'arm64') as value on macOS ARM (#4018)
+  - tweak eb wrapper script to correctly handle errors when python command being considered fails to run (#4019)
+  - tweak is_patch_for function to make it more robust (#4028)
+  - don't use -ftz for Intel oneAPI compilers versions before 2022.x (#4039)
+- other changes:
+  - update Lmod used to run tests to version 8.7.4 (#4027)
+  - tweak apply_patch to not create .orig files (by default) when applying patch files (#4038)
+
+
 v4.5.5 (June 8th 2022)
 ----------------------
 

easybuild/tools/version.py

@@ -43,7 +43,7 @@
 # recent setuptools versions will *TRANSFORM* something like 'X.Y.Zdev' into 'X.Y.Z.dev0', with a warning like
 #   UserWarning: Normalizing '2.4.0dev' to '2.4.0.dev0'
 # This causes problems further up the dependency chain...
-VERSION = LooseVersion('4.5.6.dev0')
+VERSION = LooseVersion('4.6.0')
 UNKNOWN = 'UNKNOWN'