@ -223,6 +223,14 @@ In addition to numerous new and upgraded packages, this release has the followin
- The MoinMoin wiki engine (`services.moinmoin`) has been removed, because Python 2 is being retired from nixpkgs.
- Services in the `hadoop` module previously set `openFirewall` to true by default.
This has now been changed to false. Node definitions for multi-node clusters would need
`openFirewall = true;` to be added to to hadoop services when upgrading from NixOS 21.11.
- `services.hadoop.yarn.nodemanager` now uses cgroup-based CPU limit enforcement by default.
Additionally, the option `useCGroups` was added to nodemanagers as an easy way to switch
back to the old behavior.
- The `wafHook` hook now honors `NIX_BUILD_CORES` when `enableParallelBuilding` is not set explicitly. Packages can restore the old behaviour by setting `enableParallelBuilding=false`.
- `pkgs.claws-mail-gtk2`, representing Claws Mail's older release version three, was removed in order to get rid of Python 2.
@ -391,6 +399,11 @@ In addition to numerous new and upgraded packages, this release has the followin
- The `writers.writePyPy2`/`writers.writePyPy3` and corresponding `writers.writePyPy2Bin`/`writers.writePyPy3Bin` convenience functions to create executable Python 2/3 scripts using the PyPy interpreter were added.
- Some improvements have been made to the `hadoop` module:
- A `gatewayRole` option has been added, for deploying hadoop cluster configuration files to a node that does not have any active services
- Support for older versions of hadoop have been added to the module
- Overriding and extending site XML files has been made easier
- If you are using Wayland you can choose to use the Ozone Wayland support
in Chrome and several Electron apps by setting the environment variable